Article
Optics
Shun-Xin Li, Jia-Cheng Feng, Yang An, Hong Xia
Summary: High-quality perovskite microwire crystal heterojunction arrays were obtained using regioselective ion exchange, and photodetectors with superior responsivity and polarization sensitivity were fabricated.
PHOTONICS RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Tingting Yan, Xinya Liu, Xinyu Zhang, Enliu Hong, Limin Wu, Xiaosheng Fang
Summary: An inorganic-organic heterojunction is designed to effectively fill up the pinholes in the nanosheet film, resulting in a 100,000 times suppression of the device's dark current. Moreover, the inorganic-organic heterojunction improves the transport speed of charge carriers and response time, and provides excellent self-powered performance for the device. This photodetector shows potential applications in a UV communication system.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Jae Jun Lee, Dong Hee Shin, Dae Ho Jung, Si Duck Oh, Hosun Lee
Summary: The combination of high absorption LaVO3 and two-dimensional semiconductor material is ideal for high-performance broadband photodetector applications. MoS2/LaVO3 heterojunction photodetectors exhibit good properties, including a high photocurrent/dark current ratio, a high responsivity, and a fast response time. The loss of the responsivity is minimal after extended exposure to air, demonstrating the potential of MoS2/LaVO3 heterojunctions as self-powered optoelectronic devices.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Multidisciplinary
Liangliang Min, Wei Tian, Fengren Cao, Jun Guo, Liang Li
Summary: This research successfully controlled the phase distribution of 2D perovskites using a solvent additive method and hot-casting process, which improved photoresponse of devices. The optimized device showed high performance, stability, and fast response speed in optical-electronic conversion.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Jiawen You, Zijing Jin, Yuyin Li, Ting Kang, Kenan Zhang, Wenliang Wang, Mengyang Xu, Zhaoli Gao, Jiannong Wang, Jang-Kyo Kim, Zhengtang Luo
Summary: This study successfully synthesizes mixed-dimensional heterostructures, in which pseudo-1D tellurium is epitaxially grown on 2D monolayer transition metal dichalcogenides. Photoluminescence results confirm the efficient transfer of photogenerated carriers from the transition metal dichalcogenides to tellurium in the heterostructure. Additionally, the heterojunction photodetector exhibits self-driven behavior and high-performance.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Hao Wang, Yaliang Gui, Chaobo Dong, Salem Altaleb, Behrouz Movahhed Nouri, Martin Thomaschewski, Hamed Dalir, Volker J. Sorger
Summary: This article introduces a self-powered photodetector composed of topological insulators and transition metal chalcogenides, which has ultra-low dark current and high sensitivity, paving the way for the development of high-performance optoelectronic devices.
Article
Nanoscience & Nanotechnology
Hassan Algadi, Junna Ren, Asmma Alqarni
Summary: A self-powered and high-performance vertical photodetector based on solution-processed nitrogen-doped graphene quantum dots and all-inorganic perovskite nanocrystals has been successfully achieved. The vertical photodetector exhibited an extremely low dark current and superior figure of merits under illumination, and it operated without an external bias voltage. Its performance surpassed that of planar photodetectors and recently reported self-powered photodetectors based on carbon/perovskite and perovskite/perovskite heterostructures. These results pave the way for the fabrication of low-cost, self-powered, and high-performance optoelectronic devices using solution-processed heterojunctions.
ADVANCED COMPOSITES AND HYBRID MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Thi My Huyen Nguyen, Shin Kyu Lee, Sangmo Kim, Chung Wung Bark
Summary: The study demonstrates a new approach for partial discharge detection using flexible devices, with good performance, stability, and potential applications in various practical scenarios.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Engineering, Electrical & Electronic
Vishesh Manjunath, Prashant Kumar Mishra, Rachit Dobhal, Santosh Bimli, Parasharam M. Shirage, Somaditya Sen, Parvez A. Shaikh, Rupesh S. Devan
Summary: A NiO/CH3NH3PbI3 heterojunction was fabricated for optoelectronic devices, showing high performance in terms of stability and photoresponsivity, paving the way for ambient friendly and self-powered applications.
