In the present work, PbO·Bi2O3·Ga2O3 glasses were synthesized using standard melt-quench technique. The temperature dependent conductivity data of the glasses have been obtained using impedance spectroscopy in the frequency range from 10Hz to 7MHz and in the temperature range from 473K to 703 K. Complex Impedance plots suggest the non-Debye nature of relaxing ions. The dc conductivity follows Arrhenius behavior and decreased with increase in PbO content because of increase of network forming PbO4 units, increases the network dimensionality and blocking the migration of mobile ions.
{"title":"Electrical characterization and dielectric behavior of PbO·Bi2O3·Ga2O3 glasses","authors":"R. Bala, A. Agarwal, S. Sanghi, Sanjay","doi":"10.1063/1.5122424","DOIUrl":"https://doi.org/10.1063/1.5122424","url":null,"abstract":"In the present work, PbO·Bi2O3·Ga2O3 glasses were synthesized using standard melt-quench technique. The temperature dependent conductivity data of the glasses have been obtained using impedance spectroscopy in the frequency range from 10Hz to 7MHz and in the temperature range from 473K to 703 K. Complex Impedance plots suggest the non-Debye nature of relaxing ions. The dc conductivity follows Arrhenius behavior and decreased with increase in PbO content because of increase of network forming PbO4 units, increases the network dimensionality and blocking the migration of mobile ions.","PeriodicalId":7262,"journal":{"name":"ADVANCES IN BASIC SCIENCE (ICABS 2019)","volume":"97 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85989197","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Lithium boro bismuth tellurite glasses doped with Er3+ ions were successfully prepared by conventional melt quenching method and investigated their temperature dependent AC conductivity through impedance analyzer. The frequency dependent AC conductivity has been analyzed using Almond-West type of power law. The conductivity increases with increase of both frequency and temperature. The obtained conductivity values lie in the range of 4.092x10−5 to 3.024x10−5 S/cm. The AC conductivity mechanism can be reasonably inference in terms of correlated barrier hopping (CBH) model.Lithium boro bismuth tellurite glasses doped with Er3+ ions were successfully prepared by conventional melt quenching method and investigated their temperature dependent AC conductivity through impedance analyzer. The frequency dependent AC conductivity has been analyzed using Almond-West type of power law. The conductivity increases with increase of both frequency and temperature. The obtained conductivity values lie in the range of 4.092x10−5 to 3.024x10−5 S/cm. The AC conductivity mechanism can be reasonably inference in terms of correlated barrier hopping (CBH) model.
{"title":"Transport properties of Er3+Ions doped lithium boro bismuth tellurite glasses","authors":"B. Eraiah, K. Keshavamurthy","doi":"10.1063/1.5122418","DOIUrl":"https://doi.org/10.1063/1.5122418","url":null,"abstract":"Lithium boro bismuth tellurite glasses doped with Er3+ ions were successfully prepared by conventional melt quenching method and investigated their temperature dependent AC conductivity through impedance analyzer. The frequency dependent AC conductivity has been analyzed using Almond-West type of power law. The conductivity increases with increase of both frequency and temperature. The obtained conductivity values lie in the range of 4.092x10−5 to 3.024x10−5 S/cm. The AC conductivity mechanism can be reasonably inference in terms of correlated barrier hopping (CBH) model.Lithium boro bismuth tellurite glasses doped with Er3+ ions were successfully prepared by conventional melt quenching method and investigated their temperature dependent AC conductivity through impedance analyzer. The frequency dependent AC conductivity has been analyzed using Almond-West type of power law. The conductivity increases with increase of both frequency and temperature. The obtained conductivity values lie in the range of 4.092x10−5 to 3.024x10−5 S/cm. The AC conductivity mechanism can be reasonably inference in terms of correlated barrier hopping (CBH) model.","PeriodicalId":7262,"journal":{"name":"ADVANCES IN BASIC SCIENCE (ICABS 2019)","volume":"97 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88845502","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In the present work, we study the interaction of gamma-rays with oxides of lanthanides, namely lanthanum oxide (La2O3) and europium oxide (Eu2O3). Variation of mass attenuation coefficient values with gamma-ray photon energy is calculated using WinXcom software package in the energy range 1 keV to 103 MeV. The total mass attenuation coefficient values are further used to assign the effective atomic number Zeff and the electron density Ne for these lanthanide oxides. The results obtained for effective atomic number are also compared with the experimental data.In the present work, we study the interaction of gamma-rays with oxides of lanthanides, namely lanthanum oxide (La2O3) and europium oxide (Eu2O3). Variation of mass attenuation coefficient values with gamma-ray photon energy is calculated using WinXcom software package in the energy range 1 keV to 103 MeV. The total mass attenuation coefficient values are further used to assign the effective atomic number Zeff and the electron density Ne for these lanthanide oxides. The results obtained for effective atomic number are also compared with the experimental data.
