Article
Materials Science, Multidisciplinary
Xin Zhao, Xiang Zhang, Zhiwei Yin, Wenjie Li, Changpeng Yang, Wenhai Sun, Hulin Zhang, Yao Li
Summary: In this work, W-doped NiO films were prepared by RF magnetron co-sputtering to improve the performance of NiO. The optical modulation of W-NiO was significantly improved compared with pure NiO, and the response time was similar to NiO film. The all-solid-state electrochromic devices (ECDs) employing W-NiO showed high modulation capabilities and great potential for applications in smart windows and spacecraft thermal control devices.
Article
Materials Science, Multidisciplinary
Devesh K. Pathak, Tanushree Ghosh, Suchita Kandpal, Chanchal Rani, Rajesh Kumar
Summary: The fabrication of a solid state device by combining two different conducting polymers, polyaniline (PANI) and polythiophene (P3HT), enables the display of three primary colors in a single system. The electrochromic properties are demonstrated on both electrodes, achieved by selecting an appropriate bias. The device delivers faster switching (500 ms) and better coloration efficiency up to 540 cm2/ C, thanks to the complementary redox activity of the PANI and P3HT electrodes.
Article
Chemistry, Analytical
Chan Yang Jeong, Takashi Kubota, Chuleekorn Chotsuwan, Vasujin Wungpornpaiboon, Kazuki Tajima
Summary: Next-generation automobiles will feature smart windows that can vary their optical properties dynamically. An all-solid-state ECD using a polymer electrolyte has been developed, offering excellent color efficiency with easier assembly, although it has a longer response time compared to gel electrolyte ECDs. This design is expected to be easier to implement in practical industrial settings.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2021)
Article
Engineering, Electrical & Electronic
Zewei Shao, Aibin Huang, Chen Ming, John Bell, Pu Yu, Yi-Yang Sun, Liangmao Jin, Liyun Ma, Hongjie Luo, Ping Jin, Xun Cao
Summary: This study presents fast-switching electrochromic devices based on all-solid-state tandem structures using protons as the diffusing species. The devices exhibit high contrast ratios, fast responses, good colouration efficiency, and excellent cycling stability.
NATURE ELECTRONICS
(2022)
Article
Chemistry, Physical
Rui Wang, Han Lin, Hongbing Zhu, Meixiu Wan, Kai Shen, Yaohua Mai
Summary: In this study, nickel oxide (NiOx) thin films were reactively sputtered at different working pressures for flexible all-thin-film electrochromic devices (ATF-ECDs) application. The working pressure significantly influenced the properties of reactively sputtered NiOx thin films, including deposition rate, grain structure, morphology, chemical composition, optical properties, and electrochemical properties. The ATF-ECDs with >= 2 Pa NiOx thin films exhibited high optical modulation and fast response time during electrochromic processes. The detailed electrochromic mechanism was discussed.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Rui Wang, Lijun Pan, Qiaonan Han, Hongbing Zhu, Meixiu Wan, Yaohua Mai
Summary: The properties of Ta2O5 thin films deposited through DC reactive magnetron sputtering at different working pressures were studied, with the 2.0 Pa Ta2O5 SEL showing the best performance in ATF-ECDs with high optical modulation and fast switch speeds.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Energy & Fuels
Xiaoqi Che, Junji Guo, Mei Wang, Mengying Wang, Xiaolan Zhong, Qiaoyi Liu, Guobo Dong, Xu Wang, Jiaming Yang, Xungang Diao
Summary: Increasing film thickness generally enhances the electrochemical and optical properties of WO3 and NiOx films, but there is a critical thickness where charge capacities and optical modulation drop due to the dominance of the diffusion-controlled process.
