Vishwas Acharya, A. Sharma, S. Jangu, Prakash Singh
We describe the fabrication and device characterization of PBZ/IZO/PBS heterojunction photo transistor by using dielectric properties of lead barium zirconate (PBZ) thin film through solution processed. PBZ thin film is fabricated by low cost sol-gel process on heavily doped Si-substrate (p++-Si). Solution processed IZO used as a channel semiconductor for bottom gate top contact geometry of TFT. The fabricated device require <5V operating voltage to saturate with high drain current which is very beneficial for low-power electronics. Metal oxide/quantum dot heterojunction phototransistor was fabricated by coating IZO TFT with colloidal lead sulphide (PbS) quantum dot that shows the responsivity and the response time of 3 × 10−4 A/W and 2 sec respectively.
{"title":"Solution processed Pb0.8Ba0.2ZrO3 (lead barium zirconate) dielectric for photo transistor fabrication","authors":"Vishwas Acharya, A. Sharma, S. Jangu, Prakash Singh","doi":"10.1063/5.0061324","DOIUrl":"https://doi.org/10.1063/5.0061324","url":null,"abstract":"We describe the fabrication and device characterization of PBZ/IZO/PBS heterojunction photo transistor by using dielectric properties of lead barium zirconate (PBZ) thin film through solution processed. PBZ thin film is fabricated by low cost sol-gel process on heavily doped Si-substrate (p++-Si). Solution processed IZO used as a channel semiconductor for bottom gate top contact geometry of TFT. The fabricated device require <5V operating voltage to saturate with high drain current which is very beneficial for low-power electronics. Metal oxide/quantum dot heterojunction phototransistor was fabricated by coating IZO TFT with colloidal lead sulphide (PbS) quantum dot that shows the responsivity and the response time of 3 × 10−4 A/W and 2 sec respectively.","PeriodicalId":18837,"journal":{"name":"NATIONAL CONFERENCE ON PHYSICS AND CHEMISTRY OF MATERIALS: NCPCM2020","volume":"118 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80281473","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}
Naseem Fatima, Y. Nadaf, P. Ramesh, A. Pramod, G. Jagannath
Nonlinear optical and optical limiting attributes are evaluated at 532 nm using nanosecond laser pulses. The nonlinear coefficients such as nonlinear absorption and nonlinear refractive index values are increased with increase in AgNO3 concertation while the optical limiting threshold values showed a reverse trend. The increase in nonlinear optical properties in studied glasses with the Ag nanoparticles number density attributed to the local field effect stimulated by surface plasmon resonance of Ag nanoparticles when glasses are exposed to high energy radiation. The increase in nonlinear absorption and decrease in optical limiting threshold coefficients with AgNO3 concertation suggest the glasses containing high concentration of Ag nanoparticles are useful for designing the power optical limiters for functioning at the visible region under nanosecond regime.
{"title":"Nanosecond nonlinear optical and optical limiting properties of Eu3+ activated borate glasses embedded with silver nanoparticles","authors":"Naseem Fatima, Y. Nadaf, P. Ramesh, A. Pramod, G. Jagannath","doi":"10.1063/5.0061497","DOIUrl":"https://doi.org/10.1063/5.0061497","url":null,"abstract":"Nonlinear optical and optical limiting attributes are evaluated at 532 nm using nanosecond laser pulses. The nonlinear coefficients such as nonlinear absorption and nonlinear refractive index values are increased with increase in AgNO3 concertation while the optical limiting threshold values showed a reverse trend. The increase in nonlinear optical properties in studied glasses with the Ag nanoparticles number density attributed to the local field effect stimulated by surface plasmon resonance of Ag nanoparticles when glasses are exposed to high energy radiation. The increase in nonlinear absorption and decrease in optical limiting threshold coefficients with AgNO3 concertation suggest the glasses containing high concentration of Ag nanoparticles are useful for designing the power optical limiters for functioning at the visible region under nanosecond regime.","PeriodicalId":18837,"journal":{"name":"NATIONAL CONFERENCE ON PHYSICS AND CHEMISTRY OF MATERIALS: NCPCM2020","volume":"54 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76005179","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, Sewage sludge (STP) was used to develop an effective adsorbent and investigations were carried out for removal of malachite green dye from wastewater. The developed adsorbent was characterized using various techniques such as XRF, FTIR and SEM. Batch studies were carried out for optimization of parameters like contact time, reaction temperature, pH, adsorbent dose and adsorbate concentration. Adsorption data were also correlated with Langmuir, Freundlich, Temkin and Dubinin isotherm models. The Pseudo-first-order, Pseudo-second-order, Intra-particle diffusion and Elovich models were used to describe the adsorption kinetics. The results of batch studies revealed that removal efficiency was 95.7% at optimum experimental conditions of pH 6.0, contact time 120 min, Malachite green dye concentration 10 mg/L and adsorbent dose 10g/L. The results also showed that adsorption increased with an increase in temperature thereby showing the process endothermic in nature. The Freundlich adsorption model and Pseudo-second order kinetics were found to have the highest regression value and hence the fitted well. The results indicated that the sewage sludge could be employed as a low-cost adsorbent for the removal of Malachite green dye from wastewater.
