Article
Chemistry, Physical
Md Mehedi Hasan, Eric Moyen, Jewel Kumer Saha, Md Mobaidul Islam, Arqum Ali, Jin Jang
Summary: Phototransistors capable of detecting visible light were fabricated using solution processed zinc oxide channel and zirconium oxide gate insulator thin film transistors, with room temperature synthesized perovskite quantum dots as the active layer. The devices exhibited enhanced photocurrent under visible light illumination, with high responsivity and detectivity, especially under green light. The results are relevant for the development of low cost and low energy consumption phototransistors operating in the visible range.
Article
Engineering, Electrical & Electronic
Yuzhi Li, Shiben Hu, Chan Guo, Siting Chen, Jiantai Wang, Shenghan Zou, Zhangxu Pan, Yue Zhou, Linfeng Lan, Zheng Gong
Summary: In this study, we proposed a method to fabricate sputtered metal-oxide thin-film transistors (TFTs) using solution-processed film targets. The sputter-prepared TFTs based on solution-processed film targets showed superior performance compared to conventional solution-processed counterparts. This method also demonstrated the potential of using solution-processed film targets to fabricate a wide range of sputtered metal-oxide TFTs.
IEEE ELECTRON DEVICE LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Wangying Xu, Tao Peng, Yujia Li, Fang Xu, Yu Zhang, Chun Zhao, Ming Fang, Shun Han, Deliang Zhu, Peijiang Cao, Wenjun Liu, Youming Lu
Summary: Solution-processable transparent metal oxide thin-film transistors (TFTs) have great potential for large-scale optoelectronics, but their current performance is poor. In this research, a novel ultrathin crystalline indium-boron-oxide (In-B-O) channel layer was created to improve the performance of TFTs. B doping was found to suppress defects and improve electrical performance. By introducing a water-processed high-K ZrO2 dielectric, the TFTs exhibited excellent device performance and bias stress stability.
Article
Nanoscience & Nanotechnology
Yutong Liu, Yang Yu, Tianzhi Li, Yihong Hu, Ranjith Unnithan, Efstratios Skafidas
Summary: This work presents a solution-processed transparent indium gallium zinc oxide (IGZO) thin film transistor with a low temperature-annealed hafnium oxide dielectric layer. By reducing the post-annealing temperatures for the sol-gel hafnium dioxide thin film to below 200°C, it becomes possible to deposit the metal oxide dielectric on a wider range of substrates. The fabricated devices demonstrate excellent characteristics, including high field-effect mobilities, low subthreshold swing, high on/off ratios, and near-zero threshold voltages when operated at low-operating voltages.
ADVANCED ELECTRONIC MATERIALS
(2023)
Article
Engineering, Electrical & Electronic
Wensi Cai, Mengchao Li, Shirong Lu, Qingkai Qian, Zhigang Zang
Summary: In this study, a solution-based growth method of InZnO/AlInZnO heterojunction channel layers was reported and implemented in high-performance thin-film transistors. It was found that the heterojunction transistors exhibited band-like electron transport and significantly higher current ON/OFF ratio and mobility values compared to single-layer IZO and AIZO devices. The improvement was attributed to the presence of confined free electrons at the sharp heterointerface induced by the large conduction band offset between IZO and AIZO. Further channel engineering allowed the achievement of high-performance heterojunction oxide TFTs with excellent stability and potential in next-generation printable electronics.
IEEE TRANSACTIONS ON ELECTRON DEVICES
(2023)
Article
Computer Science, Information Systems
Fei Shan, Hao-Zhou Sun, Jae-Yun Lee, Seungmoon Pyo, Sung-Jin Kim
Summary: The study demonstrates that high-performance In2O3 TFTs can be prepared at low temperatures using FLA-centered annealing technology, leading to improved mobility through enhanced formation of M-O lattices and stability improvements.