ACS APPLIED ELECTRONIC MATERIALS
(2021)
Article
Engineering, Multidisciplinary
Guo JunXiong, Li ShangDong, Lin Lin, Cai Ji, Chen JianBo, Wang ShiCai, Gou Xin, Ye JingHua, Luo ZhengHua, Huang Wen
Summary: This study presents a self-powered photodetector based on multilayer MoS2 and asymmetric graphene contacts. By utilizing the built-in electric field generated by van der Waals contact, the photodetector achieves high photoresponsivity and specific detectivity under zero-bias voltage, and exhibits a high ON/OFF current ratio and fast response time.
SCIENCE CHINA-TECHNOLOGICAL SCIENCES
(2022)
Article
Nanoscience & Nanotechnology
Lufan Jin, Yating Zhang, Mingxuan Cao, Yu Yu, Zhiliang Chen, Yifan Li, Zhenggeng Zhong, Xuebing Hua, Lingchao Xu, Chengyu Cai, Yongqi Hu, Xian Tong, Jianquan Yao
Summary: The self-powered PD based on all-inorganic cesium lead bromine perovskites QDs demonstrates fast response time, frequency and temperature independence, which is expected to play an important role in areas such as solar cells and energy harvesting.
Article
Chemistry, Multidisciplinary
Thi My Huyen Nguyen, Manh Hoang Tran, Chung Wung Bark
Summary: A highly crystalline and transparent ITO thin film was prepared and used as an electrode in a UVC photodetector. The ITO thin film exhibited good transparency and high electrical conductivity, and the photodetector developed on the prepared electrode showed excellent performance under 254 nm UVC illumination.
Article
Nanoscience & Nanotechnology
Shuang Qiao, Yuan Liu, Jihong Liu, Guangsheng Fu, Shufang Wang
Summary: By combining organic-inorganic hybrid perovskite layers of different band gaps and thicknesses, a series of narrowband perovskite heterojunction photodetectors with adjustable spectral range have been designed and prepared, showing excellent photoresponse performances and self-powered properties.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Navaneeth K. Krishnan, Anjusree Sreedharan, Srikrishna Sagar, Litty Thomas Manamel, Arka Mukherjee, Bikas C. Das
Summary: In this study, a self-powered broadband photodetector utilizing a lateral heterojunction between MoS2 and CuPc was demonstrated. The interfacial built-in potential and modulation of optoelectronic properties led to superior UV-Vis-NIR broadband photoresponse. Additionally, the device showed a faster response speed and self-powered operation, making it advantageous compared to conventional photogating-based devices.
APPLIED SURFACE SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Mingdi Zhang, Qieni Lu, Changlei Wang, Haitao Dai, Jiantao He, Zolkefl Mohamed, Xiaopeng Chen, Baozhen Ge
Summary: By incorporating silver nanoparticles and block copolymer F68, the performance and stability of flexible perovskite photodetectors have been enhanced, expanding their potential broad applications.