Article
Chemistry, Multidisciplinary
Aishanee Sur, Joe D. Simmons, Andrew A. Ezazi, Kyle J. Korman, Subham Sarkar, Ethan T. Iverson, Eric D. Bloch, David C. Powers
Summary: The study demonstrates the versatile platform of optically transparent, porous salt thin films for solid-state photochemistry and in operando spectroscopy. Photolysis efficiently reduces Mn-(III) sites to Mn-(II) sites.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Cheong-Ha Kim, Yu-Sung Kim, Jin-Young Choi, In-Sik Lee, Byung-Chul Cha, Dae-Wook Kim, Jewon Lee
Summary: Electrochromic technologies have gained attention for their energy-saving performance. This study electrodeposited nanostructured tungsten trioxide films to enhance their electrochromic properties by controlling the pH of electrolytes. Electron microscopy and spectroelectrochemical analysis showed that smaller grain sizes resulted in larger electrochemical reactive surface areas and shorter ion diffusion lengths, achieving efficient ion intercalation and deintercalation.
Article
Chemistry, Analytical
Hsi-Chao Chen, Yu-Hung Yen, Yu-Xuan Zhuang, Tan-Fu Liu
Summary: Vanadium Pentoxide (V2O5) and Tungsten Trioxide (WO3) films were used to create an all-solid-state electrochromic device (ECD) with fast response time and low voltage stable startup. By adjusting the oxygen flow and annealing temperature, optimal optical contrast (AT), coloring time (tc), and bleaching time (tb) were achieved. However, in the ITO/V2O5/gel-electrolyte/WO3/ITO device, the working voltage was measured as & PLUSMN;2.5 V, and the tc and tb were slightly longer.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Inho Song, Liyan You, Ke Chen, Won-June Lee, Jianguo Mei
Summary: Homogeneous chiral electrochromics using chiral assembly of conjugated polymers have been developed through a transient solidification process with molecular chiral templates. The circular dichroism can be tuned by adjusting the doping level of the electrochemically active polymer films. The differential circularly polarized transmission in the chiral see-through display can make a well-resolved color change, demonstrating proof-of-concept devices for information encryption.
ADVANCED MATERIALS
(2023)
Review
Polymer Science
Benedict Wen-Cheun Au, Kah-Yoong Chan
Summary: Smart windows, or switchable glasses, have attracted attention for their ability to save energy in commercial buildings. This paper reviews recent advances in solid electrolytes as potential solutions to the drawbacks of current liquid-based electrolytes.
Article
Engineering, Electrical & Electronic
Cesar Carrillo-Delgado, Jose Alberto Arano-Martinez, Monica Araceli Vidales-Hurtado, David Torres-Torres, Claudia Lizbeth Martinez-Gonzalez, Carlos Torres-Torres
Summary: This report analyzes the asymmetry effects of an electric field on nonlinear optical signals in NiO thin solid films. The samples were prepared using a spray pyrolysis method and had a thickness of approximately 110 nm. The change in nonlinear refractive index was evaluated by nanosecond pulses at 532 nm using the z-scan technique. Nonlinear optical absorption was confirmed to be absent before ablation occurs in the nonlinear media. Numerical simulations were conducted to analyze non-reciprocal energy transfer and the optical Kerr effect under an applied voltage. Potential applications include controlling nonlinear waveguiding structures and optical systems with multidirectional functions.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Electrochemistry
Thi Hai Quyen Nguyen, Michael Schafer, Marius Pelmus, Sergiu M. Gorun, Derck Schlettwein
Summary: Thin films of a mixture of perfluorinated phthalocyanines F16PcCu and F64PcCu were prepared by simultaneous vapor deposition. UV/Vis spectroscopy revealed moderate intermolecular coupling between F16PcCu and F64PcCu in the mixed films. Electrochemical characterization using KCl electrolyte showed comparable transport coefficients of electrons and ions in the 1:1 F16PcCu:F64PcCu mixed films.