{"title":"Assigning effective atomic number and electron density for some lanthanide oxides over wide gamma-rays energies","authors":"Baljeet Kaur, N. Rani, Yogesh K Vermani, T. Singh","doi":"10.1063/1.5122501","DOIUrl":"https://doi.org/10.1063/1.5122501","url":null,"abstract":"In the present work, we study the interaction of gamma-rays with oxides of lanthanides, namely lanthanum oxide (La2O3) and europium oxide (Eu2O3). Variation of mass attenuation coefficient values with gamma-ray photon energy is calculated using WinXcom software package in the energy range 1 keV to 103 MeV. The total mass attenuation coefficient values are further used to assign the effective atomic number Zeff and the electron density Ne for these lanthanide oxides. The results obtained for effective atomic number are also compared with the experimental data.In the present work, we study the interaction of gamma-rays with oxides of lanthanides, namely lanthanum oxide (La2O3) and europium oxide (Eu2O3). Variation of mass attenuation coefficient values with gamma-ray photon energy is calculated using WinXcom software package in the energy range 1 keV to 103 MeV. The total mass attenuation coefficient values are further used to assign the effective atomic number Zeff and the electron density Ne for these lanthanide oxides. The results obtained for effective atomic number are also compared with the experimental data.","PeriodicalId":7262,"journal":{"name":"ADVANCES IN BASIC SCIENCE (ICABS 2019)","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86516293","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
We experience a daily reality such that we can be overpowered with data; in this manner it has turned out to be progressively critical to separate pertinent data from the unstable measure of information for. Information Mining is the iterative and intuitive procedure of finding substantial, novel, valuable, and justifiable examples or models in gigantic databases. Information Mining implies looking for important data in extensive volumes of information, utilizing investigation and examination, via programmed or self-loader implies, of expansive amounts of information so as to find significant examples and standards. Soft Computing (SC) alludes to methods of figuring in which accuracy is exchanged for tractability, heartiness and simplicity of usage. For the most part, SC encompasses the technologies of fuzzy logic, genetic algorithms, and neural networks, and it has emerged as an effective tool for dealing with data mining, control, modeling, and decision problems in complex systems. This is a review of the role of various soft-computing tools for different data mining tasks.We experience a daily reality such that we can be overpowered with data; in this manner it has turned out to be progressively critical to separate pertinent data from the unstable measure of information for. Information Mining is the iterative and intuitive procedure of finding substantial, novel, valuable, and justifiable examples or models in gigantic databases. Information Mining implies looking for important data in extensive volumes of information, utilizing investigation and examination, via programmed or self-loader implies, of expansive amounts of information so as to find significant examples and standards. Soft Computing (SC) alludes to methods of figuring in which accuracy is exchanged for tractability, heartiness and simplicity of usage. For the most part, SC encompasses the technologies of fuzzy logic, genetic algorithms, and neural networks, and it has emerged as an effective tool for dealing with data mining, control, modeling, and decision problems in complex systems. This is a review of t...
