Uma Gaikwad, Smita Acharya, Shraddha Shirbhate, Chitra Khade
{"title":"Modification of Structural and Dielectric Properties of SmFeO <sub>3</sub> Orthoferrites System by Ce Doping","authors":"Uma Gaikwad, Smita Acharya, Shraddha Shirbhate, Chitra Khade","doi":"10.1080/10584587.2023.2239098","DOIUrl":"https://doi.org/10.1080/10584587.2023.2239098","url":null,"abstract":"AbstractRare-earth orthoferrites RFeO3 are important functional materials and are very promising due to their unique electrical properties. Amongst various orthoferrites systems, SmFeO3 is emerging as potential system having various multifunctional behaviour with structural modifications by doping or microstructural effect. In the present attempt, we explore SmFeO3 system and modify it by partially replacing Sm by Ce. We have synthesised pure SmFeO3 based system through Sol-Gel one of the combustion method. X-ray diffraction study confirms the formation of pure and highly crystalline single phase without any impurity. To get more clarity about structural features, Rietveld Refinement has been carried out using by Full-Proof Software which confirms the formation of orthorhombic structure with Pbnm space group. Dielectric study confirms that Ce doping in SmFeO3 modify dielectric constant from one order to two order. The response of polarisation with respect to applied electric field has been studied by P-E loop tracer. The remanent polarisation (pr) enhanced from 0.040 to 0.050 µC/cm2 for x = 0.10 after applied maximum electric field. An improvement in the ferroelectric loop was obtained due to the suppression of oxygen vacancies and the reduced leakage current density (10 − 8 A/cm2 at 20 kV/cm).Keywords: Orthoferritessol gelperovskitedielectric properties AcknowledgmentAMRL laboratory, Dept. of Physics, RTMNU, Nagpur, India is acknowledged for providing the Ferroelectric (P-E loop) as well as Dielectric characterization facility.Disclosure StatementNo potential conflict of interest was reported by the author(s).","PeriodicalId":13686,"journal":{"name":"Integrated Ferroelectrics","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134968647","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Impact of Ferroelectric Material BaTiO<sub>3</sub> on Negative Capacitance TFET Device and Its Circuit Application","authors":"Amandeep Singh, Sanjeet Kumar Sinha, Sweta Chander","doi":"10.1080/10584587.2023.2227054","DOIUrl":"https://doi.org/10.1080/10584587.2023.2227054","url":null,"abstract":"With the increase in scaling of transistors in nanometer regime, various short channel effects are emerging in transistor operation that are required to resolved while putting conventional transistor to any practical application. Various device modifications and structure improvizations have been made and reported by the researchers to overcome the short channel effects and replace the conventional MOSFET with an optimized device in practical circuit applications. The device structure proposed in this work incorporates the negative capacitance phenomenon for making subthreshold swing steeper and enhancing current ratio of TFET. Further the device dimensions are being optimized to get improvised characteristics and best results are obtained at 3 nm thick BaTiO3 Ferroelectric material for making negative capacitance gate stack. In this paper, negative capacitance TFET so formed is used for implementing inverter and 1 T DRAM cell. Results obtained shows that the inverter and DRAM cell operates at a very lower supply voltage and are more suitable for low power applications as compared to conventional circuits.","PeriodicalId":13686,"journal":{"name":"Integrated Ferroelectrics","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134968651","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Rare Earth Metal Samarium Doped Ferrite and Its Structural, Morphological, Magnetic, and Optical Studies for Biomedical Applications","authors":"Avinash Tripathi, Abhishek Nigam, S. J. Pawar","doi":"10.1080/10584587.2023.2227042","DOIUrl":"https://doi.org/10.1080/10584587.2023.2227042","url":null,"abstract":"AbstractThe x-ray diffraction analysis manifested the single phases of Fe2O3, SmFeO3, and v SmFeO3 synthesized via sol-gel route. The Fe2O3, SmFeO3, and v SmFeO3 were hexagonal, orthorhombic, and cubic, respectively. The Debye-Scherer formula was used to calculate the average crystallite size of Fe2O3 (85.54 nm), SmFeO3 (67.65 nm), and v SmFeO3 (49.58 nm). The FESEM reveals near-spherical morphology with average particle sizes of 173, 114, and 161 nm, respectively. VSM analysis revealed the enhanced magnetic behavior of SmFeO3 and v SmFeO3 compared to Fe2O3. Antimicrobial activity against both E. coli and S. aureus bacteria justifies the biomedical application.Keywords: Antimicrobialferritesmagnetic nanoparticlessamariumrare earth material Disclosure StatementNo potential conflict of interest was reported by the author(s).AcknowledgmentsThe authors are grateful to the Centre for Interdisciplinary Research (CIR), MNNIT Allahabad, Prayagraj, and IIT Kanpur, for the characterization of the materials.Additional informationFundingThis work was supported by the Ministry of Education, Govt. of India, by giving an M. Tech. Fellowship.","PeriodicalId":13686,"journal":{"name":"Integrated Ferroelectrics","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134968823","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Shenghong Mao, Wenxiao Su, Chunyuan Liu, Fu Zhao, Hongxia Zhao, Xiaoping Zheng