{"title":"Process development for the removal of malachite Green dye from wastewater using sewage sludge (STP) as an adsorbent","authors":"P. Shrivastava, M. Dwivedi, V. Malviya, P. Jain","doi":"10.1063/5.0061212","DOIUrl":"https://doi.org/10.1063/5.0061212","url":null,"abstract":"In the present study, Sewage sludge (STP) was used to develop an effective adsorbent and investigations were carried out for removal of malachite green dye from wastewater. The developed adsorbent was characterized using various techniques such as XRF, FTIR and SEM. Batch studies were carried out for optimization of parameters like contact time, reaction temperature, pH, adsorbent dose and adsorbate concentration. Adsorption data were also correlated with Langmuir, Freundlich, Temkin and Dubinin isotherm models. The Pseudo-first-order, Pseudo-second-order, Intra-particle diffusion and Elovich models were used to describe the adsorption kinetics. The results of batch studies revealed that removal efficiency was 95.7% at optimum experimental conditions of pH 6.0, contact time 120 min, Malachite green dye concentration 10 mg/L and adsorbent dose 10g/L. The results also showed that adsorption increased with an increase in temperature thereby showing the process endothermic in nature. The Freundlich adsorption model and Pseudo-second order kinetics were found to have the highest regression value and hence the fitted well. The results indicated that the sewage sludge could be employed as a low-cost adsorbent for the removal of Malachite green dye from wastewater.","PeriodicalId":18837,"journal":{"name":"NATIONAL CONFERENCE ON PHYSICS AND CHEMISTRY OF MATERIALS: NCPCM2020","volume":"32 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76437105","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. R. Yaul, A. A. Ramteke, J. T. Makode, N. Salunkhe, A. Yaul
Four unsymmetrical Schiff base metal complexes, [Ti(L)(Cl)(H2O)], [Cr(L)(Cl)(H2O)], [MoO2(L)].H2O and [WO2(L)].H2O (L=4-hydroxy-3-(1-(2-(1-(2-hydroxy-5-methylphenyl)ethylideneamino)cyclohexylimino)ethyl)-6-methyl-2H-pyran-2-one) have been synthesized and characterized by their elemental analyses, magnetic susceptibility, thermogravimetric analysis, molar conductance, infrared (IR) and electronic spectral measurements. The purity of the ligand and its metal complexes are confirmed by microanalysis, while the unsymmetrical nature of the ligand was confirmed on the basis of 1H-NMR & 13C-NMR spectroscopy. Comparison of the IR spectra of the Schiff base ligand and its metal complexes confirm that the Schiff base behaves as tetradentate and coordinated via N2O2 chromophore. The ligand and its metal complexes were screened for antimicrobial activities against E. coli MTCC 443, P. aeruginosa MTCC 424 and S. aureus MTCC 96 and fungal strains, C. albicans MTCC 227 and A. niger MTCC 282. The activity data show that the complexes are more potent antimicrobials than the parent ligand.