{"title":"Mining of data through various soft computing techniques","authors":"D. Srivastava, Rajeshwar Singh, Vikram Singh","doi":"10.1063/1.5122549","DOIUrl":"https://doi.org/10.1063/1.5122549","url":null,"abstract":"We experience a daily reality such that we can be overpowered with data; in this manner it has turned out to be progressively critical to separate pertinent data from the unstable measure of information for. Information Mining is the iterative and intuitive procedure of finding substantial, novel, valuable, and justifiable examples or models in gigantic databases. Information Mining implies looking for important data in extensive volumes of information, utilizing investigation and examination, via programmed or self-loader implies, of expansive amounts of information so as to find significant examples and standards. Soft Computing (SC) alludes to methods of figuring in which accuracy is exchanged for tractability, heartiness and simplicity of usage. For the most part, SC encompasses the technologies of fuzzy logic, genetic algorithms, and neural networks, and it has emerged as an effective tool for dealing with data mining, control, modeling, and decision problems in complex systems. This is a review of the role of various soft-computing tools for different data mining tasks.We experience a daily reality such that we can be overpowered with data; in this manner it has turned out to be progressively critical to separate pertinent data from the unstable measure of information for. Information Mining is the iterative and intuitive procedure of finding substantial, novel, valuable, and justifiable examples or models in gigantic databases. Information Mining implies looking for important data in extensive volumes of information, utilizing investigation and examination, via programmed or self-loader implies, of expansive amounts of information so as to find significant examples and standards. Soft Computing (SC) alludes to methods of figuring in which accuracy is exchanged for tractability, heartiness and simplicity of usage. For the most part, SC encompasses the technologies of fuzzy logic, genetic algorithms, and neural networks, and it has emerged as an effective tool for dealing with data mining, control, modeling, and decision problems in complex systems. This is a review of t...","PeriodicalId":7262,"journal":{"name":"ADVANCES IN BASIC SCIENCE (ICABS 2019)","volume":"22 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84706377","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
S. Yadav, S. Kumari, Monika Barala, D. Mohan, R. Dhar, S. Chaudhary
Semiconducting Vanadate (V2O5 based) glass has plentiful application in the field of electrochemical batteries and optical switches. Theoretical investigation for density and molar volume are done for semiconducting glass with composition 60V2O5.(40-x) ZnO.xMoO3 (x=10,13,16,19,22). The density decreases from 4.168-4.057g/cm3 with increasing MoO3 content and an opposite behavior is observed for Molar volume. Using Lorentz- Lorenz equation index of refraction is calculated and found to be very high (4.103 to 3.920) and Oxide ion polarizability varies little in the range 2.6935- 2.6908A3. Using generalized Miller’s rule, third order nonlinear optical susceptibility found to be very high 2.39x10−6 to 1.61x10−6 esu. and Nonlinear Index of Refraction varies from 2.194x10−5 to 1.555x10−5esu.Semiconducting Vanadate (V2O5 based) glass has plentiful application in the field of electrochemical batteries and optical switches. Theoretical investigation for density and molar volume are done for semiconducting glass with composition 60V2O5.(40-x) ZnO.xMoO3 (x=10,13,16,19,22). The density decreases from 4.168-4.057g/cm3 with increasing MoO3 content and an opposite behavior is observed for Molar volume. Using Lorentz- Lorenz equation index of refraction is calculated and found to be very high (4.103 to 3.920) and Oxide ion polarizability varies little in the range 2.6935- 2.6908A3. Using generalized Miller’s rule, third order nonlinear optical susceptibility found to be very high 2.39x10−6 to 1.61x10−6 esu. and Nonlinear Index of Refraction varies from 2.194x10−5 to 1.555x10−5esu.
