We have developed multiferroic Bismuth ferrite (BiFeO3, BFO) incorporated Poly (vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) polymer-ceramic composites through solution casting method. The polymer-ceramic composites are fabricated by varying the composition of the BFO as a filler material ranging 5, 10, 15, 20, 25, 30, and 40 wt% into the PVDF-HFP polymer matrix. We have investigated the effect of BFO loading on the structural, morphological, spectroscopic, and dielectric properties by different characterization techniques. X-ray diffraction analysis indicates the presence of non-polar α- and polar β- phases of PVDF-HFP in the composites. Scanning electron microscope studies revealed the spherulite morphology and homogenous dispersion of BFO particles. The addition of BFO filler in PVDF-HFP matrix at various percentages has been studied to improve the polar -phase of PVDF-HFP which may enhance ferroelectric properties. The dielectric studies at room temperature showed an increase in dielectric constant value from 9.5 (pure PVDF-HFP) to 21.08 (30% loaded BFO) at 100Hz. It is also evident from the Fourier Transform- Infrared (FT-IR) spectra, that a maximum of 75.24% of β-fraction is observed for 30% loaded BFO composition. The enhanced properties of the fabricated materials suggest that they may be useful for polymer-ceramic capacitor applications. The results are discussed in detail.
{"title":"Enhanced Dielectric Constant of PVDF-HFP/BFO Composite Films for Ferroelectric Applications","authors":"Himanandini Gunti, Venkata Sreenivas Puli, Narendra Babu Simhachalam","doi":"10.1149/2162-8777/ad3d88","DOIUrl":"https://doi.org/10.1149/2162-8777/ad3d88","url":null,"abstract":"\u0000 We have developed multiferroic Bismuth ferrite (BiFeO3, BFO) incorporated Poly (vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) polymer-ceramic composites through solution casting method. The polymer-ceramic composites are fabricated by varying the composition of the BFO as a filler material ranging 5, 10, 15, 20, 25, 30, and 40 wt% into the PVDF-HFP polymer matrix. We have investigated the effect of BFO loading on the structural, morphological, spectroscopic, and dielectric properties by different characterization techniques. X-ray diffraction analysis indicates the presence of non-polar α- and polar β- phases of PVDF-HFP in the composites. Scanning electron microscope studies revealed the spherulite morphology and homogenous dispersion of BFO particles. The addition of BFO filler in PVDF-HFP matrix at various percentages has been studied to improve the polar -phase of PVDF-HFP which may enhance ferroelectric properties. The dielectric studies at room temperature showed an increase in dielectric constant value from 9.5 (pure PVDF-HFP) to 21.08 (30% loaded BFO) at 100Hz. It is also evident from the Fourier Transform- Infrared (FT-IR) spectra, that a maximum of 75.24% of β-fraction is observed for 30% loaded BFO composition. The enhanced properties of the fabricated materials suggest that they may be useful for polymer-ceramic capacitor applications. The results are discussed in detail.","PeriodicalId":504734,"journal":{"name":"ECS Journal of Solid State Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140713759","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}
Pub Date : 2024-04-11DOI: 10.1149/2162-8777/ad3d87
Jagram Anterbedy, Naresh Pallati, Aravind Seema, Rajesh Alukucha, G. Thalari
An Li2O-incorporated bioactive glass system of chemical composition xLi2O-10BaO-10ZnO-(80-x)B2O3 with x=0-20mol% was synthesized by melt-quench route. Non-crystalline behaviour was confirmed with X-ray diffraction spectra. The antibacterial zone of inhibitions increased with Li2O incorporation. Experimental densities increased with Li2O molar content and molar volume decreased. UV-Optical absorption spectra confirmed a cut-off wave length (λc) increasing trend by NBOs. Indirect band gap decreased, direct band gap decreased, and Urbach energy increased with Li2O addition. The refractive index of the glass system also increased. Fourier transform infrared and Raman spectroscopy studies confirmed the structural variations and existence of metal-oxides in the glass matrix. The AC conductivity increased with frequency, temperature, and also Li2O content by almost three orders of magnitude. The findings of higher order conductivity (10-3Ω-1cm-1), improvement in the zone of inhibitions upto 15 mm against E.Coli., and 14 mm against Salmonella; higher value of refractive index (n>2) confirms the multiple applications of these glasses.
