Article
Materials Science, Ceramics
V. O. Anyanwu, M. K. Moodley
Summary: Aluminium doped with zinc oxide (98 wt %) (AZO) thin films were fabricated on glass substrates using pulsed laser deposition (PLD) technique, showing nanoscale structures and morphology. The deposition was performed at chosen substrate temperatures and low partial pressure. A laser energy density of 4 J/cm2 was utilized, which effectively ablated the bulk AZO and minimized droplets arrival on the substrates. The AZO films exhibited crystallite sizes ranging from 31.1 to 45.4 nm, and the lowest resistivity was achieved at 6.8 x 10-5 ohm cm with an average optical transmittance of 83% in the UV-vis-NIR region. The PLD technique provides a significant avenue for crack-free and reliable thin film growth with improved electrical and optical properties.
CERAMICS INTERNATIONAL
(2023)
Article
Green & Sustainable Science & Technology
Ali Altuntepe, Mehmet Ali Olgar, Serkan Erkan, Onur Hasret, Ahmet Emin Kececi, Gamze Kokbudak, Murat Tomakin, Ayse Seyhan, Rasit Turan, Recep Zan
Summary: This study utilized a hybrid TCO structure composed of AZO and graphene to enhance the performance of silicon-based solar cells. The presence of graphene was found to improve cell efficiency significantly, with an increase of about 7-12% observed in different configurations.
Article
Chemistry, Physical
Hehe Zhang, Jan Mischke, Wolfgang Mertin, Gerd Bacher
Summary: This paper provides an overview of the current status of graphene-based transparent conductive electrodes in GaN-based LEDs. It focuses on manufacturing progress and the resulting properties of the fabricated devices, discussing the impact of graphene-based transparent conductive electrodes on current spreading and contact resistance, as well as future challenges and perspectives on the use of graphene in GaN-based LEDs.
Article
Chemistry, Physical
Zongyi Yue, Guangyi Wang, Zengguang Huang, Sihua Zhong
Summary: In this study, AZO and ITO films were successfully tuned as excellent passivation layers for c-Si surfaces, achieving effective minority carrier lifetime and outstanding optical properties through the optimization of annealing temperature and interfacial silicon oxide.
APPLIED SURFACE SCIENCE
(2024)
Article
Physics, Multidisciplinary
Dipankar Gogoi, T. D. Das
Summary: This study focuses on the numerical analysis of different transparent conducting oxides (TCOs) perspectives, and confirms the feasibility of using aluminum-doped zinc oxide (AZO) as TCO for organic solar cells (OSCs) due to its extended transparency, antireflection, mechanical flexibility, low-cost processing, and realistic performance. The contributions of each interfacial layer thickness, such as AZO as TCO, P3HT:PC61BM as organic absorbing layer (OAL), Spiro-OMeTAD as hole-transport layer (HTL), and ZnO as electron-transport layer (ETL), to the stability and reproducibility of the design OSC are investigated. The optimization of trap-state densities (N-t) and charge carrier mobility (mu(n,p)) in OAL is also performed to increase the diffusion length of excitons carriers (L-n,L-p) and achieve higher power conversion efficiency (PCE).
Article
Materials Science, Ceramics
Tingting Yao, Liyun Ma, Gang Li, Yong Yang, Shuyong Chen, Rumei Zhong, Tianqi Wang, Saiao Peng, Hongxue Shen, Yongkang Tang, Yang Yang, Jiaxin Xu, Jinlei Wang, Zhiping Gan
Summary: In this study, a light-trapping structure was successfully fabricated in a tri-layer transparent conductive film of AZO/PS/AZO. By optimizing the process parameters, the film exhibited high crystallinity, low resistivity, and high average haze value, making it suitable for transparent electrode applications, particularly in thin-film solar cells.
CERAMICS INTERNATIONAL
(2022)
Article
Engineering, Environmental
Ling Cai, Guangxue Chen, Bin Su, Minghui He
Summary: The novel preparation strategy using PDES as deep eutectic solvents in 3D printed TCEs improves transparency and stability, with efficient self-healing performance, thus offering broad application prospects in long-term pressure-resistant intelligent applications.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Marina Caretti, Elizaveta Mensi, Kessler Raluca-Ana, Linda Lazouni, Benjamin Goldman, Loi Carbone, Simon Nussbaum, Rebekah A. Wells, Hannah Johnson, Emeline Rideau, Jun-ho Yum, Kevin Sivula
Summary: Gas diffusion electrodes made from F-doped SnO2 coated SiO2 fiber felt substrates showed high porosity, roughness factor, and Young's Modulus. The conformal coating of FTO on the substrates allowed for the deposition of various semiconductors, resulting in comparable photoelectrochemical performance to flat FTO substrates. Gas phase H-2 production was achieved with a polymer semiconductor photocathode membrane assembly.
