Review
Chemistry, Physical
Shuang Xiao, Wei Qian, Shihe Yang
Summary: Perovskite optoelectronics is a rapidly growing field with great achievements, and the design and properties of perovskite-perovskite interfaced structures play a crucial role in improving device performance.
ADVANCED ENERGY MATERIALS
(2023)
Review
Chemistry, Multidisciplinary
Xun Han, Wenqiang Wu, Hao Chen, Dengfeng Peng, Li Qiu, Peiguang Yan, Caofeng Pan
Summary: Inorganic semiconductor arrays have transformed various areas of electronics and optoelectronics with their multifunctionality and large-scale integration. Metal halide perovskites are emerging as promising candidates for next-generation optoelectronic devices due to their excellent optoelectronic properties, processing ease, and compatibility with flexible substrates. Various patterning technologies have been employed to create perovskite arrays with nano/microstructured surfaces to enhance device performances, with applications including photodetectors, light-emitting diodes, lasers, and nanogratings.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Review
Chemistry, Multidisciplinary
Ziyi Guo, Junyao Zhang, Xu Liu, Lu Wang, Lize Xiong, Jia Huang
Summary: This article summarizes the recent advances in photodetectors (PDs) and optoelectronic synaptic devices (OSDs) based on organic semiconductors and halide perovskites. The physical/chemical properties and preparation methods of organic semiconductor/halide perovskite heterojunctions are briefly introduced. The development and innovative applications of PDs and OSDs based on organic semiconductor/halide perovskite heterojunctions are systematically presented. The article also discusses prospective challenges and probable strategies for the future development of optoelectronic devices based on organic semiconductor/halide perovskite heterojunctions.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Dawei Zhou, Peiyi Zhao, Junran Zhang, Xiaohong Jiang, Sichen Qin, Xu Zhang, Ran Jiang, Yifan Deng, Hanjun Jiang, Guixiang Zhan, Yan Luo, Huifang Ma, Lin Wang
Summary: Ultrathin hybrid perovskites have great potential in nanoscale optical and optoelectronic devices, but their compatibility with high-resolution patterning technology has been challenging. In this study, a flexible three-step method is developed to achieve high-resolution multicolor patterning on a single nanosheet of hybrid perovskite. The method has the potential to be applied in miniature optoelectronic devices and high-resolution displays.
Article
Chemistry, Applied
Saleem I. Qashou, A. A. A. Darwish, Ibrahim Ghabar
Summary: This study investigates the impact of an additional inorganic CuS layer on the charge transport properties between the ITO electrode and the organic material 2,7,12,17-tetra-tert-butyl-5,10,15,20-tetraaza-21H,23H-porphine (TTBTP). The findings show that the addition of the inorganic CuS layer reduces the built-in voltage and affects the values of Rs, Rsh, and n. The dark current density and applied voltage relationship confirms the theory of thermionic emission, while the power-law relation indicates a space charge limited current controlled by a distribution of trap levels. Furthermore, the additional inorganic layer enhances the photosensitivity, short-circuit current density, open-circuit voltage, and power conversion efficiency.
Article
Chemistry, Multidisciplinary
Xiaoting Zhu, Changsong Gao, Yiwen Ren, Xianghong Zhang, Enlong Li, Congyong Wang, Fangxu Yang, Jishan Wu, Wenping Hu, Huipeng Chen
Summary: A bilayer 2D molecular crystal (2DMC) p-n heterojunction is developed to achieve high-performance bidirectional synaptic behaviors. The 2DMC heterojunction-based field effect transistor (FET) devices exhibit typical ambipolar properties and remarkable responsivity. Excitatory and inhibitory synaptic behaviors can be realized by the same light stimuli under different gate voltages. A motion detection network based on the device is developed for recognizing classic motion vehicles in road traffic with high accuracy.
ADVANCED MATERIALS
(2023)
Review
Chemistry, Physical
Kunchan Wang, Zhuoyang He, Xinyue Li, Ke Xu, Qingping Zhou, Xiaowo Ye, Teng Zhang, Shenghao Jiang, Yanming Zhang, Bei Hu, Changxin Chen
Summary: This review summarizes the various BP-based junctions and their optoelectronic device applications. The formation, properties, and applications of BP-based junctions, including heterojunctions with other 2D semiconductors, p-n homojunctions, and metal Schottky junctions, are emphatically described. The challenge and prospect for the development and application of BP-based junctions are also discussed.