ORGANIC ELECTRONICS
(2021)
Review
Chemistry, Multidisciplinary
Xuan Zhao, Qi Li, Liangxu Xu, Zheng Zhang, Zhuo Kang, Qingliang Liao, Yue Zhang
Summary: 1D-ZnO plays a crucial role in photoelectrical devices construction due to its easily modulated morphology and band structure. By forming heterostructures with other materials, the functional diversity of 1D-ZnO is greatly enriched. Interface engineering can adjust the behavior of carriers in 1D-ZnO-based heterostructures to optimize its photoelectrical performance.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Review
Chemistry, Multidisciplinary
Yong Xie, Yu Sun, Huibing Tao, Xin Wang, Jing Wu, Kaikai Ma, Li Wang, Zhuo Kang, Yue Zhang
Summary: Efforts have been focused on high-performance electrocatalysts for water splitting to address the issue of fossil fuel scarcity. With the development of in situ techniques, understanding the dynamic service behaviors of electrocatalysts has become crucial for establishing lifetime structure-performance correlations. Critical challenges and prospects are discussed for establishing these correlations.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Review
Chemistry, Multidisciplinary
Xin Wang, Yuwei Zhang, Jing Wu, Zheng Zhang, Qingliang Liao, Zhuo Kang, Yue Zhang
Summary: Single-atom catalysis is a pivotal milestone in heterogeneous catalysis, with superior performance and atomic utilization. Recent developments have expanded the single-atom family through different motifs and substrates. This review aims to summarize and discuss the development and applications of 2D TMD-based single-atom catalysis, highlighting the importance of in situ characterization techniques.
Review
Chemistry, Multidisciplinary
Xin Wang, Jing Wu, Yuwei Zhang, Yu Sun, Kaikai Ma, Yong Xie, Wenhao Zheng, Zhen Tian, Zhuo Kang, Yue Zhang
Summary: Vacancy defect engineering has been widely used to shape the physicochemical properties of diverse catalysts. This review provides a comprehensive understanding of vacancy engineering in 2D TMDs-based electrocatalysis, covering its background, manufacturing, characterization, and application in the hydrogen evolution reaction. The review also explores the correlations between specific vacancy regulation routes and catalytic performance improvement, and discusses the future prospects of vacancy engineering in advanced defect catalysts.
ADVANCED MATERIALS
(2023)
Review
Chemistry, Multidisciplinary
Xiankun Zhang, Yanzhe Zhang, Huihui Yu, Hang Zhao, Zhihong Cao, Zheng Zhang, Yue Zhang
Summary: As silicon-based electronic devices face challenges of material performance decrease and interface quality degradation, ultrathin 2D materials are considered as potential candidates in future electronics due to their atomically flat surfaces and excellent immunity to short-channel effects. By freely stacking and forming high-quality heterostructure interfaces, all-2D electronics based on 2D van der Waals (vdW) interfaces can exhibit more comprehensive functionality and better performance. However, improving the compatibility of 2D material devices with silicon-based industrial technology remains a critical challenge.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Chenzhe Xu, Suicai Zhang, Wenqiang Fan, Feiyu Cheng, Haochun Sun, Zhuo Kang, Yue Zhang
Summary: By modifying the interface molecules for CsPbI3 perovskite, the electron transfer barrier is reduced and the crystal quality is improved, resulting in a decrease of trap-assisted charge recombination and interfacial energetic loss. As a result, the devices achieve an impressive efficiency of 20.98% and a record-low V-OC deficit of 0.451 V.
ADVANCED MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Jiayi Sun, Xuan Zhao, Haonan Si, Fangfang Gao, Bin Zhao, Tian Ouyang, Qi Li, Qingliang Liao, Yue Zhang
Summary: In this study, CsPbBr2I quantum dots (CQDs) with surface modulation were used to fabricate high-detectivity and stable photodetectors. The surface modulation not only passivates defects and inhibits vacancies, but also enhances hole transport capacity by modulating energy level mismatch. The assembled CsPbBr2I photodetectors demonstrated a responsivity of 0.375 A W-1, a detectivity of 1.12 x 10(13) Jones, and an on/off ratio of 10(4). Furthermore, the CsPbBr2I photodetectors exhibited excellent long-term stability for 12 weeks and could withstand 1000 bending cycles. This work provides a guideline for the development of perovskite in wireless optical communication.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Tian Ouyang, Xuan Zhao, Xiaochen Xun, Fangfang Gao, Bin Zhao, Shuxin Bi, Qi Li, Qingliang Liao, Yue Zhang
Summary: Self-powered photodetectors are crucial in UV communication, but suboptimal charge utilization hinders their performance. This study presents a self-powered photodetector designed to improve charge utilization using photothermal effect and enhanced conductivity. The device exhibits high responsivity and fast response time, and has been successfully applied in a UV communication system.