{"title":"Antibacterial, Optical, Structural, and AC Conductivity Characteristics of Lithium-Doped Barium Zinc Borate Glasses for Multiple Applications","authors":"Jagram Anterbedy, Naresh Pallati, Aravind Seema, Rajesh Alukucha, G. Thalari","doi":"10.1149/2162-8777/ad3d87","DOIUrl":"https://doi.org/10.1149/2162-8777/ad3d87","url":null,"abstract":"\u0000 An Li2O-incorporated bioactive glass system of chemical composition xLi2O-10BaO-10ZnO-(80-x)B2O3 with x=0-20mol% was synthesized by melt-quench route. Non-crystalline behaviour was confirmed with X-ray diffraction spectra. The antibacterial zone of inhibitions increased with Li2O incorporation. Experimental densities increased with Li2O molar content and molar volume decreased. UV-Optical absorption spectra confirmed a cut-off wave length (λc) increasing trend by NBOs. Indirect band gap decreased, direct band gap decreased, and Urbach energy increased with Li2O addition. The refractive index of the glass system also increased. Fourier transform infrared and Raman spectroscopy studies confirmed the structural variations and existence of metal-oxides in the glass matrix. The AC conductivity increased with frequency, temperature, and also Li2O content by almost three orders of magnitude. The findings of higher order conductivity (10-3Ω-1cm-1), improvement in the zone of inhibitions upto 15 mm against E.Coli., and 14 mm against Salmonella; higher value of refractive index (n>2) confirms the multiple applications of these glasses.","PeriodicalId":504734,"journal":{"name":"ECS Journal of Solid State Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140714903","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}
Pub Date : 2024-04-11DOI: 10.1149/2162-8777/ad3d85
G. Nasretdinova, R. R. Fazleeva, A. Yanilkin, A. Gubaidullin, E. Mansurova, A. Ziganshina, V. Yanilkin
The result of cyclobis(paraquat-p-phenylene) (CBPQT4+) –mediated reduction of gold ions generated by anodic oxidation of metallic gold in MeCN (50% vol.) – H2O/0.05 M Bu4NCl medium in the absence and presence of such stabilizers as cetyltrimethylammonium chloride and polyvinylpyrrolidone is polydisperse aggregated composite nanoparticles with sizes ranging from several nm to 100 nm or more. The resulting AuNP@(CBPQT4+)n nanocomposite is a gold nanoparticle encapsulated in a shell of macrocycle molecules. CBPQT4+ is bound to the surface of the gold nanoparticle by donor-acceptor interactions between the electron-withdrawing viologen units and the electron-donating metal particle. Theoretical calculations suggest that the cavity of the bound macrocycle is not empty, but filled with 10-12 gold atoms. CBPQT4+ presumably forms a monomolecular layer on the metal surface, and its excess amount is involved in the aggregation and sedimentation of the nanocomposites. The encapsulation of AuNPs in the macrocyclic shell is the main reason for the suppression of the metal catalytic activity in the test reaction of p-nitrophenol reduction with sodium borohydride.
{"title":"Mediated Electrosynthesis of Nanocomposites of Gold Nanoparticles with Cyclobis(paraquat-p-phenylene)","authors":"G. Nasretdinova, R. R. Fazleeva, A. Yanilkin, A. Gubaidullin, E. Mansurova, A. Ziganshina, V. Yanilkin","doi":"10.1149/2162-8777/ad3d85","DOIUrl":"https://doi.org/10.1149/2162-8777/ad3d85","url":null,"abstract":"\u0000 The result of cyclobis(paraquat-p-phenylene) (CBPQT4+) –mediated reduction of gold ions generated by anodic oxidation of metallic gold in MeCN (50% vol.) – H2O/0.05 M Bu4NCl medium in the absence and presence of such stabilizers as cetyltrimethylammonium chloride and polyvinylpyrrolidone is polydisperse aggregated composite nanoparticles with sizes ranging from several nm to 100 nm or more. The resulting AuNP@(CBPQT4+)n nanocomposite is a gold nanoparticle encapsulated in a shell of macrocycle molecules. CBPQT4+ is bound to the surface of the gold nanoparticle by donor-acceptor interactions between the electron-withdrawing viologen units and the electron-donating metal particle. Theoretical calculations suggest that the cavity of the bound macrocycle is not empty, but filled with 10-12 gold atoms. CBPQT4+ presumably forms a monomolecular layer on the metal surface, and its excess amount is involved in the aggregation and sedimentation of the nanocomposites. The encapsulation of AuNPs in the macrocyclic shell is the main reason for the suppression of the metal catalytic activity in the test reaction of p-nitrophenol reduction with sodium borohydride.","PeriodicalId":504734,"journal":{"name":"ECS Journal of Solid State Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140716396","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}
Pub Date : 2024-04-10DOI: 10.1149/2162-8777/ad3d0a
Bakr Ahmed Taha, Vishal Chaudhary, Sarvesh Rustagi, S. Sonu, Pardeep Singh