Article
Chemistry, Physical
Dong Shen, Wen-Cheng Chen, Ming-Fai Lo, Chun-Sing Lee
Summary: Decades of research have made organic optoelectronic devices like OLEDs commercially viable, with CT states playing a crucial role. Ground-state CTCs have been applied in various devices, while excited-state CTCs are mainly focused on exciplex emission and CT absorption. More systematic reviews on the application of CTCs in different organic devices are needed.
MATERIALS TODAY ENERGY
(2021)
Review
Materials Science, Multidisciplinary
Zachary A. VanOrman, Lea Nienhaus
Summary: Lead halide perovskite nanomaterials are at the forefront of energy harvesting and light-emitting applications, with unique defect tolerance and high photoluminescent quantum yields making them attractive for various optoelectronic applications.
Article
Materials Science, Multidisciplinary
Imtiaz Ahmad, Mohammed Abohashrh, Ammara Aftab, Hadiqa Aziz, Irum Fatima, Nimra Shahzadi, Sadia Ahmad, Tahir Muhmood
Summary: Impurity doping is widely used to enhance the optical, electrical, and magnetic properties of semiconductor nanocrystals. This review provides a critical overview of recent advances in the doping strategies and properties of transition metals, with a focus on Mn- and Cu-doped halide perovskites. The review summarizes synthetic methods, variations in structural and optoelectronic properties induced by doping, and the potential applications of Mn and Cu-doped perovskites in LEDs, solar cells, photocatalysis, and photodetectors.
APPLIED MATERIALS TODAY
(2023)
Review
Materials Science, Multidisciplinary
Jingshu Zhou, Kaiyao Xin, Xiangkai Zhao, Dongmei Li, Zhongming Wei, Jianbai Xia
Summary: The article summarizes the basic properties of several 2D materials used in photodetectors, reviews the progress in silicon photonic integrated photo-detectors based on 2D materials, and discusses the combination of some other traditional and 2D devices.
SCIENCE CHINA-MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Yong Li, Ming-Qing Zhang, Yan-Fang Liu, Ya-Xun Sun, Qing-Hua Zhao, Tian-Lu Chen, Yuan-Fu Chen, Shi-Feng Wang
Summary: Photocatalytic degradation is a promising technology for pollution control, but the preparation of efficient, low-cost photocatalysts remains a challenge. In this study, a TiO2(B)/TiO2(A) homogeneous heterojunction composite photocatalyst was successfully constructed, which significantly enhanced its photocatalytic degradation performance.
Article
Nanoscience & Nanotechnology
Hongxiao Duan, Lingyan Liang, Zhendong Wu, Hengbo Zhang, Lu Huang, Hongtao Cao
Summary: Optoelectronic synaptic devices with novel channel layers containing p-type CsPbBr3 nanoparticles in an IGZO film show improved visible-light photosensitivity and synaptic plasticity compared to pure IGZO counterparts. The composite device exhibits versatile synaptic behavior under low light stimuli and can imitate complex biological behaviors through gate bias control. This work discusses the band alignment between IGZO and NPs, as well as the excitation and decay processes of intrinsic and photoinduced carriers.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Yu Gan, Naihua Miao, Penghua Lan, Jian Zhou, Stephen R. Elliott, Zhimei Sun
Summary: In this study, we propose a robust design strategy for novel crystalline solids based on group-theory classification and high-throughput computation, which has successfully led to the discovery of new optoelectronic semiconductors. This design strategy offers a promising way to search for unknown high-performance functional materials.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Materials Science, Multidisciplinary
Hoang Van Ngoc, Huynh Thi Phuong Thuy, Vo Van On
Summary: C and Si atoms were doped into armchair germanene nanoribbons (AGeNRs) to study their electro-optical properties. Among the eight doping configurations examined, the 1:1 C-doped configuration showed the highest stability and optimal suitability for optoelectronic applications. The 1:3 C-doped configuration and all Si-doped configurations also exhibited extended band gaps, making them suitable for room-temperature field-transistor applications. Electronic and optical properties of the optimal configurations were analyzed and compared with the original configuration to determine differences.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Chao Zhang, Chen-Yue Zhu, Zhen Yang, Di-Hua Lin, Chun-Yan Wu, Shi-Rong Chen, Yi-Zhong Yang, Li Wang, Yu-Xue Zhou, Lin-Bao Luo
Summary: An addressable 8 x 8 photodetector array is fabricated by combining In2Se3 nanofilm with periodic inverse micropyramid-Si (PIMP-Si). The device exhibits excellent self-powered photoresponse, competitive performance, and satisfactory pixel-to-pixel uniformity, showing potential applications in full-color image sensing and video capturing.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Optics
Di Wu, Chenguang Guo, Longhui Zeng, Xiaoyan Ren, Zhifeng Shi, Long Wen, Qin Chen, Meng Zhang, Xin Jian Li, Chong-Xin Shan, Jiansheng Jie
Summary: Being able to sense broadband infrared light is crucial for various applications. Two-dimensional topological semimetals have been explored for this purpose due to their electronic structure and energy dispersion relation. However, their limitations in charge separation efficiency, noise level, and integration hinder their use in technology.