Article
Chemistry, Multidisciplinary
Minh Nhut Le, Kang-Jun Baeg, Kyung-Tae Kim, Seung-Han Kang, Byung Doo Choi, Chan-Yong Park, Seong-Pil Jeon, Sol Lee, Jeong-Wan Jo, Seonhyoung Kim, Jun-Gu Park, Dongil Ho, Jongin Hong, Miso Kim, Han-Ki Kim, Choongik Kim, Kwanpyo Kim, Yong-Hoon Kim, Sung Kyu Park, Myung-Gil Kim
Summary: Stress-diffusive organic-inorganic hybrid superlattice nanostructures have been developed to overcome the mechanical limitations of metal oxides in flexible electronic applications, providing high electrical conductivity and mechanical stability.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Honglong Ning, Zhihao Liang, Xiao Fu, Rihui Yao, Zhuohui Xu, Tian Qiu, Zhao Yang, Chunyuan Hu, Wei Xu, Junbiao Peng
Summary: In this study, a dual solvent system was used to modify the molecular morphology of PVA, resulting in reduced leakage current density and improved performance of PVA films. Optimization of the precursor solution configuration sequence further enhanced the properties of the PVA film. The changes in molecular morphology were evidenced by measurements of solution viscosity and surface tension, ultimately leading to improved application of PVA films in TFT devices.
ORGANIC ELECTRONICS
(2022)
Article
Engineering, Electrical & Electronic
Zhigan Wang, Tingting Zhao, Jun Li, Jianhua Zhang
Summary: In this article, Ytterbium (Yb)-doped Indium-oxide (In2O3)-based thin-film transistor (TFT) prepared by solution-processed was investigated. Indium-Yb-oxide (InYbO) films with different Yb-doping concentrations were prepared to study the variations in physical properties. The results showed that Yb-doping improved the microstructure and surface roughness of In2O3 films and reduced oxygen vacancy defects. The InYbO-TFT with 1 mol% Yb concentration exhibited optimal electrical performance and improved positive bias stability.
IEEE TRANSACTIONS ON ELECTRON DEVICES
(2023)
Article
Chemistry, Multidisciplinary
Taoyu Zou, Hyun-Jun Kim, Soonhyo Kim, Ao Liu, Min-Yeong Choi, Haksoon Jung, Huihui Zhu, Insang You, Youjin Reo, Woo-Ju Lee, Yong-Sung Kim, Cheol-Joo Kim, Yong-Young Noh
Summary: Semiconducting ink based on 2D single-crystal flakes with dangling-bond-free surfaces enables the implementation of high-performance devices on form-free substrates. The lack of solution-processed p-type 2D semiconducting inks with high mobility is an obstacle to the development of complementary integrated circuits. This study reports a versatile strategy of doping with Br-2 to enhance the hole mobility by orders of magnitude for p-type transistors with 2D layered materials.
ADVANCED MATERIALS
(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
Engineering, Electrical & Electronic
Chuan Yu Han, P. T. Lai, Wing Man Tang
Summary: High-performance pentacene organic thin-film transistors with Hf-0.13 La0.87O gate dielectric and Pd gate electrode show high carrier mobility on both Si and PI substrates, with good stability after exposure to air for 30 days without encapsulation.
IEEE ELECTRON DEVICE LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Yuan Liu, Xiaokun Wen, Wenyu Lei, Li Yang, Pengzhen Zhang, Yuhui Zhang, Haixin Chang, Wenfeng Zhang
Summary: In this study, high-performance and low-power polycrystalline molybdenum ditelluride (MoTe2) thin film transistors (TFTs) were systematically reported using chemical vapor deposition, with improved device performance through solution-processed high-k dielectric.
ADVANCED MATERIALS INTERFACES
(2022)
Article
Physics, Applied
Ablat Abliz, Xiongxiong Xue, Xingqiang Liu, Guoli Li, Liming Tang
Summary: The study found that N/H co-doping can significantly enhance the electrical performance of ZnO thin-film transistors, mainly due to the reduction of defect concentration and interface trap density after co-doping.