ADVANCED MATERIALS
(2023)
Article
Polymer Science
Jiake Wang, Zhongzheng Ma, Yan Wang, Jingwen Shao, Lifeng Yan
Summary: A deep eutectic solvent (DES) ionic gel with excellent conductivity and ultra-stretchable performance was fabricated using a dual self-catalytic system in mild conditions. It possesses anti-freezing and anti-drying properties, self-healing ability, and can restore its stretching and conductive performance even after breakage. These superior properties of the DES ionic gel offer new insights for designing novel gels in applications like tissue engineering, sensing, and wearable electronics.
MACROMOLECULAR RAPID COMMUNICATIONS
(2021)
Article
Nanoscience & Nanotechnology
Chuanyue Sun, Chengyi Hou, Hui Zhang, Yaogang Li, Qinghong Zhang, Hongzhi Wang
Summary: The study successfully synthesized a conductive organohydrogel with excellent environmental stability and mechanical properties, showing great potential in soft sensors. The addition of vinyl hybrid silica nanoparticles and the use of a binary solvent system improved the mechanical performance, adhesion, and UV-blocking capabilities of the organohydrogels.
Article
Chemistry, Physical
Joel Arriaga Davila, Jedrzej P. Winczewski, Manuel Herrera-Zaldivar, Edurado A. Murillo-Bracamontes, Cristian Rosero Arias, Nayely Pineda-Aguilar, Jorge L. Cholula-Diaz, Israel De Leon, Han Gardeniers, Arturo Susarrey Arce, Eduardo Martinez-Gurrera
Summary: This study reports the conformal atomic layer deposition of Al-doped ZnO (AZO) on three-dimensional (3D) shaped ZrO2 microarchitectures produced using two-photon lithography (TPL) for the first time. The influence of ZrO2 morphology, surface roughness, and crystallographic phase on the quality and properties of the deposited ZnO and AZO thin films is investigated. The AZO films exhibit n-type semiconductor behavior and have potential in the production of optoelectronic devices.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Alexander Axelevitch
Summary: Transparent conductive oxide (TCO) thin films, such as indium-tin oxide (ITO), are widely used in micro- and optoelectronics, with dynamic hot-probe measurement system being one method to extract the main parameters of the films. This method, demonstrated on commercial ITO films and ZnO:Al layers, can also be applied to other wide-bandgap semiconductors.
Article
Chemistry, Physical
Tao Wang, Yu-Zhou Wang, Li-Chao Jing, Qingxia Zhu, Anita Sagadevan Ethiraj, Wenming Geng, Ying Tian, Zeru Zhu, Zhili Meng, Hong-Zhang Geng
Summary: In this study, graphene was greenly fabricated for the first time using a wet ball milling method and natural honey as an exfoliation medium, integrated into a biodegradable substrate to form a 3D conductive network. The resulting electrode exhibited excellent optoelectronic performance and maintained stability after bending cycles and adhesion tests.
Article
Engineering, Environmental
Yan Zhao, Yan Zhang, Zhe Liu, Song Zhang, Dekui Song, Yu Zhai, Chunming Lu, Hongping Yan, Nan Liu
Summary: In this study, an ultra-conductive and transparent epidermal electrode was developed for simultaneous monitoring of brain electrical activity and hemodynamic activity. The electrode exhibited extremely low sheet resistance and high transmittance, allowing accurate and stable detection of electrophysiological signals and functional near-infrared spectroscopy (fNIRS) optical signals. The electrode also enabled the recording of weak EEG electrical signals and fNIRS optical signals, providing high temporal and spatial resolution for dual-model brain activity analysis.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Xinhuan Dai, Yong Long, Bing Jiang, Wenbin Guo, Wei Sha, Jiangwen Wang, Zifeng Cong, Jiwei Chen, Bingjun Wang, Weiguo Hu
Summary: Conductive hydrogels, due to their excellent mechanical flexibility, durability of deformation, and good electrical conductivity, have shown great potential in the field of flexible electronics. However, in order to ensure the stable operation of electronic devices in extreme environments, the development of environmentally robust hydrogels that can withstand extremely low temperatures and overcome dehydration is crucial. In this study, a graphene oxide incorporated hydrogel was developed, which exhibited excellent anti-freeze ability and maintained high sensitivity and stable output performances even at extremely low temperatures. This hydrogel provides a reliable and promising candidate for the new generation of wearable electronics.