Early diagnosis through noninvasive tools is a cornerstone in the realm of personalized and medical healthcare, averting direct/indirect infection transmission and directly influencing treatment outcomes and patient survival rates. In this context, optical biochip breathomic sensors integrated with nanomaterials, microfluidics, and artificial intelligence exhibit the potential to design next-generation intelligent diagnostics. This cutting-edge tool offers a variety of advantages, including being economical, compact, smart, point of care, highly sensitive, and noninvasive. This makes it an ideal avenue for screening, diagnosing, and prognosing various high-risk diseases/disorders by detecting the associated breath biomarkers. The underlying detection mechanism relies on the interaction of breath biomarkers with sensors, which causes modulations in fundamental optical attributes, such as surface plasmon resonance, fluorescence, reflectance, absorption, emission, phosphorescence, and refractive index. Despite these remarkable attributes, the commercial development of optical biochip breathomic sensors faces challenges, such as insufficient support from clinical trials, concerns about cross-sensitivity, challenges related to production scalability, validation issues, regulatory compliance, and contrasts with conventional diagnostics. This perspective article sheds light on the cutting-edge state of optical breathomic biochip sensors for disease diagnosis, addresses associated challenges, proposes alternative solutions, and explores future avenues to revolutionize personalized and medical healthcare diagnostics.
{"title":"Fate of Sniff-the-Diseases through Nanomaterials-supported Optical Biochip Sensors","authors":"Bakr Ahmed Taha, Vishal Chaudhary, Sarvesh Rustagi, S. Sonu, Pardeep Singh","doi":"10.1149/2162-8777/ad3d0a","DOIUrl":"https://doi.org/10.1149/2162-8777/ad3d0a","url":null,"abstract":"\u0000 Early diagnosis through noninvasive tools is a cornerstone in the realm of personalized and medical healthcare, averting direct/indirect infection transmission and directly influencing treatment outcomes and patient survival rates. In this context, optical biochip breathomic sensors integrated with nanomaterials, microfluidics, and artificial intelligence exhibit the potential to design next-generation intelligent diagnostics. This cutting-edge tool offers a variety of advantages, including being economical, compact, smart, point of care, highly sensitive, and noninvasive. This makes it an ideal avenue for screening, diagnosing, and prognosing various high-risk diseases/disorders by detecting the associated breath biomarkers. The underlying detection mechanism relies on the interaction of breath biomarkers with sensors, which causes modulations in fundamental optical attributes, such as surface plasmon resonance, fluorescence, reflectance, absorption, emission, phosphorescence, and refractive index. Despite these remarkable attributes, the commercial development of optical biochip breathomic sensors faces challenges, such as insufficient support from clinical trials, concerns about cross-sensitivity, challenges related to production scalability, validation issues, regulatory compliance, and contrasts with conventional diagnostics. This perspective article sheds light on the cutting-edge state of optical breathomic biochip sensors for disease diagnosis, addresses associated challenges, proposes alternative solutions, and explores future avenues to revolutionize personalized and medical healthcare diagnostics.","PeriodicalId":504734,"journal":{"name":"ECS Journal of Solid State Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140717486","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}
Pub Date : 2024-04-10DOI: 10.1149/2162-8777/ad3d08
Husam Nahedh, O. Salman, Mukhlis M Ismail
The hydrothermal method successfully prepares a lead-free sodium bismuth titanate (NBT) perovskite film. The prepared films were studied structurally, and morphologically using X-ray diffraction, and field-emission scanning electron microscopy (FESEM), respectively. Varying the concentration of NaOH showed a noticeable effect on the properties studied. Good crystallization of NBT perovskite films without impurities was obtained at 18 and 20 M concentrations, where the crystalline size was 14 nm according to the Scherer equation. Also, when varying the concentration of NaOH, a similar film thickness was obtained through a cross-section of the FESEM images. It was observed that there was a difference in the intensity of the peaks of the photoluminescence spectra of the prepared films with a change in the concentration of NaOH, which confirms a change in the concentration of oxygen vacancies. The activation energy of the prepared films was deduced from the Arrhenius plot, as it showed small values in the films prepared with a low concentration of NaOH. The results showed that the maximum value of mobility of NBT films was at 20 M of NaOH concentration through the Hall Effect.