APPLIED PHYSICS LETTERS
(2021)
Article
Polymer Science
Zhengran He, Ziyang Zhang, Kyeiwaa Asare-Yeboah, Sheng Bi, Jihua Chen, Dawen Li
Summary: This study demonstrated the use of a metal-containing semicrystalline polymer as an additive to mediate the thin film morphology of solution-grown, small-molecule organic semiconductors, resulting in improved performance of organic thin film transistors.
Article
Engineering, Chemical
Anton B. Kornberg, Michael R. Thompson, Shiping Zhu
Summary: An approach using controlled crazing and post-polymerization was used to incorporate a nanoscaled conductive co-continuous network into commercial ENGAGE(TM) Polyolefin Elastomers (POEs). This approach involved stretching POE films in a reactive mixture of acrylic polymerization precursors to promote crazing and grow a rigid acrylic hydrogel phase. The hydrogel phase provided ion conductivity to the POE.
CANADIAN JOURNAL OF CHEMICAL ENGINEERING
(2023)
Editorial Material
Engineering, Chemical
Andrew Nick Hrymak, Robert Pelton, Shiping Zhu
CANADIAN JOURNAL OF CHEMICAL ENGINEERING
(2023)
Article
Engineering, Environmental
Jierui Wang, Jialin Yang, He Zhu, Bo-Geng Li, Shiping Zhu
Summary: The construction of MOF monoliths can overcome the limitations of MOF powders, such as pressure drop, mass transfer inefficiency, and operational complexities. However, challenges still exist in terms of pore clogging, pore structure tuning, and mechanical properties. In this study, nearly pure ZIF-8 monoliths with hierarchical pore structure were successfully prepared by converting amorphous ZIF-8/ZnO nanoparticles into continuous ZIF-8 skeleton. These monoliths exhibited low bulk densities, high BET surface areas, and good mechanical properties. They also demonstrated high catalytic activity and stability in a continuous flow reactor for the Knoevenagel reaction. This work presents a valuable approach for the application of MOF-based monoliths in adsorption, separation, catalysis, and effluent treatment.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Guoqing Chen, Xiwei Guo, Chang Yang, He Zhu, Qi Zhang, Shiping Zhu
Summary: This paper reports the preparation of a novel type of underwater adhesive through in situ coacervation using commercially available materials. The adhesive exhibits superstrong underwater adhesion and excellent water-resistant performance, making it suitable for versatile applications in different environments.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Xiwei Guo, Jiaheng Liang, Zhifen Wang, Jianliang Qin, Qi Zhang, Shiping Zhu, Kun Zhang, He Zhu
Summary: A polycaprolactone-based polyurethane elastomer is designed and prepared to meet the demand for tough, recyclable, and degradable elastomers. It exhibits high toughness and fracture energy, can be recycled multiple times without losing mechanical properties, and can be degraded by lipase. The elastomer also possesses good biocompatibility and promotes wound healing, making it suitable for applications in biomedicine, flexible electronics, and robotics.