{"title":"Microwave-assisted synthesis, spectroscopic properties, thermal behaviour and antimicrobial activity of unsymmetrical Schiff base complexes of Ti(III), Cr(III), MoO2(VI) and WO2(VI)","authors":"S. R. Yaul, A. A. Ramteke, J. T. Makode, N. Salunkhe, A. Yaul","doi":"10.1063/5.0061307","DOIUrl":"https://doi.org/10.1063/5.0061307","url":null,"abstract":"Four unsymmetrical Schiff base metal complexes, [Ti(L)(Cl)(H2O)], [Cr(L)(Cl)(H2O)], [MoO2(L)].H2O and [WO2(L)].H2O (L=4-hydroxy-3-(1-(2-(1-(2-hydroxy-5-methylphenyl)ethylideneamino)cyclohexylimino)ethyl)-6-methyl-2H-pyran-2-one) have been synthesized and characterized by their elemental analyses, magnetic susceptibility, thermogravimetric analysis, molar conductance, infrared (IR) and electronic spectral measurements. The purity of the ligand and its metal complexes are confirmed by microanalysis, while the unsymmetrical nature of the ligand was confirmed on the basis of 1H-NMR & 13C-NMR spectroscopy. Comparison of the IR spectra of the Schiff base ligand and its metal complexes confirm that the Schiff base behaves as tetradentate and coordinated via N2O2 chromophore. The ligand and its metal complexes were screened for antimicrobial activities against E. coli MTCC 443, P. aeruginosa MTCC 424 and S. aureus MTCC 96 and fungal strains, C. albicans MTCC 227 and A. niger MTCC 282. The activity data show that the complexes are more potent antimicrobials than the parent ligand.","PeriodicalId":18837,"journal":{"name":"NATIONAL CONFERENCE ON PHYSICS AND CHEMISTRY OF MATERIALS: NCPCM2020","volume":"3 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78387950","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 paper the study on the Copper-Cobalt ferrites with the general formulae CuxCo(1-x)Fe2O4 (where x=0.45,0.50,0.55,0.60) has been carried out . Solid root method was used to prepare the samples. X-ray diffraction (XRD) technique is used to analyze the samples. X-ray diffraction measurements were carried out .XRD investigation of all the compositions confirm the formation of single phase and tetragonal structure of ferrites .The particle size was calculated with the help of Debye Scherer's formulae using characteristics peaks.
{"title":"X-ray diffraction analysis on copper-cobalt ferrites","authors":"Harish Sharma, B. Mishra, P. Sharma","doi":"10.1063/5.0061267","DOIUrl":"https://doi.org/10.1063/5.0061267","url":null,"abstract":"In the present paper the study on the Copper-Cobalt ferrites with the general formulae CuxCo(1-x)Fe2O4 (where x=0.45,0.50,0.55,0.60) has been carried out . Solid root method was used to prepare the samples. X-ray diffraction (XRD) technique is used to analyze the samples. X-ray diffraction measurements were carried out .XRD investigation of all the compositions confirm the formation of single phase and tetragonal structure of ferrites .The particle size was calculated with the help of Debye Scherer's formulae using characteristics peaks.","PeriodicalId":18837,"journal":{"name":"NATIONAL CONFERENCE ON PHYSICS AND CHEMISTRY OF MATERIALS: NCPCM2020","volume":"14 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74263487","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 this work, methyl ammonium lead iodide (CH3NH3PbI3) thin films were deposited using spin-coating method. The thin films were investigated as a function of different thermal annealing temperatures with time being constant and as a function of time with constant temperature. The compositional and structural analyses have been studied by EDXRF and XRD respectively. The optical and chemical properties were also studied using UV-Vis spectrophotometer and FTIR spectroscopy. The characterization result shows the change in its properties with increase in temperature and time. From the XRD data, it can be observed that with an increase in temperature, the CH3NH3PbI3 decomposes to PbI2, and with an increase in annealing time, the CH3NH3PbI3 peaks show degradation. A basic comparison has been made in order to study the effect of annealing on the CH3NH3PbI3 thin films.
{"title":"Post annealing effects of perovskite (CH3NH3PbI3) thin films for solar cell applications","authors":"I. Mohanty, S. Mangal, S. Jana, U. Singh","doi":"10.1063/5.0061270","DOIUrl":"https://doi.org/10.1063/5.0061270","url":null,"abstract":"In this work, methyl ammonium lead iodide (CH3NH3PbI3) thin films were deposited using spin-coating method. The thin films were investigated as a function of different thermal annealing temperatures with time being constant and as a function of time with constant temperature. The compositional and structural analyses have been studied by EDXRF and XRD respectively. The optical and chemical properties were also studied using UV-Vis spectrophotometer and FTIR spectroscopy. The characterization result shows the change in its properties with increase in temperature and time. From the XRD data, it can be observed that with an increase in temperature, the CH3NH3PbI3 decomposes to PbI2, and with an increase in annealing time, the CH3NH3PbI3 peaks show degradation. A basic comparison has been made in order to study the effect of annealing on the CH3NH3PbI3 thin films.","PeriodicalId":18837,"journal":{"name":"NATIONAL CONFERENCE ON PHYSICS AND CHEMISTRY OF MATERIALS: NCPCM2020","volume":"12 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78659974","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 PV cell connected in series experience several addressable problems which reduce the efficiency of power output in the solar system. Some of the serious issues are mismatching, shading issues, generation of ‘hot spot’, dust, and obstacles over the panel, solar charge controller design. This problem of overall decreased output power could be improved by introducing the converter design technique of differential power processing. DPP architecture achieves high system efficiency by processing the fraction of total power. This report is mainly focused on the home rooftop solar panel requirements, irradiance obstacles on the solar panel, factors affecting the efficiency of the solar panel system, and converter design for wearable PV application. PV cells can be used for wearable PV applications where fluctuation in illumination is observed. With the help of DPP technique, the MPPT for each cell is traced and the cell operates around that point. The DPP converter design is controlled with the help of the DC-DC controller design which is discussed in the report.