Article
Physics, Applied
Yi Zhuo, Zimin Chen, Wenbin Tu, Xuejin Ma, Gang Wang
JAPANESE JOURNAL OF APPLIED PHYSICS
(2018)
Article
Physics, Applied
Wenbin Tu, Zimin Chen, Yi Zhuo, Zeqi Li, Xuejin Ma, Gang Wang
APPLIED PHYSICS EXPRESS
(2018)
Article
Engineering, Electrical & Electronic
Guangshuo Cai, Lei Qian, Peng Yang, Zimin Chen, Yi Zhuo, Ya Li, Yanli Pei, Gang Wang
IEEE ELECTRON DEVICE LETTERS
(2018)
Article
Crystallography
Hualong Wu, Hailong Wang, Yingda Chen, Lingxia Zhang, Zimin Chen, Zhisheng Wu, Gang Wang, Hao Jiang
JOURNAL OF CRYSTAL GROWTH
(2018)
Article
Optics
Zimin Chen, Yi Zhuo, Wenbin Tu, Zeqi Li, Xuejin Ma, Yanli Pei, Gang Wang
Article
Materials Science, Multidisciplinary
Jian Li, Yuanjia Lai, Yifeng Xu, Zimin Chen, Yanli Pei, Gang Wang
Article
Engineering, Manufacturing
Bing Yan, Zimin Chen, Yong Wang, Tao Wang, Bingfeng Fan, Xuejin Ma, Gang Wang
IEEE TRANSACTIONS ON COMPONENTS PACKAGING AND MANUFACTURING TECHNOLOGY
(2019)
Article
Engineering, Electrical & Electronic
Xing Lu, Xianda Zhou, Huaxing Jiang, Kar Wei Ng, Zimin Chen, Yanli Pei, Kei May Lau, Gang Wang
IEEE ELECTRON DEVICE LETTERS
(2020)
Article
Engineering, Electrical & Electronic
Haoxun Luo, Huaxing Jiang, Zimin Chen, Yanli Pei, Qian Feng, Hong Zhou, Xing Lu, Kei May Lau, Gang Wang
IEEE ELECTRON DEVICE LETTERS
(2020)
Article
Engineering, Manufacturing
Bing Yan, Tianyu Hu, Tao Wang, Zimin Chen, Gang Wang
IEEE TRANSACTIONS ON COMPONENTS PACKAGING AND MANUFACTURING TECHNOLOGY
(2020)
Article
Engineering, Electrical & Electronic
Haoxun Luo, Xianda Zhou, Zimin Chen, Yanli Pei, Xing Lu, Gang Wang
Summary: In this work, a high-performance vertical NiO/beta-Ga2O3 heterojunction p-n diode was successfully fabricated, showing high breakdown voltage and low specific ON-resistance. Through optimized fabrication process, superior performance was achieved, contributing significantly to the development of power devices.
IEEE TRANSACTIONS ON ELECTRON DEVICES
(2021)
Article
Chemistry, Multidisciplinary
Zimin Chen, Xing Lu, Yujia Tu, Weiqu Chen, Zhipeng Zhang, Shengliang Cheng, Shujian Chen, Hongtai Luo, Zhiyuan He, Yanli Pei, Gang Wang
Summary: The explosion of mobile data from the internet of things (IoT) is driving the development of 5G technology, which requires high-performance filters. This study explores the potential of epsilon-Ga2O3, a semiconductor with a higher piezoelectric constant than AlN, for use in piezoelectric devices. The results demonstrate the suitability of epsilon-Ga2O3 for application in 5G radio frequency (RF) front-ends.
Article
Chemistry, Physical
Yi Zhuo, Zimin Chen, Wenbin Tu, Xuejin Ma, Yanli Pei, Gang Wang
APPLIED SURFACE SCIENCE
(2017)
Article
Physics, Applied
Bingfeng Fan, Linchao Yan, Yuqin Lao, Yanfei Ma, Zimin Chen, Xuejin Ma, Yi Zhuo, Yanli Pei, Gang Wang
APPLIED PHYSICS LETTERS
(2017)
Article
Physics, Applied
Zimin Chen, Yi Zhuo, Wenbin Tu, Xuejin Ma, Yanli Pei, Chengxin Wang, Gang Wang
APPLIED PHYSICS LETTERS
(2017)