ELECTROCHIMICA ACTA
(2021)
Article
Physics, Applied
Suchita Kandpal, Tanushree Ghosh, Meenu Sharma, Devesh K. Pathak, Manushree Tanwar, Chanchal Rani, Ravi Bhatia, I Sameera, Anjali Chaudhary, Rajesh Kumar
Summary: The performance of a polythiophene-ethyl viologen-based solid state electrochromic device has been enhanced by doping with multi-walled carbon nanotubes, resulting in efficient color switching and high color contrast. The device, which operates on a redox-based mechanism and is characterized using various techniques, is free from liquid electrolyte and demonstrates fast switching time, high coloration efficiency, and stability.
APPLIED PHYSICS LETTERS
(2021)
Article
Electrochemistry
Yingming Zhao, Xiang Zhang, Xi Chen, Wenjie Li, Lebin Wang, Zitong Li, Jiupeng Zhao, Frank Endres, Yao Li
Summary: In this study, Sn-NiO films with superior electrochromic performance were prepared through a simple one-step magnetron sputtering process. By modifying the microstructure of the NiO film with Sn4+ ions, the grain size was refined, the electrochemically active surface was enlarged, and the diffusion of lithium ions was promoted, thus improving the electrochromic performances of the NiO film. The optimized Sn-NiO film showed outstanding electrochromic performances, including large transmittance modulation, high coloration efficiency, fast switching speed, and good cycling durability.
ELECTROCHIMICA ACTA
(2021)
Article
Materials Science, Multidisciplinary
Shuliang Dou, Weiyan Zhang, Feifei Ren, Jinxin Gu, Hang Wei, Xi Chen, Gaoping Xu, Xiangqiao Yan, Yaohui Zhan, Jiupeng Zhao, Yao Li
Summary: This study utilized HiPIMS to in-situ prepare VO2 thermochromic film with optical performance optimized and thermochromic ability exceeding 55%. The phase transition temperature of VO2 film is lower with a narrow hysteresis loop width, and the emittance difference in the mid-infrared region can be distinctly distinguished as temperature increases.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Chemistry, Physical
Xi Chen, Wenjie Li, Shuliang Dou, Lebin Wang, Yingming Zhao, Xiang Zhang, Yao Li, Jiupeng Zhao
Summary: This study demonstrates the potential use of MgF2 film as an alternative solid electrolyte in solid state ECDs, showing great optical modulation and fast response speeds. The ECD also achieves extreme transmittance values for private settings.
JOURNAL OF MATERIOMICS
(2021)
Article
Mechanics
Panpan Zhang, Ke Zhang, Xi Chen, Shuliang Dou, Jiupeng Zhao, Yao Li
Summary: With the increasing demands for low dielectric constant materials with high mechanical and electric breakdown strength in the development of high-frequency and high-speed flexible circuit boards, a novel sandwich structure using fluorinated graphene/polyimide (FG/PI) composite film and porous PI film has been successfully fabricated, showing excellent performance. The three-layer FG/PI film exhibited remarkable mechanical and dielectric breakdown properties, making it a highly prospective candidate for flexible circuit substrates in electronics and microelectronics devices.
COMPOSITE STRUCTURES
(2021)
Article
Materials Science, Multidisciplinary
Xi Chen, Wenjie Li, Lebin Wang, Yingming Zhao, Xiang Zhang, Yao Li, Jiupeng Zhao
Summary: This study demonstrates that Mg2+ is an efficient EC insertion ion for addressing the issues in EC devices. Annealing affects the properties of WO3 films, with films annealed at 200 degrees Celsius showing the best performance, and the ΔT of the EC device structure is approximately 34.6%.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Materials Science, Multidisciplinary
Yingming Zhao, Xiang Zhang, Xi Chen, Wenjie Li, Zitong Li, Mingjun Chen, Wenhai Sun, Jiupeng Zhao, Yao Li
Summary: By utilizing LiAlSiO4 as the electrolyte material, a solid-state electrochromic device with excellent optical performance and stability was successfully prepared. Considering its low cost and abundance of aluminum and silicon, LiAlSiO4 may be recognized as a sustainable electrolyte for future high-performance ECDs.