水热法成功制备了无铅钛酸铋钠（NBT）包晶薄膜。利用 X 射线衍射和场发射扫描电子显微镜（FESEM）分别对制备的薄膜进行了结构和形貌研究。不同浓度的 NaOH 对所研究的特性有明显的影响。无杂质的 NBT 包晶石薄膜在 18 M 和 20 M 浓度下结晶良好，根据舍勒方程，结晶尺寸为 14 nm。此外，当改变 NaOH 的浓度时，通过 FESEM 图像的横截面可以获得相似的薄膜厚度。据观察，随着 NaOH 浓度的变化，所制备薄膜的光致发光光谱峰的强度也不同，这证实了氧空位浓度的变化。根据阿伦尼乌斯图推断出了所制备薄膜的活化能，因为用低浓度 NaOH 制备的薄膜的活化能值较小。结果表明，通过霍尔效应，NBT 薄膜的迁移率在 NaOH 浓度为 20 M 时达到最大值。
{"title":"Influence of NaOH Concentration on Structural, Morphological, Optical, and Electrical Characterization of Perovskite Sodium Bismuth Titanate Prepared by Hydrothermal Method.","authors":"Husam Nahedh, O. Salman, Mukhlis M Ismail","doi":"10.1149/2162-8777/ad3d08","DOIUrl":"https://doi.org/10.1149/2162-8777/ad3d08","url":null,"abstract":"\u0000 The hydrothermal method successfully prepares a lead-free sodium bismuth titanate (NBT) perovskite film. The prepared films were studied structurally, and morphologically using X-ray diffraction, and field-emission scanning electron microscopy (FESEM), respectively. Varying the concentration of NaOH showed a noticeable effect on the properties studied. Good crystallization of NBT perovskite films without impurities was obtained at 18 and 20 M concentrations, where the crystalline size was 14 nm according to the Scherer equation. Also, when varying the concentration of NaOH, a similar film thickness was obtained through a cross-section of the FESEM images. It was observed that there was a difference in the intensity of the peaks of the photoluminescence spectra of the prepared films with a change in the concentration of NaOH, which confirms a change in the concentration of oxygen vacancies. The activation energy of the prepared films was deduced from the Arrhenius plot, as it showed small values in the films prepared with a low concentration of NaOH. The results showed that the maximum value of mobility of NBT films was at 20 M of NaOH concentration through the Hall Effect.","PeriodicalId":504734,"journal":{"name":"ECS Journal of Solid State Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140716947","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}
Pub Date : 2024-04-10DOI: 10.1149/2162-8777/ad3d09
Zetao Shen, Qiang‐Qiang Zhu, Rundong Tian, Guimin Guo, Rongjun Xie, Le Wang
The performance of laser-driven white light can vary significantly depending on the excitation mode. To attain desirable application performance of color converters in laser lighting, the excitation mode must be selected carefully. In this work, to understand the effect of the excitation mode on the performance of color converters, a detailed study was conducted on the heat dispersion, luminescence, and color quality of Al2O3-YAG:Ce phosphor ceramics in both transmissive and reflective modes. The relationship between ceramic porosity and scattering performance has also been analyzed by studying the beam expansion ratio. The results demonstrate that the phosphor ceramics in reflective mode exhibit superior heat dissipation capabilities and can withstand higher power laser excitation compared to the transmissive mode, while the light uniformity is relatively poorer due to the specular reflection. Therefore, in situations where a uniform light is not necessary, reflective color converters are more suitable for achieving superior luminance and luminous efficacy. Finally, a laser-driven white light device with a luminous flux of 1206 lm, a luminous efficacy of 241.2 lm/W, and a CCT of 5749 K has been realized using Al2O3-YAG:Ce phosphor ceramic in reflective mode, which can be applied for automotive headlights.