{"title":"Estimation of physical and nonlinear optical parameters of vanadate glasses","authors":"S. Yadav, S. Kumari, Monika Barala, D. Mohan, R. Dhar, S. Chaudhary","doi":"10.1063/1.5122378","DOIUrl":"https://doi.org/10.1063/1.5122378","url":null,"abstract":"Semiconducting Vanadate (V2O5 based) glass has plentiful application in the field of electrochemical batteries and optical switches. Theoretical investigation for density and molar volume are done for semiconducting glass with composition 60V2O5.(40-x) ZnO.xMoO3 (x=10,13,16,19,22). The density decreases from 4.168-4.057g/cm3 with increasing MoO3 content and an opposite behavior is observed for Molar volume. Using Lorentz- Lorenz equation index of refraction is calculated and found to be very high (4.103 to 3.920) and Oxide ion polarizability varies little in the range 2.6935- 2.6908A3. Using generalized Miller’s rule, third order nonlinear optical susceptibility found to be very high 2.39x10−6 to 1.61x10−6 esu. and Nonlinear Index of Refraction varies from 2.194x10−5 to 1.555x10−5esu.Semiconducting Vanadate (V2O5 based) glass has plentiful application in the field of electrochemical batteries and optical switches. Theoretical investigation for density and molar volume are done for semiconducting glass with composition 60V2O5.(40-x) ZnO.xMoO3 (x=10,13,16,19,22). The density decreases from 4.168-4.057g/cm3 with increasing MoO3 content and an opposite behavior is observed for Molar volume. Using Lorentz- Lorenz equation index of refraction is calculated and found to be very high (4.103 to 3.920) and Oxide ion polarizability varies little in the range 2.6935- 2.6908A3. Using generalized Miller’s rule, third order nonlinear optical susceptibility found to be very high 2.39x10−6 to 1.61x10−6 esu. and Nonlinear Index of Refraction varies from 2.194x10−5 to 1.555x10−5esu.","PeriodicalId":7262,"journal":{"name":"ADVANCES IN BASIC SCIENCE (ICABS 2019)","volume":"13 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87802641","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Study of ferrites has always been a topic of immense significance from the point of view of their magnetic applications, including their usage in high frequency devices, microwave devices, bioscience. For the same, there is a need to understand magnetic properties, and their correlation with structural properties, to be able to have a suitable material for a specific application. This article reviews various spinel ferrite systems in the framework of a specific synthesis protocol (with variable synthesis parameters, including microwave assisted green synthesis etc.), a precise composition (with possibilities for its modification), and usage of post-preparation thermal treatment (e. g. - conventional furnace annealing, microwave sintering, park plasma sintering, ion irradiation etc.). Complimentary information on structural (by x-ray diffraction ‘XRD’); magnetic (by vibration sample magnetometer ‘VSM’) properties as well are described. Representative examples of ferrite nano particles are also given, depicting the effect of composition, synthesis protocol, and post-preparation treatment (including an overview of various spinel nanoparticles in tabular form), showing modification of structural, magnetic properties, correlation between them is illustrated.Study of ferrites has always been a topic of immense significance from the point of view of their magnetic applications, including their usage in high frequency devices, microwave devices, bioscience. For the same, there is a need to understand magnetic properties, and their correlation with structural properties, to be able to have a suitable material for a specific application. This article reviews various spinel ferrite systems in the framework of a specific synthesis protocol (with variable synthesis parameters, including microwave assisted green synthesis etc.), a precise composition (with possibilities for its modification), and usage of post-preparation thermal treatment (e. g. - conventional furnace annealing, microwave sintering, park plasma sintering, ion irradiation etc.). Complimentary information on structural (by x-ray diffraction ‘XRD’); magnetic (by vibration sample magnetometer ‘VSM’) properties as well are described. Representative examples of ferrite nano particles are also given, depic...