Article
Energy & Fuels
Wenjie Li, Xiang Zhang, Xi Chen, Yingming Zhao, Wenhai Sun, Yingjun Xiao, Senran Li, Jiupeng Zhao, Yao Li
Summary: Annealing temperature significantly affects the performance of ECDs, with low temperature annealing leading to poor stability and high temperature annealing resulting in better optical modulation. The relationship between annealing temperature and ECDs performance is crucial for practical applications.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2021)
Article
Materials Science, Multidisciplinary
Xi Chen, Yingming Zhao, Wenjie Li, Lebin Wang, Junying Xue, Xiang Zhang, Yao Li
Summary: In this study, NiO films deposited by e-beam evaporation were investigated. The annealing effect on the structure, morphology, and optical properties of NiO films was studied and it was found that NiO films annealed at room temperature exhibit good cyclic stability and large optical modulation. Additionally, ECDs with a unique structure showed significant optical transmittance modulation and fast response. These findings suggest the potential application of Mg2+-based ECDs.
Article
Materials Science, Multidisciplinary
Yangyang Wang, Tianhao Li, Xi Chen, Liwen Zhang
Summary: The oxidation of Sn2+ in lead-free perovskite solar cells was effectively suppressed by using a metal halide as a reducing agent, resulting in improved performance. The flexible lead-free perovskite solar cell device showed high efficiency and retained a significant portion of its initial performance after long-term storage.
Article
Materials Science, Multidisciplinary
Xi Chen, Hulin Zhang, Wenjie Li, Yingjun Xiao, Zhen Ge, Yao Li, Xiang Zhang
Summary: This study investigates the application of Na+ based solid state electrolytes in all solid state electrochromic devices, which exhibit fast response and high coloration efficiency. It represents a significant advancement in solid state electrolytes and opens up new avenues for high-performance electrochromic devices.
Article
Materials Science, Multidisciplinary
Zhen Ge, Xi Chen, Xiaoming Hao, Shun Hu, Jiyang Li, Haoran Lai
Summary: In this study, wood-derived hierarchical porous free-standing carbon framework materials were used as three-dimensional conductive current collectors to assemble high-performance lithium-sulfur batteries. The micron-scale pores of wood promote electrolyte diffusion, while the introduction of nanopores on the carbon skeleton inhibits the dissolution and shuttle effect of lithium polysulfide, enhancing the rate and cycle performance of the batteries. The porous carbon framework, with adjustable density, allows for a specific capacity of 1120 mAh/g and good rate performance. After 500 cycles, the capacity decay is only 0.11%/cycle and 0.08%/cycle at 0.5 C and 1 C, respectively. Additionally, wood is a cost-effective and renewable material, and the batteries can be assembled without conventional conductive agents, binders, and current collectors.
Article
Chemistry, Physical
Jiyang Li, Xi Chen, Xiaoming Hao, Haoran Lai, Zhen Ge, Mengqiang Wu
Summary: The energy and power density of LiNi0.5Co0.2Mn0.3O2 (NCM523) can be improved by enhancing the upper -limit voltage and the charging/discharging rate respectively, but they also lead to severe capacity decay. While the high-voltage capacity fading mechanism of NCM523 has been widely studied, the one affected by the charging/discharging rate remains unclear. This work reveals the long-cycle capacity degradation mechanism of NCM523 caused by rate-dependent kinetic limitations, which can contribute to the design and improvement of high-energy/power-density lithium-ion batteries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Green & Sustainable Science & Technology
Xi Chen, Hulin Zhang, Wenjie Li, Yingjun Xiao, Xiang Zhang, Yao Li
Summary: The energy consumption in building ventilation, air, and heating conditioning systems accounts for about 25% of the overall energy consumption in modern society. Electrochromic devices (ECDs) with CaF2 films as Ca2+ electrolyte layer were studied in this research, showing promising potential for large-scale commercial smart windows due to their short switching times and good optical modulation.