{"title":"Investigation of Excitation Modes in Al2O3-YAG Phosphor Ceramics for High-Power Laser-Driven Lighting","authors":"Zetao Shen, Qiang‐Qiang Zhu, Rundong Tian, Guimin Guo, Rongjun Xie, Le Wang","doi":"10.1149/2162-8777/ad3d09","DOIUrl":"https://doi.org/10.1149/2162-8777/ad3d09","url":null,"abstract":"\u0000 The performance of laser-driven white light can vary significantly depending on the excitation mode. To attain desirable application performance of color converters in laser lighting, the excitation mode must be selected carefully. In this work, to understand the effect of the excitation mode on the performance of color converters, a detailed study was conducted on the heat dispersion, luminescence, and color quality of Al2O3-YAG:Ce phosphor ceramics in both transmissive and reflective modes. The relationship between ceramic porosity and scattering performance has also been analyzed by studying the beam expansion ratio. The results demonstrate that the phosphor ceramics in reflective mode exhibit superior heat dissipation capabilities and can withstand higher power laser excitation compared to the transmissive mode, while the light uniformity is relatively poorer due to the specular reflection. Therefore, in situations where a uniform light is not necessary, reflective color converters are more suitable for achieving superior luminance and luminous efficacy. Finally, a laser-driven white light device with a luminous flux of 1206 lm, a luminous efficacy of 241.2 lm/W, and a CCT of 5749 K has been realized using Al2O3-YAG:Ce phosphor ceramic in reflective mode, which can be applied for automotive headlights.","PeriodicalId":504734,"journal":{"name":"ECS Journal of Solid State Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140718099","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}
Pub Date : 2024-04-10DOI: 10.1149/2162-8777/ad3d07
Anita Gupta, Santanu Sharma, R. Goswami
The main characteristics of a good pH detecting system are higher sensitivity, ease of manufacturing process, and a micro-system. Ion sensitive field effect transistors (ISFETs), which are frequently employed as biosensors, offer significant advantages, and have gained prominence in various sectors. This review has highlighted the factors influencing sensitivity in pH sensing and explored various methods to enhance the sensor’s sensitivity and overall performance. Miniature sensors play a crucial role, especially in industries, biomedical and environmental applications. For accurate pH measurements in both in-vivo and in-vitro systems, as well as for the device’s miniaturization, the reference electrode (RE) must be positioned precisely in an ISFET device, considering both the device’s physical dimensions and the distance between the sensing surface and the RE. Hence, this review provides valuable insights into the importance of sensitivity, miniaturization, and the role of the RE in ISFET devices, contributing to the advancement and application of pH sensing technology in diverse fields.
{"title":"Review—Silicon Based ISFET: Architecture, Fabrication Process, Sensing Membrane, and Spatial Variation","authors":"Anita Gupta, Santanu Sharma, R. Goswami","doi":"10.1149/2162-8777/ad3d07","DOIUrl":"https://doi.org/10.1149/2162-8777/ad3d07","url":null,"abstract":"\u0000 The main characteristics of a good pH detecting system are higher sensitivity, ease of manufacturing process, and a micro-system. Ion sensitive field effect transistors (ISFETs), which are frequently employed as biosensors, offer significant advantages, and have gained prominence in various sectors. This review has highlighted the factors influencing sensitivity in pH sensing and explored various methods to enhance the sensor’s sensitivity and overall performance. Miniature sensors play a crucial role, especially in industries, biomedical and environmental applications. For accurate pH measurements in both in-vivo and in-vitro systems, as well as for the device’s miniaturization, the reference electrode (RE) must be positioned precisely in an ISFET device, considering both the device’s physical dimensions and the distance between the sensing surface and the RE. Hence, this review provides valuable insights into the importance of sensitivity, miniaturization, and the role of the RE in ISFET devices, contributing to the advancement and application of pH sensing technology in diverse fields.","PeriodicalId":504734,"journal":{"name":"ECS Journal of Solid State Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140720370","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}
Pub Date : 2024-04-08DOI: 10.1149/2162-8777/ad3c25
Himanshu Prasad Mamgain, Krishna Samanta, Ranjeet K. Brajpuriya, Pravat Ranjan Pati, Rajeev Gupta, J. K. Pandey
Corrosion is an undesirable electrochemical reaction that leads to material degradation and affects material properties like ductility, malleability, conductivity, etc. The consequences of corrosion are machine failure, bridge failures, buildings collapse, and significant economic losses to GDP. Furthermore, corrosion can pose serious safety risks that result in casualties which makes minimizing the effect of corrosion a great challenge. Traditional solutions like inhibitors, design modification, and paints are available to prevent corrosion but have many limitations, such as cost, durability, stability issues, and general inefficiency. In this context, a nanostructured superhydrophobic coating (SH) is gaining attention due to its corrosion prevention efficiency and other broad industrial applications. The nano air pockets exhibit a high contact angle due to their unique combination of elevated surface roughness, distinctive nanostructure, and reduced surface energy. This reduces the surface area of contact between the corrosive substance and water droplet and the metal surface, leading to improved efficiency in resisting corrosion.In this paper, the recent electrodeposition to develop corrosion-resistant SH coatings on copper substrates and compression with other metals with their physical, chemical, and thermal stabilities are discussed.