{"title":"Preparation condition, composition and post-preparation thermal treatment assisted control of structural and magnetic properties of spinel nano ferrites","authors":"S. Kane, R. Verma, P. Tiwari, F. Mazaleyrat","doi":"10.1063/1.5122326","DOIUrl":"https://doi.org/10.1063/1.5122326","url":null,"abstract":"Study of ferrites has always been a topic of immense significance from the point of view of their magnetic applications, including their usage in high frequency devices, microwave devices, bioscience. For the same, there is a need to understand magnetic properties, and their correlation with structural properties, to be able to have a suitable material for a specific application. This article reviews various spinel ferrite systems in the framework of a specific synthesis protocol (with variable synthesis parameters, including microwave assisted green synthesis etc.), a precise composition (with possibilities for its modification), and usage of post-preparation thermal treatment (e. g. - conventional furnace annealing, microwave sintering, park plasma sintering, ion irradiation etc.). Complimentary information on structural (by x-ray diffraction ‘XRD’); magnetic (by vibration sample magnetometer ‘VSM’) properties as well are described. Representative examples of ferrite nano particles are also given, depicting the effect of composition, synthesis protocol, and post-preparation treatment (including an overview of various spinel nanoparticles in tabular form), showing modification of structural, magnetic properties, correlation between them is illustrated.Study of ferrites has always been a topic of immense significance from the point of view of their magnetic applications, including their usage in high frequency devices, microwave devices, bioscience. For the same, there is a need to understand magnetic properties, and their correlation with structural properties, to be able to have a suitable material for a specific application. This article reviews various spinel ferrite systems in the framework of a specific synthesis protocol (with variable synthesis parameters, including microwave assisted green synthesis etc.), a precise composition (with possibilities for its modification), and usage of post-preparation thermal treatment (e. g. - conventional furnace annealing, microwave sintering, park plasma sintering, ion irradiation etc.). Complimentary information on structural (by x-ray diffraction ‘XRD’); magnetic (by vibration sample magnetometer ‘VSM’) properties as well are described. Representative examples of ferrite nano particles are also given, depic...","PeriodicalId":7262,"journal":{"name":"ADVANCES IN BASIC SCIENCE (ICABS 2019)","volume":"17 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87997542","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
D-Pinitol (C6H12O6) is reportedly a bioactive naturally occurring molecule isolated from the leaves of Anthocephalus chinensis plant whose electronic structure parameters, vibrational and electroni...
{"title":"Theoretical evaluation of the bioactivity of a plant-derived natural molecule-D-Pinitol and other derived structure","authors":"A. Mishra, S. Tewari","doi":"10.1063/1.5122568","DOIUrl":"https://doi.org/10.1063/1.5122568","url":null,"abstract":"D-Pinitol (C6H12O6) is reportedly a bioactive naturally occurring molecule isolated from the leaves of Anthocephalus chinensis plant whose electronic structure parameters, vibrational and electroni...","PeriodicalId":7262,"journal":{"name":"ADVANCES IN BASIC SCIENCE (ICABS 2019)","volume":"14 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87094922","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The Zinc oxide thin films were grown on the amorphous glass substrate using Successive Ionic Layer Adsorption and Reaction (SILAR) technique at room temperature. The various preparative parameters were optimized to obtain good quality films. The as-grown films were annealed at 350° C for 2 h in air. The comparative study of the annealed and the as-grown thin films of ZnO were done for structural, optical and electrical studies. Polycrystalline nature was depicted from the x-ray diffraction (XRD) patterns. The peak intensity of as-grown ZnO thin films enhances after annealing. The average grain size calculated from XRD patterns was 17.66 nm for as-grown, while it increased to 24.66 nm after annealing. The band gap of as-grown ZnO thin films was relatively higher and was found to be 3.80 eV. After air annealing, the band gap decrease to 3.58 eV. The current-voltage characteristics show nearly ohmic behavior with decrease in the film resistance, after annealing in air. N-type conductivity was confirmed from the TEP measurements.The Zinc oxide thin films were grown on the amorphous glass substrate using Successive Ionic Layer Adsorption and Reaction (SILAR) technique at room temperature. The various preparative parameters were optimized to obtain good quality films. The as-grown films were annealed at 350° C for 2 h in air. The comparative study of the annealed and the as-grown thin films of ZnO were done for structural, optical and electrical studies. Polycrystalline nature was depicted from the x-ray diffraction (XRD) patterns. The peak intensity of as-grown ZnO thin films enhances after annealing. The average grain size calculated from XRD patterns was 17.66 nm for as-grown, while it increased to 24.66 nm after annealing. The band gap of as-grown ZnO thin films was relatively higher and was found to be 3.80 eV. After air annealing, the band gap decrease to 3.58 eV. The current-voltage characteristics show nearly ohmic behavior with decrease in the film resistance, after annealing in air. N-type conductivity was confirmed from ...