Article
Nanoscience & Nanotechnology
Li Gao, Xiankun Zhang, Huihui Yu, Mengyu Hong, Xiaofu Wei, Zhangyi Chen, Qinghua Zhang, Qingliang Liao, Zheng Zhang, Yue Zhang
Summary: Two-dimensional (2D) MoS2 is a promising channel material for next-generation integrated circuit (IC) transistors. However, the reliability of MoS2 is compromised by vacancy defects, particularly sulfur vacancies (V-S). Understanding the impact of these defects on transistor reliability has been challenging. In this study, we establish a simulated initiator to track the evolution of vacancy defects in MoS2 and their influence on transistor reliability.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Jiankun Xiao, Kuanglei Chen, Xiankun Zhang, Xiaozhi Liu, Huihui Yu, Li Gao, Mengyu Hong, Lin Gu, Zheng Zhang, Yue Zhang
Summary: Researchers have achieved ohmic contact between metal and monolayer MoS2 by introducing a large number of sulfur vacancies, which significantly reduces contact resistance and enables high-performance MoS2 FETs. The dominant factor driving enhanced electrical performance is the increased electron doping caused by sulfur vacancies. This study provides a simple method to promote the development of atomically thin integrated circuits.
Article
Materials Science, Multidisciplinary
Mengyu Hong, Xiankun Zhang, Yu Geng, Yunan Wang, Xiaofu Wei, Li Gao, Huihui Yu, Zhihong Cao, Zheng Zhang, Yue Zhang
Summary: Metal-semiconductor contacts play a crucial role in semiconductor devices. Researchers propose a nanobelt-assisted transfer strategy that enables the universal transfer of over 20 different types of electrodes. The contacts prepared using this strategy exhibit low Schottky barriers and adhere to the Schottky-Mott rule.
Article
Nanoscience & Nanotechnology
Lihua Wang, Xiaoyu He, Xiankun Zhang, Xiaofu Wei, Kuanglei Chen, Li Gao, Huihui Yu, Mengyu Hong, Zheng Zhang, Yue Zhang
Summary: This study reports an ultrahigh-rectification-ratio WSe2 homojunction diode achieved by semi-floating gate doping. The use of direct charge trapping mode and oxygen plasma treatment enhances the interface properties, charge transfer efficiency, and rectification performance.
ADVANCED ELECTRONIC MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Liangxu Xu, Xuan Zhao, Xiaochen Xun, Fangfang Gao, Lusen Gao, Shuxin Bi, Liubing Fan, Shuchang Zhao, Qingliang Liao, Yue Zhang
Summary: In this study, an omnidirectionally strain-unperturbed tactile array was prepared by manipulating the fiber orientations in quasi-homogeneous elastomer meshes. The tactile array exhibited high strain insensitivity and robustness even after severe mechanical deformation. By integrating the tactile array with a microcontroller, an accurate tactile interaction system was achieved under multiaxial tensile strain.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Review
Chemistry, Physical
Mohammed Ismail Beddiar, Xiankun Zhang, Baishan Liu, Zheng Zhang, Yue Zhang
Summary: This article reviews the progress in transforming bipolar 2D materials into unipolar p-type/n-type semiconductors, focusing on the factors influencing carrier behavior and the application of these conversion strategies in device performance tuning and new structure device construction.
Article
Materials Science, Multidisciplinary
Bin Zhao, Xuan Zhao, Qi Li, Xiaochen Xun, Tian Ouyang, Zheng Zhang, Zhuo Kang, Qingliang Liao, Yue Zhang
Summary: In this study, a reproducible and low-power multistate bio-memristor was developed by designing a chitosan-reduced graphene oxide interpenetrating network electrolyte. The bio-memristor showed stable resistive switching, reproducible multistate storage, and low power consumption.