Article
Materials Science, Ceramics
Weibai Bian, Jiqiang Jia, Ruixuan Zhang
Summary: Pt/SrTiO3(STO)/LaNiO3(LNO) and Pt/STO/Pt structures were fabricated on Si substrates using sol-gel method. Dielectric tunability characteristics of these two structures are investigated over temperature range of 300-80 K. STO prepared on LNO exhibits better crystallinity and dielectric tunability than that prepared on Pt. Furthermore, LNO/STO/LNO structure exhibits similar tunability, lower tan delta, higher figure-of-merit (FOM) values, and better tunability symmetry compared with Pt/STO/LNO structure, demonstrating the better performance of LNO electrode than conventional inert metal electrodes.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
G. N. Almeida, R. N. de Souza, L. F. S. Lima, N. D. S. Mohallem, E. P. da Silva, A. M. A. Silva
Summary: In this study, barium titanate powders were synthesized using sol-gel and sol-precipitation methods. The microstructural and dielectric properties of the samples prepared by both methods were compared. The sol-gel derived samples exhibited an increase in the tetragonal phase and dielectric constant with increasing temperatures, while the sol-precipitation derived sample was cubic. The presence of BaCO3 was more evident in the sol-precipitation derived sample, and the band gap of the products did not show significant variation with the synthesis method.
Article
Chemistry, Inorganic & Nuclear
Huiming Ji, Lu Zhang, Rui Zhang
Summary: Multiferroic BiFeO3 particles with size of about 50 nm and good crystallinity were prepared via a simple sol-gel method and annealing. The VOCs sensing properties of BiFeO3 sensor were tested under both traditional thermal excitation and synergetic thermal-magnetic excitation, and the results showed improved performance under the latter condition. The effect of magnetic field on the sensor can be attributed to decreased defects on domain walls, excitation of gas molecules, and activation of surface-absorbed oxygen species.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Yulia Eka Putri, Melvi Muharmi, Tio Putra Wendari, Diana Vanda Wellia
Summary: SrTiO3 thin films were fabricated on glass substrates using the in-situ sol-gel-hydrothermal method. The TiO2 layer was initially deposited using the sol-gel method, followed by the diffusion of Sr2+ ions in the TiO2 layer to obtain SrTiO3 via the hydrothermal method. The prepared SrTiO3 thin films exhibited a polycrystalline perovskite structure with different surface morphologies, and the optical properties were found to be dependent on the thickness of the films.
SURFACES AND INTERFACES
(2023)
Article
Materials Science, Ceramics
Rina R. Tikare, Rohit R. Powar, Vinayak G. Parale, Hyung-Ho Park, Tukaram J. Shinde, Dhanaji G. Kanase
Summary: The nanosphere decorated needle-like zinc-substituted aluminate samples (ZAN) were successfully synthesized by a sol-gel auto-combustion method, with their structural and morphological properties investigated through various analytical methods. The results showed that the ZAN sensor was sensitive and selective to H2S gas, and exhibited optimal response to H2S gas at 200 degrees Celsius.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Rina R. Tikare, Rohit R. Powar, Sharadchandra S. Patil, Dhanaji G. Kanase
Summary: Mixed metal oxides with different iron content (x = 0.2-1.0) were synthesized using sol-gel auto combustion process. The properties of the oxide materials were characterized using various techniques. The results showed that the replacement of aluminium ions affected the structure, bandgap, and crystallite size of the mixed metal oxides. The iron-substituted aluminate gas sensors exhibited good performance in detecting gases such as CO, H2S, and NO2.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Ceramics