{"title":"Effect of annealing on the structural and opto-electrical properties of as-grown ZnO thin films by successive ionic layer adsorption and reaction (SILAR) technique","authors":"Kiran, Poonam, A. Ghosh, Sanjay, Vijender Singh","doi":"10.1063/1.5122337","DOIUrl":"https://doi.org/10.1063/1.5122337","url":null,"abstract":"The Zinc oxide thin films were grown on the amorphous glass substrate using Successive Ionic Layer Adsorption and Reaction (SILAR) technique at room temperature. The various preparative parameters were optimized to obtain good quality films. The as-grown films were annealed at 350° C for 2 h in air. The comparative study of the annealed and the as-grown thin films of ZnO were done for structural, optical and electrical studies. Polycrystalline nature was depicted from the x-ray diffraction (XRD) patterns. The peak intensity of as-grown ZnO thin films enhances after annealing. The average grain size calculated from XRD patterns was 17.66 nm for as-grown, while it increased to 24.66 nm after annealing. The band gap of as-grown ZnO thin films was relatively higher and was found to be 3.80 eV. After air annealing, the band gap decrease to 3.58 eV. The current-voltage characteristics show nearly ohmic behavior with decrease in the film resistance, after annealing in air. N-type conductivity was confirmed from the TEP measurements.The Zinc oxide thin films were grown on the amorphous glass substrate using Successive Ionic Layer Adsorption and Reaction (SILAR) technique at room temperature. The various preparative parameters were optimized to obtain good quality films. The as-grown films were annealed at 350° C for 2 h in air. The comparative study of the annealed and the as-grown thin films of ZnO were done for structural, optical and electrical studies. Polycrystalline nature was depicted from the x-ray diffraction (XRD) patterns. The peak intensity of as-grown ZnO thin films enhances after annealing. The average grain size calculated from XRD patterns was 17.66 nm for as-grown, while it increased to 24.66 nm after annealing. The band gap of as-grown ZnO thin films was relatively higher and was found to be 3.80 eV. After air annealing, the band gap decrease to 3.58 eV. The current-voltage characteristics show nearly ohmic behavior with decrease in the film resistance, after annealing in air. N-type conductivity was confirmed from ...","PeriodicalId":7262,"journal":{"name":"ADVANCES IN BASIC SCIENCE (ICABS 2019)","volume":"38 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85287601","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
We have studied structural,magnetic and dielectric properties of Mo-doped ZnCu2Nb2O8 with Mo replacing Nb ion. Here we have prepared polycrystalline samples ZnCu2(Nb1-x Mox)2O8 with x=0.0 and 0.1. X-ray powder diffraction and allied Rietveldrefinement analysis have been used to analyze the structure of the samples. The ZnCu2Nb2O8 shows paramagnetic behavior in whole temperature range. In ZnCu2Nb2O8, Nb+2(S=0) is a non-magnetic site, we have tried to tune the non-magnetic site with magnetic Mo+2(S=1/2). With Mo substitution at Nb-site, magnetic moment decreases and the system remainin paramagnetic state in whole temperature range. Effect of Mo doping shows a structural change in lattice parameters while there is no change in electrical properties as well as in magnetic properties. Frequency dependent dielectric measurement has been done at room temperature.We have studied structural,magnetic and dielectric properties of Mo-doped ZnCu2Nb2O8 with Mo replacing Nb ion. Here we have prepared polycrystalline samples ZnCu2(Nb1-x Mox)2O8 with x=0.0 and 0.1. X-ray powder diffraction and allied Rietveldrefinement analysis have been used to analyze