腐蚀是一种不良的电化学反应，会导致材料降解，影响材料的延展性、延展性、导电性等特性。腐蚀的后果包括机器故障、桥梁垮塌、建筑物倒塌，以及对国内生产总值造成重大经济损失。此外，腐蚀还会带来严重的安全风险，造成人员伤亡，因此最大限度地减少腐蚀的影响是一项巨大的挑战。传统的解决方案，如抑制剂、设计修改和涂料等，都可以防止腐蚀，但有许多局限性，如成本、耐久性、稳定性问题和总体效率低下。在这种情况下，纳米结构的超疏水涂层（SH）因其防腐蚀效率和其他广泛的工业应用而备受关注。纳米气穴因其独特的高表面粗糙度、独特的纳米结构和降低的表面能组合而表现出很高的接触角。这就减少了腐蚀性物质和水滴与金属表面的接触面积，从而提高了抗腐蚀的效率。本文讨论了最近在铜基底上开发抗腐蚀 SH 涂层的电沉积方法，以及与其他金属的压缩及其物理、化学和热稳定性。
{"title":"Review—Fabrication of Nanostructured Corrosion-Resistant Superhydrophobic Coatings on Copper by Electrodeposition","authors":"Himanshu Prasad Mamgain, Krishna Samanta, Ranjeet K. Brajpuriya, Pravat Ranjan Pati, Rajeev Gupta, J. K. Pandey","doi":"10.1149/2162-8777/ad3c25","DOIUrl":"https://doi.org/10.1149/2162-8777/ad3c25","url":null,"abstract":"\u0000 Corrosion is an undesirable electrochemical reaction that leads to material degradation and affects material properties like ductility, malleability, conductivity, etc. The consequences of corrosion are machine failure, bridge failures, buildings collapse, and significant economic losses to GDP. Furthermore, corrosion can pose serious safety risks that result in casualties which makes minimizing the effect of corrosion a great challenge. Traditional solutions like inhibitors, design modification, and paints are available to prevent corrosion but have many limitations, such as cost, durability, stability issues, and general inefficiency. In this context, a nanostructured superhydrophobic coating (SH) is gaining attention due to its corrosion prevention efficiency and other broad industrial applications. The nano air pockets exhibit a high contact angle due to their unique combination of elevated surface roughness, distinctive nanostructure, and reduced surface energy. This reduces the surface area of contact between the corrosive substance and water droplet and the metal surface, leading to improved efficiency in resisting corrosion.In this paper, the recent electrodeposition to develop corrosion-resistant SH coatings on copper substrates and compression with other metals with their physical, chemical, and thermal stabilities are discussed.","PeriodicalId":504734,"journal":{"name":"ECS Journal of Solid State Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140732069","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}
Pub Date : 2024-01-26DOI: 10.1149/2162-8777/ad2331
Ramesh Kumar, R. K. Ratnesh, Jay Singh, Ashok Kumar, Ramesh Chandra
This paper focuses on the current emphasis on the latest industrial revolution, particularly the innovative integration of artificial intelligence and the Internet of Things (IoT). The study explores the seamless integration of electrical impedance tomography (EIT) with IoT, presenting a groundbreaking framework where impedance-based sensing plays a vital role in enhancing the dynamic and adaptable qualities of IoT ecosystems. This contribution facilitates intelligent decision-making and real-time monitoring. The research investigates the application of non-invasive EIT for the rapid identification of minor changes in the electrical impedance of the body or a simulated object. Electrodes positioned at the ends of the phantom's cylinder measure impedance changes through the application of a high-frequency, low-current signal. Image reconstruction employs both forward and inverse solutions, utilizing a triangular finite element method mesh to determine conductivity distribution based on recommended phantom models. The integration of IoT enables data capture, enhancing accessibility through remote monitoring. The novel IoT system proves advantageous for various engineering research applications, providing easily monitored parameters in both commercial and clinical contexts.