Shuanghao Wu, Liuxue Xu, Kun Zhu, Baijie Song, Hao Yan, Bo Shen, Jiwei Zhai
Summary: The control of grain orientation and enhancement of piezoelectric and ferroelectric properties in thin films were achieved by introducing Nb-doped SrTiO3 single crystalline substrates. Consequently, Nb-doped SrTiO3 substrates facilitated the growth of oriented thin films with larger piezoelectric coefficient, energy storage density, and efficiency, promising broad application prospects.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Chemistry, Analytical
Ting-Hsuan Huang, Pei-Yi Li, Jin-Bin Yang, Te-Yao Liu, Mei-Hsin Chen, Po-Tsun Liu, Hsin-Fei Meng, Chia-Jung Lu, Olivier Soppera, Ping-Hung Yeh, Hsiao-Wen Zan
Summary: Room-temperature-operated sensitive NO2 sensors were developed using a sol-gel thin-film device with a vertical channel structure, demonstrating unique sensing modulation characteristics. By adjusting the film composition, the level of hydroxyl group was identified as the dominant factor influencing sensitivity. The sensors exhibited good selectivity, repeatability, and shelf lifetime.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Chemistry, Physical
Boying Wang, Hao Wang, Jiantao Wang, Chaolong Li, Feng Wang, Chunli Diao, Haiwu Zheng
Summary: In this study, lead-free 0.8STO-0.2BFO thin films with coexisting amorphous and nanocrystalline structure were prepared by a sol-gel method. By adjusting the heat-treatment temperature to form polar-nano regions, the energy storage density of the films was increased. The optimized 0.8STO-0.2BFO film exhibited excellent energy storage properties with high discharge energy storage density, temperature and frequency stability, as well as fatigue endurance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Ceramics
Tariq R. Sobahi, M. S. Amin
Summary: By synthesizing BaTiO3@MWCNT nanocomposites, the efficiency of photocatalytic oxidation of Atrazine (AT) under visible light was improved, showing excellent performance and stability of the nanocomposite.
CERAMICS INTERNATIONAL
(2021)
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
Hao Zu, Qiuyun Fu, Guohua Cao, Hui Liu, Hui Huang, Liang Yan, Xiaojuan He, Chuanfeng Wang
Summary: Nanopowders of Bax-0.003La0.003TiO3 were synthesized using the sol-gel method. Abnormal grain growth was observed in the Ba-excessive composition at a low sintering temperature, contrary to previous reports. The presence of BaCO3 in the powder was confirmed to be responsible for the abnormal grain growth.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Physical
Yong-Shen Lu, Jian-Qing Dai
Summary: Lead-free 0.7BiFe(1-2x)Zn(x)Mn(x)O(3)-0.3BaTiO(3) (BFZMx-BT) piezoceramics were prepared via sol-gel method and two-step sintering process. The addition of Zn and Mn ions significantly modified the microstructure, resulting in enhanced Curie temperature, dielectric properties, and polarization magnitude. The codoping of (Zn, Mn) in BF-BT induced improved performance in terms of remnant polarization, leakage current, Curie temperature, piezoelectric constant, strain response, and piezoelectric actuator constant.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Analytical
Xiqian Sun, Qing Lan, Jing Geng, Mengli Yu, Yecheng Li, Xiaohong Li, Li Chen
Summary: By assembling TiO2 nanoparticles decorated with polyoxometalate (POM) and organic dye molecules, we have achieved accelerated room-temperature sensing of NO2 gas under visible light illumination. This method improves the sensitivity and response/recovery time of the gas sensors, while maintaining high selectivity and relatively low detection concentration.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Chemistry, Analytical
Minwoo Cho, Tae-yil Eom, Srijita Nundy, Joon-Shik Park, Hoo-Jeong Lee