ENVIRONMENTAL SCIENCE AND ECOTECHNOLOGY
(2022)
Article
Materials Science, Ceramics
Zhang Xiang, Li Wenjie, Wang Lebin, Chen Xi, Zhao Jiupeng, Li Yao
Summary: Electrochromic materials can reversibly change their optical properties under low voltages, with a wide range of regulatable spectrum for applications in various fields. Recent research on inorganic electrochromic materials has shifted focus to reflection characteristics, utilizing special preparation and structural design to control reflectance spectra.
JOURNAL OF INORGANIC MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Lebin Wang, Xiang Zhang, Xi Chen, Xiaobai Li, Yingming Zhao, Wenjie Li, Jiupeng Zhao, Zhiyong Chen, Yao Li
Summary: Electrochromic smart windows regulate indoor solar radiation by adjusting optical transmittance. Tungsten oxide/nickel oxide (WO3/NiO) solid-state devices are likely to be industrialized among all electrochromic devices. By adding 2-8 wt% of H2O to the lithium electrolyte, high charge capacity NiO films can be obtained, improving optical modulation and achieving long-life stability in solid-state electrochromic devices.
JOURNAL OF MATERIALS CHEMISTRY C
(2021)
Article
Materials Science, Multidisciplinary
Deyong Zheng, Huihui Jin, Yucong Liao, Pengxia Ji
Summary: In this study, a highly stable and efficient catalyst, fluorine-doped Co3O4 (F-Co3O4), was developed for hydrogen production by water electrolysis. The F-Co3O4 catalyst exhibited a remarkable reduction in overpotential and demonstrated excellent stability for over 100 hours.
Article
Materials Science, Multidisciplinary
Ziwen Lv, Jintao Wang, Fengyi Wang, Jianqiang Wang, Fuquan Li, Hongtao Chen
Summary: Adding Cu6Sn5 nano particles can effectively inhibit the overgrowth of intermetallic compounds at the interfaces of solder joints in electronic devices, providing a solution to this issue. A new growth mechanism of intermetallic compounds at the interfaces was identified.
Article
Materials Science, Multidisciplinary
Jun Wang, Jiawei Chen, Wanru Liao, Fangyang Liu, Min Liu, Liangxing Jiang
Summary: A BiOI/AgI/Ag plasmonic heterostructure photocathode was successfully designed through electrodeposition, ion-exchange, and illumination methods. This photocathode exhibits superior performance in photoelectrochemical water splitting.
Article
Materials Science, Multidisciplinary
Xiaoxiao Liu, Xianxian Zhou, Xiaotao Ma, Qinbo Yuan, Shibin Liu
Summary: In this study, the authors propose a method to accelerate the reaction of polysulfides in lithium-sulfur batteries using a Ni@OC Mott-Schottky heterojunction as a catalyst. The experimental results demonstrate that the charge redistribution at the Ni@OC interface accelerates electron transfer and enhances catalytic activity, leading to improved reaction kinetics and battery performance.
Article
Materials Science, Multidisciplinary
Dayou Ma, Mohammad Rezasefat, Joziel Aparecido da Cruz, Sandro Campos Amico, Marco Giglio, Andrea Manes
Summary: The matrix has a significant effect on the impact resistance of composite materials. Replacing a brittle polymer with a more flexible one can improve impact resistance, but it poses challenges to standard testing methods. This study designs a new fixture for testing the low-velocity impact of soft composites and investigates the effect of the fixture on the mechanical performance.
Article
Materials Science, Multidisciplinary
Lingchang Wang, Qihang Yang, Huzhen Li, Ming Wei, Qian Wang, Zhenzhong Hu, Mengmeng Zhen
Summary: Bronze titanium dioxide (TiO2(B)) is a promising anode material for lithium-ion batteries due to its high specific capacity. However, its practical applications are hindered by poor conductivity and limited electrochemical kinetics. In this study, TiO2(B)-carbon nanosheets heterostructures are synthesized to enhance the cycling performance and rate capability of TiO2(B).