本文重点关注当前对最新工业革命的重视，尤其是人工智能与物联网（IoT）的创新融合。研究探讨了电阻抗层析成像（EIT）与物联网的无缝集成，提出了一个开创性的框架，其中基于阻抗的传感在增强物联网生态系统的动态和适应性方面发挥了重要作用。这一贡献有助于智能决策和实时监控。该研究调查了无创 EIT 在快速识别人体或模拟物体电阻抗微小变化方面的应用。通过应用高频、低电流信号，安装在人体模型圆柱体两端的电极可测量阻抗变化。图像重建采用正向和反向解决方案，利用三角有限元法网格确定基于推荐模型的传导性分布。物联网的集成实现了数据采集，通过远程监控提高了可访问性。事实证明，新颖的物联网系统有利于各种工程研究应用，可在商业和临床环境中提供易于监测的参数。
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Pub Date : 2024-01-26DOI: 10.1149/2162-8777/ad2330
Afsana Khan, Sonia Bansal
Transition metal dichalcogenides (TMDs) are extensively utilized in optoelectronics, sensors, and battery storage due to their versatile properties. Among them, molybdenum disulfide (MoS2) nanosheets possess remarkable optical, electronic, and chemical properties. This study employed a cost-effective hydrothermal method to successfully synthesize high-quality 2D MoS2 nanosheets. Different characterization techniques such as XRD, SEM, EDS, FTIR, Raman, UV-Vis and photoluminescence (PL) spectroscopy were utilized to evaluate the structural, morphological, chemical and optical characteristics of the nanosheets. XRD analysis indicates the MoS2 nanosheets exhibit a hexagonal crystal structure. The formation of thin MoS2 nanosheets was observed through SEM images. The growth mechanism of the formation of MoS2 is discussed in detail. Different functional groups present in the material were analyzed using FTIR spectra. The difference in vibration modes analysed by Raman spectroscopy indicated the presence of layered nanosheets. The optical bandgap (2.20 eV) of the material was determined by analyzing its UV-Vis spectroscopy data using the Tauc plot. PL analysis indicates a direct transition between the upper valence and lower conduction bands, suggesting that the nanosheets were synthesized with high quality. These findings have opened new possibilities for the use of MoS2 nanosheets in various applications such as optoelectronics and sensing devices.
{"title":"Morphological and Optical Characterization of Hydrothermally-Synthesized Two-Dimensional MoS2 Nanosheets","authors":"Afsana Khan, Sonia Bansal","doi":"10.1149/2162-8777/ad2330","DOIUrl":"https://doi.org/10.1149/2162-8777/ad2330","url":null,"abstract":"\u0000 Transition metal dichalcogenides (TMDs) are extensively utilized in optoelectronics, sensors, and battery storage due to their versatile properties. Among them, molybdenum disulfide (MoS2) nanosheets possess remarkable optical, electronic, and chemical properties. This study employed a cost-effective hydrothermal method to successfully synthesize high-quality 2D MoS2 nanosheets. Different characterization techniques such as XRD, SEM, EDS, FTIR, Raman, UV-Vis and photoluminescence (PL) spectroscopy were utilized to evaluate the structural, morphological, chemical and optical characteristics of the nanosheets. XRD analysis indicates the MoS2 nanosheets exhibit a hexagonal crystal structure. The formation of thin MoS2 nanosheets was observed through SEM images. The growth mechanism of the formation of MoS2 is discussed in detail. Different functional groups present in the material were analyzed using FTIR spectra. The difference in vibration modes analysed by Raman spectroscopy indicated the presence of layered nanosheets. The optical bandgap (2.20 eV) of the material was determined by analyzing its UV-Vis spectroscopy data using the Tauc plot. PL analysis indicates a direct transition between the upper valence and lower conduction bands, suggesting that the nanosheets were synthesized with high quality. These findings have opened new possibilities for the use of MoS2 nanosheets in various applications such as optoelectronics and sensing devices.","PeriodicalId":504734,"journal":{"name":"ECS Journal of Solid State Science and Technology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139593216","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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