Summary: Based on hafnium-added indium zinc oxide (Hf-IZO), a nitrogen dioxide (NO2) gas sensor was produced and showed high response and selectivity to NO2 gas, as well as long-term stability. The sensing performance of the 15 at% Hf-IZO sensor is linked to the concentration of oxygen vacancies generated by the hafnium doping.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Chemistry, Inorganic & Nuclear
Alejandro Cadranel, Paola S. Oviedo, Pablo Albores, Luis M. Baraldo, Dirk M. Guldi, Jose H. Hodak
INORGANIC CHEMISTRY
(2018)
Article
Materials Science, Multidisciplinary
Nakorn Henjongchom, Nopporn Rujisamphan, I-Ming Tang, Thidarat Supasai
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE
(2018)
Article
Chemistry, Analytical
Aukrit Natkaeo, Ditsayut Phokharatkul, Jose H. Hodak, Anurat Wisitsoraat, Satreerat K. Hodak
SENSORS AND ACTUATORS B-CHEMICAL
(2018)
Article
Chemistry, Multidisciplinary
Xiaoya Yu, Linzhong Wu, Huicheng Hu, Min Chen, Yeshu Tan, Di Yang, Qi Pan, Qixuan Zhong, Thidarat Supasai, Qiao Zhang
Article
Physics, Applied
Nopporn Rujisamphan, I-Ming Tang, Thana Sutthibutpong, Vittaya Amornkitbamrung, Thidarat Supasai
JAPANESE JOURNAL OF APPLIED PHYSICS
(2019)
Article
Chemistry, Physical
Premjit Limpamanoch, Nopporn Rujisamphan, Pisist Kumnorkaew, Vittaya Amornkitbamrung, I-Ming Tang, Qiao Zhang, Thidarat Supasai
JOURNAL OF PHYSICAL CHEMISTRY C
(2019)
Article
Materials Science, Multidisciplinary
Teneng S. Ntia, Thidarat Supasai, I-Ming Tang, Vittaya Amornkitbumrung, Jianyu Yuan, Youyong Li, Thomas Dittrich, Nopporn Rujisamphan
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE
(2019)
Article
Chemistry, Multidisciplinary
Atittaya Naikaew, Pisist Kumnorkaew, Thidarat Supasai, Sujin Suwanna, Rutchapon Hunkao, Toemsak Srikhirin, Pongsakorn Kanjanaboos
Article
Chemistry, Inorganic & Nuclear
Bruno M. Aramburu-Troselj, Paola S. Oviedo, German E. Pieslinger, Jose H. Hodak, Luis M. Baraldo, Dirk M. Guldi, Alejandro Cadranel
INORGANIC CHEMISTRY
(2019)
Article
Materials Science, Multidisciplinary
Kusuma Pinsuwan, Chirapa Boonthum, Thidarat Supasai, Somboon Sahasithiwat, Pisist Kumnorkaew, Pongsakorn Kanjanaboos
JOURNAL OF MATERIALS SCIENCE
(2020)
Article
Materials Science, Multidisciplinary
Nakorn Henjongchom, Nopporn Rujisamphan, Teneng Stanilius Ntia, Pisist Kumnorkaew, I-Ming Tang, Vittaya Amornkitbumrung, Thidarat Supasai
CURRENT APPLIED PHYSICS
(2019)
Article
Energy & Fuels
Non Thongprong, Thidarat Supasai, Youyong Li, I-Ming Tang, Nopporn Rujisamphan
Article
Chemistry, Physical
Suriyong Pongpaiboonkul, Thitima M. Daniels, Jose H. Hodak, Anurat Wisitsoraat, Satreerat K. Hodak
Summary: This study aims to reduce the dielectric loss of CCTO thin films by doping with Fe3+ ions, while maintaining a large dielectric constant. Oriented films with high room temperature dielectric constants and low loss tangent values in the frequency range of 50 Hz-2 MHz were achieved through Fe-doping.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
Unyamanee Rosungnern, Pisist Kumnorkaew, Navaphun Kayunkid, Narong Chanlek, Youyong Li, I-Ming Tang, Non Thongprong, Nopporn Rujisamphan, Thidarat Supasai
Summary: MoOx serves as a buffer and hole transport layer in perovskite solar cells, suppressing defects and improving device functionality. The deposition of MoOx directly onto the perovskite leads to a loss in device functionality due to the inversion of photoinduced charge migration behaviors. The addition of MoOx results in lower J-V hysteresis, higher electrical conductivity, and more stable PCE values, with devices retaining over 85% of their initial efficiency.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Jitprabhat Ponchai, Paphada Kaewurai, Chirapa Boonthum, Kusuma Pinsuwan, Thidarat Supasai, Somboon Sahasithiwat, Pongsakorn Kanjanaboos