{"title":"Catalytic Conversion of Ni <sub>12</sub> P <sub>5</sub> in Situ on the Surface of Carbon Nanotubes to Promote Polysulfide Conversion in High-Performance Lithium-Sulfur Batteries","authors":"Shenghong Mao, Wenxiao Su, Chunyuan Liu, Fu Zhao, Hongxia Zhao, Xiaoping Zheng","doi":"10.1080/10584587.2022.2143187","DOIUrl":"https://doi.org/10.1080/10584587.2022.2143187","url":null,"abstract":"Abstract Lithium-sulfur batteries have received lots of attention due to their high energy density and cheap material. The poor electrical conductivity and slow electrochemical kinetics of sulfur hinder their application. Here, we in situ grow Ni12P5 on carbon nanotube to prepare composites as sulfur host. Electrochemical tests show that Ni12P5 acts as an electrocatalyst in the lithium-sulfur batteries, initiating the oxidation of Li2S6 and Li2S4 at higher potentials, significantly improving the reaction kinetics during charging and discharging. The CNT@Ni12P5/S composite exhibited 1352 mAh/g initial discharge capacity at 0.1 C and a retention capacity of 85% after 100 cycles at 0.2 C.","PeriodicalId":13686,"journal":{"name":"Integrated Ferroelectrics","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134968645","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Extension of Surface Charge Density Studies of Metal Oxide Semiconductor (MOS) Structure to Polarization Studies of Metal Ferroelectric Metal (MFM) Structure in Bulk Form: Experimental and Simulation of Polarization Data","authors":"Syed Mahboob, None Rizwana","doi":"10.1080/10584587.2023.2239096","DOIUrl":"https://doi.org/10.1080/10584587.2023.2239096","url":null,"abstract":"Ba(NdxTi(1-2x)Nbx)O3 and (Na0.5Bi0.5)(NdyTi1-2yNby)O3 relaxor ferroelectric materials were prepared through solid state sintering route. The polarization as a function of electric field (PE loops) were measured with Radiant technologies PE loop tracer. In the present studies we have extended the surface charge density studies of metal oxide semiconductor (MOS) structure to the polarization studies of metal ferroelectric and metal (MFM) structure in bulk form by combining it with the modified Glazounov and Arrhenius equations. The simulation is in good agreement the experimental data. In the case of Ba(NdxTi(1-2x)Nbx)O3 ceramics the value of dipole moment (p) are 2.24x10−26 C.m, 1.80x10−26 C.m, 2.23x10−26 C.m & 2.21x 10−26 C.m for x = 0.025, 0.05, 0.1 & 0.2, respectively. The values of surface potential (Ψp) are 466 meV, 503 meV, 552 meV & 505 meV for x = 0.025, 0.05, 0.1 & 0.2, respectively.","PeriodicalId":13686,"journal":{"name":"Integrated Ferroelectrics","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134968644","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Photocatalytic Characteristics of Cobalt Doped ZnO and Cobalt/Manganese Co-Doped ZnO Nanocrystalline Materials Synthesized by Soft Chemical Route: Effective Elimination of Orange G Dye under UV Light","authors":"Elizabeth Kuruvilla, Arputharaj Samson Nesaraj, Vinaya Jose, Vismaya Jose, Manasai Arunkumar","doi":"10.1080/10584587.2023.2239095","DOIUrl":"https://doi.org/10.1080/10584587.2023.2239095","url":null,"abstract":"The cobalt (Co) doped ZnO (Zn1-xCoxO1-δ) and cobalt (Co)/manganese (Mn) co-doped ZnO (Zn1-x-yMnxCoyO1-δ) nanocrystalline materials were prepared using soft chemical synthesis route. Their fundamental and photo-physical properties were studied by XRD, FTIR, EDAX, SEM, TEM, BET and UV techniques. The photocatalytic studies of the samples were carried out using Orange G (OG) dye as a model contaminant where 25 mol% Co/Mn co-doped ZnO (CM-25) showed a higher degradation percentage (80%) than that of all Co doped ZnO samples. The factors influencing photocatalytic degradation of dye such as, amount of catalyst, dye concentration and pH were also studied.","PeriodicalId":13686,"journal":{"name":"Integrated Ferroelectrics","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134968648","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Norah Alwadai, V. P. Singh, Maryam Al Huwayz, Z.A. Alrowaili, Imen Kebaili, Imed Boukhris, M. S. Al-Buriahi
