Article
Chemistry, Physical
Mina Ghorbani, Saeed Sheibani, Hossein Abdizadeh, Mohammad Reza Golobostanfard
Summary: A porous bismuth ferrite (BFO)/reduced graphene oxide (rGO) nanocomposite thin film was successfully fabricated via a facile chemical approach for photoelectrochemical (PEC) water splitting. The BFO nanoparticles with a rhombohedral distorted perovskite crystal structure were grafted onto rGO nanosheets. The BFO/rGO (BGO) thin film exhibited smaller nanoparticles, higher porosity, higher visible absorption, narrower band gap energy, lower recombination rate of charge carriers, and higher photocurrent density compared to the BFO photoanode. The intimate hetero-structure between BFO nanoparticles and rGO nanosheets significantly boosted the charge separation and transfer, contributing to enhanced PEC water splitting efficiency.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Ceramics
Sakineh Hosseini, Ahmad Gholizadeh
Summary: In this study, pure-phase BiFe1-xMnxO3 (x = 0.0, 0.1, 0.2, 0.3, 0.4, 0.5) thin films were deposited using a low-temperature sol-gel assisted spin coating procedure. It was found that the films underwent a structural transition and the surface morphology and grain size were affected by the amount of Mn. The BiFe0.8Mn0.2O3 thin film showed the lowest bandgap energy and exhibited the best photocatalytic activity.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Analytical
Pei-Shan Huang, Ke-Jing Lee, Yeong-Her Wang
Summary: Magnesium zirconate titanate (MZT) thin films prepared using a sol-gel spin-coating method exhibit high sensitivity and repeatability as gas sensors, particularly for detecting NO2. The sensitivity of the MZT thin film to NO2 gas molecules at a working temperature of 150 degrees C was found to be 8.64% for 0.25 ppm and 34.22% for 5 ppm, indicating its potential for gas sensing applications.
Article
Materials Science, Ceramics
Xinxing Hao, Zhe Zhu, Zhonghua Yao, Hua Hao, Minghe Cao, Hanxing Liu
Summary: This study investigates the effect of polarization difference on the energy storage density of dielectric materials and finds that excess Ti can optimize the dielectric characteristics. The study also highlights the importance of polarization difference in achieving high energy storage density in electrostatic dielectric capacitors.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Ceramics
Anlong Fan, Yining Zhai, Kangyu Zhong, Qi Gao, Lisha Liu, Jiaojiao Yi
Summary: This study enhances the performance of ferroelectric materials through the construction of phase boundaries. A high Curie temperature phase boundary was discovered in the solid solution films of BiFeO3 and BiInO3, and the macroscopic electrical properties were systematically studied. These results are important for a better understanding of BiFeO3-based solid solutions and the potential application of BiFeO3-based films in high-temperature devices.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Ceramics
Bongho Jang, Jaewon Jang, Jae Eun Jang, Hyuk-Jun Kwon
Summary: This study fabricated high-performance SnO2 thin-film transistors (TFTs) at temperatures below 300 degrees C using the combustion-assisted sol-gel method. The results showed that the combustion-assisted solution process significantly increased the field-effect mobility of SnO2 TFTs compared to the conventional solution process, potentially enabling low-cost solution-processed electronics.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Inorganic & Nuclear
Adrine Antony Correya, Abdul Nadeer, V. P. N. Nampoori, A. Mujeeb
Summary: Capping agents play a crucial role in controlling the morphology and crystalline structure of nanoparticles. This study demonstrates that adding polyethylene glycol can transform bismuth titanate nanospheroids into nanosheets. The nanosheets exhibit higher thermal diffusivity.
JOURNAL OF CLUSTER SCIENCE
(2023)
Article
Chemistry, Inorganic & Nuclear
Liuxue Xu, Shuanghao Wu, Kun Zhu, Baijie Song, Xiaofeng Zhou, Hao Yan, Bo Shen, Jiwei Zhai
Summary: The lead-free thin films BNT-xSBT deposited on Pt/Ti/SiO2/Si substrates by the sol-gel method exhibit excellent piezoelectric properties and flexible dielectric tunability. Mn doping in appropriate amounts significantly reduces leakage current in the films, resulting in an ultra-high inverse piezoelectric coefficient.