{"title":"Hot spots, MPPT technology and the differential power processing (DPP) for wearable PV applications","authors":"R. D. Shengule","doi":"10.1063/5.0061031","DOIUrl":"https://doi.org/10.1063/5.0061031","url":null,"abstract":"The PV cell connected in series experience several addressable problems which reduce the efficiency of power output in the solar system. Some of the serious issues are mismatching, shading issues, generation of ‘hot spot’, dust, and obstacles over the panel, solar charge controller design. This problem of overall decreased output power could be improved by introducing the converter design technique of differential power processing. DPP architecture achieves high system efficiency by processing the fraction of total power. This report is mainly focused on the home rooftop solar panel requirements, irradiance obstacles on the solar panel, factors affecting the efficiency of the solar panel system, and converter design for wearable PV application. PV cells can be used for wearable PV applications where fluctuation in illumination is observed. With the help of DPP technique, the MPPT for each cell is traced and the cell operates around that point. The DPP converter design is controlled with the help of the DC-DC controller design which is discussed in the report.","PeriodicalId":18837,"journal":{"name":"NATIONAL CONFERENCE ON PHYSICS AND CHEMISTRY OF MATERIALS: NCPCM2020","volume":"17 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85551711","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 composite of the formula (0.75) Cu0.5Zn0.5Fe2O4 + (0.25) BaZr0.5Ti0.5O3 has been discussed in this report. The structural studies were carried out using via X-ray diffraction technique and temperature dependent dielectric properties were examined at a constant field value of 500Hz. The X-ray diffraction data analysis reveal the presence of both the constituent phases. The ferrite Cu0.5Zn0.5Fe2O4 phase has attained cubic structure having space group Fd-3m and BaZr0.5Ti0.5O3 has acquired hexagonal crystal structure with space group P 63/m m c. The morphological and compositional studies were carried out. The as synthesized composite sample was studied for dielectric nature as a function of temperature (120K-320K) at a field of 500Hz. The dielectric constant was observed to initially increasing slowly but as the temperature enhances, dielectric constant increases rapidly near room temperature. Dielectric loss follows same trend with two humps corresponding to the two phases of the composite. The ac conductivity was observed low in the low temperature range and become higher in the extended temperature values.
本文讨论了(0.75)Cu0.5Zn0.5Fe2O4 + (0.25) BaZr0.5Ti0.5O3的复合配方。使用x射线衍射技术进行了结构研究，并在恒定场值500Hz下检测了温度相关的介电特性。x射线衍射数据分析显示了两种组成相的存在。铁素体Cu0.5Zn0.5Fe2O4获得了空间群为Fd-3m的立方结构，BaZr0.5Ti0.5O3获得了空间群为p63 /m - m - c的六方晶体结构。在500Hz的电场下，研究了合成的复合材料的介电性质随温度(120K-320K)的变化规律。在室温附近，介电常数开始缓慢增加，但随着温度的升高，介电常数迅速增加。复合材料的两相对应的介质损耗呈两个峰状分布。在低温范围内观察到交流电导率较低，在扩展温度值时变高。
{"title":"Dielectric studies of (0.75) Cu0.5Zn0.5Fe2O4 + (0.25) BaZr0.5Ti0.5O3 composite","authors":"V. Tandon, M. Saleem, N. Kaurav, RC Dixit","doi":"10.1063/5.0061037","DOIUrl":"https://doi.org/10.1063/5.0061037","url":null,"abstract":"The composite of the formula (0.75) Cu0.5Zn0.5Fe2O4 + (0.25) BaZr0.5Ti0.5O3 has been discussed in this report. The structural studies were carried out using via X-ray diffraction technique and temperature dependent dielectric properties were examined at a constant field value of 500Hz. The X-ray diffraction data analysis reveal the presence of both the constituent phases. The ferrite Cu0.5Zn0.5Fe2O4 phase has attained cubic structure having space group Fd-3m and BaZr0.5Ti0.5O3 has acquired hexagonal crystal structure with space group P 63/m m c. The morphological and compositional studies were carried out. The as synthesized composite sample was studied for dielectric nature as a function of temperature (120K-320K) at a field of 500Hz. The dielectric constant was observed to initially increasing slowly but as the temperature enhances, dielectric constant increases rapidly near room temperature. Dielectric loss follows same trend with two humps corresponding to the two phases of the composite. The ac conductivity was observed low in the low temperature range and become higher in the extended temperature values.","PeriodicalId":18837,"journal":{"name":"NATIONAL CONFERENCE ON PHYSICS AND CHEMISTRY OF MATERIALS: NCPCM2020","volume":"117 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88704914","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}
At present many plasticity problems do not have a reliable solution. It is connected to the fact that in the theoretical calculations, based on the classical plasticity theories, a complexity of the process of loading of body is not considered. Sometimes this leads to significant errors. For plasticity with scleronome constraints (metals, alloys, etc.) at isothermal processes the functionals that were described of loading process do not depend on time. However the functionals in constitutive relations in plasticity should be also dependent on loading history. At practice, they can be found for some classes of complex loading processes experimentally. Some fundamental properties of functionals via experimental investigations of materials are presented here.