the structure of the samples. The ZnCu2Nb2O8 shows paramagnetic behavior in whole temperature range. In ZnCu2Nb2O8, Nb+2(S=0) is a non-magnetic site, we have tried to tune the non-magnetic site with magnetic Mo+2(S=1/2). With Mo substitution at Nb-site, magnetic moment decreases and the system remainin paramagnetic state in whole temperature range. Effect of Mo doping shows a structural change in lattice parameters while there is no change in electrical properties as well as in magnetic properties. Frequency dependent dielectric measurement has been done at room temperature.
{"title":"Investigation of structural, magnetic and dielectric properties of Mo-doped ZnCu2Nb2O8","authors":"K. Roy, K. C. Kharkwal, A. Pramanik","doi":"10.1063/1.5122449","DOIUrl":"https://doi.org/10.1063/1.5122449","url":null,"abstract":"We have studied structural,magnetic and dielectric properties of Mo-doped ZnCu2Nb2O8 with Mo replacing Nb ion. Here we have prepared polycrystalline samples ZnCu2(Nb1-x Mox)2O8 with x=0.0 and 0.1. X-ray powder diffraction and allied Rietveldrefinement analysis have been used to analyze the structure of the samples. The ZnCu2Nb2O8 shows paramagnetic behavior in whole temperature range. In ZnCu2Nb2O8, Nb+2(S=0) is a non-magnetic site, we have tried to tune the non-magnetic site with magnetic Mo+2(S=1/2). With Mo substitution at Nb-site, magnetic moment decreases and the system remainin paramagnetic state in whole temperature range. Effect of Mo doping shows a structural change in lattice parameters while there is no change in electrical properties as well as in magnetic properties. Frequency dependent dielectric measurement has been done at room temperature.We have studied structural,magnetic and dielectric properties of Mo-doped ZnCu2Nb2O8 with Mo replacing Nb ion. Here we have prepared polycrystalline samples ZnCu2(Nb1-x Mox)2O8 with x=0.0 and 0.1. X-ray powder diffraction and allied Rietveldrefinement analysis have been used to analyze the structure of the samples. The ZnCu2Nb2O8 shows paramagnetic behavior in whole temperature range. In ZnCu2Nb2O8, Nb+2(S=0) is a non-magnetic site, we have tried to tune the non-magnetic site with magnetic Mo+2(S=1/2). With Mo substitution at Nb-site, magnetic moment decreases and the system remainin paramagnetic state in whole temperature range. Effect of Mo doping shows a structural change in lattice parameters while there is no change in electrical properties as well as in magnetic properties. Frequency dependent dielectric measurement has been done at room temperature.","PeriodicalId":7262,"journal":{"name":"ADVANCES IN BASIC SCIENCE (ICABS 2019)","volume":"160 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85408183","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In the present study, we have tried to characterize the inclusion complex of Hexaflumuron (HFM) with β-cyclodextrin (β-CD) using 1H & 19F NMR experiments. HFM is a pesticide (anti-termite) belonging to benzoylphenylurea family that contains three classes of fluorine. Its’ very low aqueous solubility can lead to facile accumulation in water or soil causing rapid poisoning of the environment. Therefore, elimination of HFM requires scavenging agents such as β-CD that can encapsulate HFM resulting in better aqueous solubility. A significant change in 19F and 1H NMR chemical shift, 1H & 19F longitudinal (T1) and 19F transverse relaxation (T2) time was observed for HFM in the presence of CD that confirms HFM-CD association. Jobs Plot demonstrated that β-CD was found to form 2:1 inclusion complex with HFM. Association constant was determined from chemical shift titration method using modified Benesi-Hildebrand plot. The present study for the first time provides an insight in understanding