INORGANIC CHEMISTRY FRONTIERS
(2021)
Article
Materials Science, Ceramics
M. Chakraborty, E. S. Kadir, R. N. Gayen
Summary: By varying the graphene oxide (GO) content, the modification of UV photo-response characteristics in transparent titanium dioxide-graphene oxide (TiO2-GO) nanocomposite thin films was studied. The presence of GO improves the optical band gap of TiO2 without affecting its transparency. The fabricated metal-semiconductor (MS) Schottky junctions with TiO2-GO nanocomposite thin films show rectifying behavior and improved UV response characteristics.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Ceramics
Zhe Wang, Jinyan Zhao, Gang Niu, Nan Zhang, Kun Zheng, Yi Quan, Lingyan Wang, Jian Zhuang, Genshui Wang, Xin Li, Henghui Cai, Ming Liu, Zhuangde Jiang, Yulong Zhao, Wei Ren
Summary: In this work, high-quality (0.94-x%)(Bi0.5Na0.5)TiO3-0.06BaTiO3-x%NaNbO3 thin films were successfully deposited on Pt/TiO2/SiO2/Si substrates by sol-gel method. The BNT-6BT-6NN thin films showed an optimized strain response, which is attributed to a synergistic reaction of active domain switching and reversible electric-field-induced phase transition.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Article
Materials Science, Multidisciplinary
Zan Wang, Man Xu, Dan Zhang, Lei Wang, Wen-zheng Zhang
Summary: Ferroelectric thin films with different Sb concentration, Bi4-xSbxTi3O12 (Sb-( (x) ())-BIT) and Bi2-ySbyTi2O7 (Sb-( (y) ())-BTO), were successfully fabricated using the sol-gel method. The doping of Sb element significantly reduced the leakage current of the films. By constructing a Sb-( (0.04) ())-BIT/Sb( (0.3) ())-BTO system, the properties of BIT ferroelectric thin films were further improved, including a decrease in leakage current, an increase in residual polarization, and enhanced fatigue endurance.
Article
Chemistry, Physical
Yanjiang Xie, Hua Hao, Zhengtao Huang, Shuo Zhang, Minghe Cao, Zhonghua Yao, Hanxing Liu
Summary: In this study, Fe-doped 0.94BNT-0.06BT ferroelectric thin films were prepared and demonstrated improved dielectric and energy-storage performances. The 0.96BNT-0.04BT-Fe-2 thin film exhibited the best properties among the samples studied.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Ceramics
Jingwei Zhao, Zhonghua Yao, Zhijian Wang, Ning Zhang, Hua Hao, Minghe Cao, Hanxing Liu
Summary: By employing microstructural engineering, an optimized lead-free Zr-modified BiMg0.5Zr0.04Tix-0.04O3 composition was developed to enhance energy storage behavior, achieving superior energy properties and high efficiency. Rapid annealing and excess Ti source doping effectively increased polarization and dielectric breakdown levels.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Renzhong Xue, Liuyang Zhao, Siyuan Chen, Hongxuan Chen, Mengru Cui, Xintao Bai, Tao Li, Dewei Liu, Haiyang Dai
Summary: The effects of A-site transition from Ca2+ to Cd2+ on the microstructure, morphology, and electrical properties of Ca(1-x)CdxCu(3)Ti(4)O(12) thin films were investigated. The films exhibited smooth and compact surfaces without cracks. The transition from Ca2+ to Cd2+ resulted in changes in grain size and electrical properties. In particular, the simultaneous occupancy of A sites by Ca2+ and Cd2+ improved the dielectric and nonlinear properties of Ca1-xCdxCu3Ti4O12 films.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Huiting Sui, Huajun Sun, Chao Yan, Shibing Xiao, Ye Wang, Xiaofang Liu, Duanping Huang
Summary: Lead-free thin films with excellent high recoverable energy density and efficiency were fabricated via the sol-gel process, exploring the effects of key parameters on their performance. The highest W-rec and eta were achieved for specific multilayer structures, showing considerable potential for lead-free energy storage applications.
APPLIED SURFACE SCIENCE
(2021)