{"title":"Pyro-Catalytic Activates of Cement-Based BaTiO <sub>3</sub> Composites","authors":"Norah Alwadai, V. P. Singh, Maryam Al Huwayz, Z.A. Alrowaili, Imen Kebaili, Imed Boukhris, M. S. Al-Buriahi","doi":"10.1080/10584587.2023.2227055","DOIUrl":"https://doi.org/10.1080/10584587.2023.2227055","url":null,"abstract":"Abstract BaTiO3/cement pyroelectric composite was fabricated and it was also explored for pyrocatalysis dye degradation at room temperature. The BaTiO3/cement was electrically poled and piezoelectric coefficient was found to be ±20 pC/N. Poled BaTiO3/cement composite can effectively decompose Rhodanmine B dye with a degradation efficiency of 60% by harvesting 6–40 °C cold–hot alternation energy. These results along with the high stability displayed by the composites indicate a new approach for development of functional cements for environmental remediation.","PeriodicalId":13686,"journal":{"name":"Integrated Ferroelectrics","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134968506","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hoai Thuong Nguyen, Sergey V. Baryshnikov, A. Yu. Milinsky, Elena V. Stukova
{"title":"Dielectric Properties of a Nanocomposite from RbNO<sub>3</sub> Incorporated into Pores of Al<sub>2</sub>O<sub>3</sub> Matrix","authors":"Hoai Thuong Nguyen, Sergey V. Baryshnikov, A. Yu. Milinsky, Elena V. Stukova","doi":"10.1080/10584587.2023.2227052","DOIUrl":"https://doi.org/10.1080/10584587.2023.2227052","url":null,"abstract":"Abstract The present work reports the experimental results of studying linear and nonlinear dielectric properties of a ferroelectric nanocomposite from RbNO3 embedded in pores of an Al2O3 matrix. The dielectric relaxation times were determined above and below the phase transition temperature of pure RbNO3 (436 K). It was shown that for RbNO3 incorporated into nanosized pores of the Al2O3 matrix, a decrease in the phase transition temperature and a change in relaxation times were observed.","PeriodicalId":13686,"journal":{"name":"Integrated Ferroelectrics","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134968508","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Scanning Electron Microscopy Study of Ca <sub>0.5</sub> Nd <sub>0.5</sub> MnO <sub>3</sub> and Ca <sub>0.5</sub> Pr <sub>0.5</sub> MnO <sub>3</sub> Crystals","authors":"Z. E. Hakhverdiyeva","doi":"10.1080/10584587.2023.2227041","DOIUrl":"https://doi.org/10.1080/10584587.2023.2227041","url":null,"abstract":"AbstractPolycrystals of perovskite manganites Ca0.5Nd0.5MnO3 and Ca0.5Pr0.5MnO3 have been synthesized, their surface structure and elemental analysis have been studied using a Scanning Electron Microscope. X-ray phase analysis revealed that these compounds have an orthorhombic crystal structure with space group Pbnm. These compounds were synthesized as polycrystals in the solid phase. It was determined that Ca − 12.25%, Mn − 31.55%, Nd − 35.58%, O − 20.62% in the compound Ca0.5Nd0.5MnO3. In Ca0.5Pr0.5MnO3 compound Ca − 12.11%, Mn − 30.62%, Pr − 36.81%, O − 20.46%. From the surface structure obtained on a micron scale, it was determined that the size of the crystallites is in the range of 20-30 microns.Keywords: PerovskitemanganitSEM analysissurface structure Disclosure StatementNo potential conflict of interest was reported by the author(s).","PeriodicalId":13686,"journal":{"name":"Integrated Ferroelectrics","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134968510","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
N. Discharoen, S. Sanorpim, N. Nuntawong, V. Yordsri, K. Onabe
{"title":"TEM Investigation of Stacking Faults Defect Taken Along [100] Zone Axis of Cubic AlN on MgO (001) Substrate with Using 2-Step Growth Cubic GaN Buffer Layer by PAMBE","authors":"N. Discharoen, S. Sanorpim, N. Nuntawong, V. Yordsri, K. Onabe","doi":"10.1080/10584587.2023.2227049","DOIUrl":"https://doi.org/10.1080/10584587.2023.2227049","url":null,"abstract":"AbstractMicrostructures of cubic AlN on MgO (001) with using two-step growth of cubic GaN buffer layer grown by plasma assist molecular beam epitaxy (PAMBE) technique have been investigated by bright- and dark field cross section transmission electron microscopy (TEM) along [100] zone axis. The Pyramid shape contrast which has been proposed the characteristic of stacking faults defect was observed in cubic AlN film. Pyramid facet contrast correspond with (002) plane and (111) plane with ∼45° projection along [100] direction. The 3D graphic model can explain the Pyramid contrast structure defect as the same Pyramid contrast structure observed in [110] direction with the angle between (002) and (111) of cubic structure found ∼54.7° by the literature.Keywords: Cubic phaseAlNbuffer layerMBEstacking faultTEM AcknowledgementsThe authors would like to thank the 90th Anniversary of Chulalongkorn University Fund (Ratchadaphiseksomphot Endowment Fund), Conference Grant for Ph.D. Student Chulalongkorn University and Ratchadaphiseksomphot Endowment Fund of Chulalongkorn University (RES5605302227AM) for their financial support.Disclosure StatementNo potential conflict of interest was reported by the authors.","PeriodicalId":13686,"journal":{"name":"Integrated Ferroelectrics","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134968646","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}