formulation of HFM in β-CD enhancingthe solubility giving rise to a possible soil remediation method.In the present study, we have tried to characterize the inclusion complex of Hexaflumuron (HFM) with β-cyclodextrin (β-CD) using 1H & 19F NMR experiments. HFM is a pesticide (anti-termite) belonging to benzoylphenylurea family that contains three classes of fluorine. Its’ very low aqueous solubility can lead to facile accumulation in water or soil causing rapid poisoning of the environment. Therefore, elimination of HFM requires scavenging agents such as β-CD that can encapsulate HFM resulting in better aqueous solubility. A significant change in 19F and 1H NMR chemical shift, 1H & 19F longitudinal (T1) and 19F transverse relaxation (T2) time was observed for HFM in the presence of CD that confirms HFM-CD association. Jobs Plot demonstrated that β-CD was found to form 2:1 inclusion complex with HFM. Association constant was determined from chemical shift titration method using modified Benesi-Hildebrand plot. The present study for the first time provides an insight in understanding formulation of HFM in β...
{"title":"Hexaflumuron_β-cyclodextrin inclusion complex as improved pesticide formulation: A NMR case study","authors":"Bhawna Chaubey, Samanwita Pal","doi":"10.1063/1.5122626","DOIUrl":"https://doi.org/10.1063/1.5122626","url":null,"abstract":"In the present study, we have tried to characterize the inclusion complex of Hexaflumuron (HFM) with β-cyclodextrin (β-CD) using 1H & 19F NMR experiments. HFM is a pesticide (anti-termite) belonging to benzoylphenylurea family that contains three classes of fluorine. Its’ very low aqueous solubility can lead to facile accumulation in water or soil causing rapid poisoning of the environment. Therefore, elimination of HFM requires scavenging agents such as β-CD that can encapsulate HFM resulting in better aqueous solubility. A significant change in 19F and 1H NMR chemical shift, 1H & 19F longitudinal (T1) and 19F transverse relaxation (T2) time was observed for HFM in the presence of CD that confirms HFM-CD association. Jobs Plot demonstrated that β-CD was found to form 2:1 inclusion complex with HFM. Association constant was determined from chemical shift titration method using modified Benesi-Hildebrand plot. The present study for the first time provides an insight in understanding formulation of HFM in β-CD enhancingthe solubility giving rise to a possible soil remediation method.In the present study, we have tried to characterize the inclusion complex of Hexaflumuron (HFM) with β-cyclodextrin (β-CD) using 1H & 19F NMR experiments. HFM is a pesticide (anti-termite) belonging to benzoylphenylurea family that contains three classes of fluorine. Its’ very low aqueous solubility can lead to facile accumulation in water or soil causing rapid poisoning of the environment. Therefore, elimination of HFM requires scavenging agents such as β-CD that can encapsulate HFM resulting in better aqueous solubility. A significant change in 19F and 1H NMR chemical shift, 1H & 19F longitudinal (T1) and 19F transverse relaxation (T2) time was observed for HFM in the presence of CD that confirms HFM-CD association. Jobs Plot demonstrated that β-CD was found to form 2:1 inclusion complex with HFM. Association constant was determined from chemical shift titration method using modified Benesi-Hildebrand plot. The present study for the first time provides an insight in understanding formulation of HFM in β...","PeriodicalId":7262,"journal":{"name":"ADVANCES IN BASIC SCIENCE (ICABS 2019)","volume":"68 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82841712","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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