{"title":"On metals’ properties manifested under complex loading","authors":"R. Abirov","doi":"10.1063/5.0060895","DOIUrl":"https://doi.org/10.1063/5.0060895","url":null,"abstract":"At present many plasticity problems do not have a reliable solution. It is connected to the fact that in the theoretical calculations, based on the classical plasticity theories, a complexity of the process of loading of body is not considered. Sometimes this leads to significant errors. For plasticity with scleronome constraints (metals, alloys, etc.) at isothermal processes the functionals that were described of loading process do not depend on time. However the functionals in constitutive relations in plasticity should be also dependent on loading history. At practice, they can be found for some classes of complex loading processes experimentally. Some fundamental properties of functionals via experimental investigations of materials are presented here.","PeriodicalId":18837,"journal":{"name":"NATIONAL CONFERENCE ON PHYSICS AND CHEMISTRY OF MATERIALS: NCPCM2020","volume":"141 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85341559","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}
Reval Singh Kharat, M. Saleem, N. Kaurav, H. Dagar
The composites of the form 0.5ZFO + 0.4BFO + 0.1GFO (S1) and 0.75ZFO + 0.2BFO + 0.05GFO (S2) and synthesized by solid state route are reported in this study. These composites were subjected to structural, energy bandgap and dielectric studies. The XRD spectral analysis confirms that all the three phases are present in the samples under study. The BiFeO3 phase has acquired orthorhombic (Pnma) crystal structure, ZnFe2O4 has crystallized into cubic (Fd-3m) structure where GaFeO3 exhibited trigonal (R3c) structure. Diffuse reflectance spectral study conveys the sample to possess wide energy bandgap ≈2eV. The dielectric studies reveals the samples are extremely good dielectric materials with average dielectric constant, low loss value and relatively low decreasing rate with respect to applied field for both features.
{"title":"A study of structural, optical and electrical studies of the composites of ZnFe2O4, BiFeO3 and GaFeO3 compounds","authors":"Reval Singh Kharat, M. Saleem, N. Kaurav, H. Dagar","doi":"10.1063/5.0061846","DOIUrl":"https://doi.org/10.1063/5.0061846","url":null,"abstract":"The composites of the form 0.5ZFO + 0.4BFO + 0.1GFO (S1) and 0.75ZFO + 0.2BFO + 0.05GFO (S2) and synthesized by solid state route are reported in this study. These composites were subjected to structural, energy bandgap and dielectric studies. The XRD spectral analysis confirms that all the three phases are present in the samples under study. The BiFeO3 phase has acquired orthorhombic (Pnma) crystal structure, ZnFe2O4 has crystallized into cubic (Fd-3m) structure where GaFeO3 exhibited trigonal (R3c) structure. Diffuse reflectance spectral study conveys the sample to possess wide energy bandgap ≈2eV. The dielectric studies reveals the samples are extremely good dielectric materials with average dielectric constant, low loss value and relatively low decreasing rate with respect to applied field for both features.","PeriodicalId":18837,"journal":{"name":"NATIONAL CONFERENCE ON PHYSICS AND CHEMISTRY OF MATERIALS: NCPCM2020","volume":"110 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87654067","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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