ADVANCED MATERIALS
(2023)
Editorial Material
Engineering, Chemical
Joao B. P. Soares, Alexander Penlidis, Hidetaka Tobita, Shiping Zhu
CANADIAN JOURNAL OF CHEMICAL ENGINEERING
(2023)
Review
Engineering, Environmental
Jierui Wang, He Zhu, Shiping Zhu
Summary: Metal-organic frameworks (MOFs) have garnered much attention for their unique properties, but their powder form limits their industrial applications. This review explores the use of interfacial techniques to shape MOFs into ordered superstructures, such as 0D, 1D, 2D, and 3D structures. The advancements in gas-solid, gas-liquid, liquid-solid, and liquid-liquid interfaces are comprehensively summarized, and future research directions and challenges are discussed briefly.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Xiaoqing Ming, Yifeng Sheng, Le Yao, Xiangrui Li, Yangyu Huang, He Zhu, Qi Zhang, Shiping Zhu
Summary: In this study, an anti-swelling conductive hydrogel was developed based on a polyampholyte copolymer. The hydrogel exhibited high transparency, remarkable mechanical properties, and good ionic conductivity. It was capable of sensing accurate and stable electro-mechanic responses, making it suitable for strain sensors in monitoring human motions both in air and underwater. Furthermore, the unique material allowed for dynamic information storage.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Yang Xiang, Xiwei Guo, He Zhu, Qi Zhang, Shiping Zhu
Summary: Previous research has mainly focused on improving the Seebeck coefficient and electrical conductivity while neglecting thermal conductivity. In this study, an aqueous biphasic system is introduced as a solvent to fabricate electrolytes for liquid-state thermocells. The aqueous biphasic electrolytes can provide different solvation environments and suppress thermal convection, leading to an increase in the Seebeck coefficient and a decrease in thermal conductivity. Experimental results show that using the aqueous biphasic electrolyte leads to a doubling of the Seebeck coefficient and an over 5 times improvement in output power for the thermocell. Furthermore, using porous graphite felt as the electrode material can further improve the output power by over 7 times.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Computer Science, Artificial Intelligence
Qinyao Chang, Shiping Zhu
Summary: Inspired by human vision attention mechanism, this study proposes a saliency detection model, TSFP-Net, which utilizes multilevel features and time information to improve accuracy. The model extracts multiscale temporal-spatial features from input video frames and generates a saliency map through hierarchical decoding. Experimental results demonstrate that the proposed method outperforms state-of-the-art methods on video saliency benchmarks.
COGNITIVE COMPUTATION
(2023)
Article
Materials Science, Multidisciplinary
Xiangyang Liu, Qi Zhang, He Zhu, Shiping Zhu
Summary: The increase in CO2 concentration in the atmosphere has led to global warming, and adsorption is considered an effective method for CO2 capture and stabilization. Metal-organic frameworks (MOFs) are promising materials for carbon capture, but using MOF powders directly may lead to practical issues. A phase inversion strategy is reported here to prepare SIFSIX-3-Ni@PAN composite beads with hierarchically porous structure and good mechanical stability. The obtained materials have high CO2 capture capacity even at low CO2 concentrations.
MACROMOLECULAR MATERIALS AND ENGINEERING
(2023)
Editorial Material
Polymer Science
Tian-Tian Wang, Yin-Ning Zhou, Zheng-Hong Luo, Shiping Zhu
Summary: This article introduces the importance of dispersity in the field of polymerization and traces the development of explicit equations for calculating dispersity. It highlights the application and mathematical manipulations of these equations in reversible-deactivation radical polymerization. Additionally, it showcases their role in emerging applications.
Article
Materials Science, Multidisciplinary
Yuanfeng Wang, Zilin Yu, Jinhao Xie, Lei Ding, Jiechang Liang, Wenqing He, Shiguo Chen, Shiping Zhu
Summary: By imitating the muscle-cartilage structure of Skate fin and using a twill cotton fabric as the supporting cartilage, the mechanical strength and environmental tolerance of SRP actuators are improved. With the unique twill pattern and micro-nano substructure of the fabric layer, the prepared SRP actuator exhibits anisotropic actuation and fast wet recovery, enhancing its versatility.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Polymer Science
Wenlian Qiu, Yi Huang, He Zhu, Qi Zhang, Shiping Zhu
Summary: We report a biomimetic dry underwater adhesive that is free of catechol chemistry and can adhere well to various substrate surfaces underwater. The adhesive is prepared by ternary copolymerization of monomers with nonphenolic aromatic groups, cations, and polar side chains, and exhibits hydrophobicity, mechanical toughness, and good interfacial bonding in water.
Article
Chemistry, Multidisciplinary
Le Yao, Xiaoqing Ming, Chengjiang Lin, Xiaozheng Duan, He Zhu, Shiping Zhu, Qi Zhang
Summary: This article reports a humidity-responsive ionogel based on a poly(benzyl methacrylate) matrix, which shows an anomalous decrease in ionic conductivity upon increased humidity. The conductive pathway within the ionogel can be shut down spontaneously above a critical relative humidity but perfectly reverses when the ambient humidity drops.