Article
Materials Science, Multidisciplinary
Atul Thakur, Ritesh Verma, Ankush Chauhan, Fayu Wan, Preeti Thakur
Summary: In this study, BaFe12O19 and BaFe12O19: Epoxy (50:50) nanocomposites were synthesized using the co-precipitation method. The structural information and material properties, such as crystallite size and electrical conductivity, were characterized by XRD, FESEM, EDX, and TEM techniques.
Article
Materials Science, Multidisciplinary
Jingyu Wu, Xinyan Ma, Yong Yang
Summary: A well-defined CoS2@NC(CS-500) hierarchical binder-free catalyst cathode is constructed through in-situ grown of ZIF-67 on carbon cloth and high-temperature carbonization. The cathode shows excellent reaction kinetics and electrochemical performance, providing inspiration for developing advanced Li-CO2 battery catalysts.
Article
Materials Science, Multidisciplinary
Svetlana M. Posokhova, Vladimir A. Morozov, Kirill N. Boldyrev, Dina Deyneko, Erzhena T. Pavlova, Bogdan I. Lazoryak
Summary: This study explores the impact of synthesis method and composition on the structure and luminescence properties of K5Eu1-xHox(MoO4)4 with the palmierite-type matrix. The co-doping of Eu3+ and Ho3+ ions plays a critical role in manipulating charge transfer and luminescence efficiency in the visible and infrared regions.
Article
Materials Science, Multidisciplinary
Jian Wang, Yeting Tao, Jingsheng Wang, Youtian Tao
Summary: A new electron-transport material iTPyBI-CN is developed through non-catalytic C-N coupling reaction. It exhibits better electroluminescence efficiency in organic light-emitting diodes compared to the commercial material TPBI, due to its twisted geometry and higher energy levels.
Article
Materials Science, Multidisciplinary
Tao Zhu, Feng Huang, Shuo Li, Yang Zhou
Summary: This article combines XRD analysis and microscopic structural observation to investigate the changes in limestone after high-temperature treatment. It finds that 500 degrees C is the critical temperature for crystalline and spatial arrangement changes in limestone, and the thermal conductivity, specific heat capacity, and heat storage coefficient gradually decrease after thermal treatment.
Article
Materials Science, Multidisciplinary
Muhammad Haekal Habibie, Fransiska Sri Herwahyu Krismastuti, Abdi Wira Septama, Faiza Maryani, Vivi Fauzia
Summary: This study focuses on the synthesis of zinc oxide nanostructure from zinc recovered from galvanization ash and highlights its potential as a sustainable source of zinc and as an antibacterial agent.
Article
Materials Science, Multidisciplinary
Jingyi Li, Yixin Xing, Wei Gu, Shousi Lu
Summary: In this study, PC@CaP microparticles were fabricated using biomimetic mineralization. The results showed that under environmental stress, PC@CaP exhibited improved stability and antioxidative activity, indicating its potential use in high-added value fields.
Article
Materials Science, Multidisciplinary
Yan Liu, Shunyou Chen
Summary: In this study, TNTs were used as a drug carrier and modified with ZIF-8 and silk fibroin to obtain a new drug loading platform. The results showed that this drug-loaded platform had a good drug release effect in vitro and could promote cell proliferation and osteogenic differentiation.
Article
Materials Science, Multidisciplinary
Chunhui Zhu, Wentao Wang, Qing Zhen, Xinning Huang, Shixin Li, Shaochang Wang, Xiaoping Ma, Xiaoxia Liu, Yalong Jiao, Kai Sun, Zhuangzhi Li, Huaixin Yang, Jianqi Li
Summary: A type of stacking fault is revealed in e-InSe crystal, which is associated with a small stacking-fault energy and shows exceptional plasticity.