LIGHT-SCIENCE & APPLICATIONS
(2023)
Article
Nanoscience & Nanotechnology
Zhizhen Chang, Wei Deng, Xiaobin Ren, Xinyue Liu, Gan Luo, Yuan Tan, Xiujuan Zhang, Jiansheng Jie
Summary: This study reports a universal and effective methodology for fast printing of high-quality Sn-Pb mixed perovskite films at an unprecedented speed of 90 m h(-1) by altering the wetting and dewetting dynamics of perovskite inks with the underlying substrate. The high-speed printed Sn-Pb perovskite films have large perovskite grains (>100 μm) and excellent optoelectronic properties, yielding highly efficient self-driven NIR photodetectors with a large voltage responsivity over 4 orders of magnitude. The potential application of the self-driven NIR photodetector in health monitoring is also demonstrated.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Nanoscience & Nanotechnology
Jinjin Hei, Xue Li, Shuoen Wu, Pei Lin, Zhifeng Shi, Yongtao Tian, Xinjian Li, Longhui Zeng, Xuechao Yu, Di Wu
Summary: Conventional methods of chemical vapor deposition and mechanical exfoliation fail to meet the demands for integrated optoelectronics and systems. Therefore, we propose a simple selenization approach to grow wafer-scale 2D p-WSe2 layers with high uniformity and customized patterns. The fabricated self-driven broadband photodetector exhibits high responsivity, large specific detectivity, and remarkable nanosecond response speed.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Chen-hao Xu, Sheng-Hui Luo, Yang Wang, Xiao-Feng Shi, Can Fu, Jiang Wang, Chun-Yan Wu, Lin-Bao Luo
Summary: This study presents a solution method for a dual-band photodetector (PD) based on silicon nanowires /PbS nanocrystalline film n-n heterojunction. The device exhibits bias-selectable spectral response in the near-infrared (NIR) and short-wave infrared (SWIR) bands by adjusting the polarity of the bias voltage. It achieves high responsivities and detectivity in the NIR region, comparable to or even better than some commercial PDs, due to improved optical absorption and charge separation and collection efficiency through the heterojunction geometry. The study demonstrates the potential of detecting two distinct IR regions with the same pixel for future optoelectronic systems.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Lutao Li, Yun Hu, Yuan Chen, Chen Wang, Guoxiang Zhao, Xinyu Du, Chaoqiang Wang, Lingbo Xiao, Zheng Lu, Jiong Wang, Dan Wang, Jiansheng Jie, Jingsong Huang, Guifu Zou
Summary: High color purity is an important feature for single-crystal metal halide perovskite light-emitting diodes (LEDs). However, the absence of effective surface defect passivation hinders the achievement of high color purity in single-crystal perovskite LEDs. In this study, a fully wrapped structure using ultra-thin polymethyl methacrylate is proposed to passivate the surface of free-standing CsPbBr3 single-crystal films, leading to improved color purity and large luminescent area. The interaction between the C(sic)O bond in polymer chains and the Lewis acid PbBr2 is found to play a key role in surface passivation.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Yanling Xiao, Wei Deng, Jiajing Hong, Xiaobin Ren, Xiujuan Zhang, Jialin Shi, Fangming Sheng, Xiaohong Zhang, Jiansheng Jie
Summary: The development of a simple double-blade-coating printing technique using wetting-patterned substrates allows for the production of highly crystalline organic semiconductor (OSC) thin films. This method significantly reduces the number of nucleation events, resulting in thin films with single-crystal domains and high yield. The organic field-effect transistor array fabricated from these patterned OSC thin films exhibits excellent performance with an average mobility of 11.5 cm(2) V-1 s(-1), which is 12.5-fold higher than the reference sample fabricated using conventional single-blade coating. This approach has the potential to be widely applied to other soluble organic materials, enabling the fabrication of multicomponent integrated electronics.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Optics
Huanyu Zhang, Xiujuan Zhang, Chaoqiang Wang, Tingxiu Yu, Geng He, Ruofei Jia, Azhar Ali Ayaz Pirzado, Jie Lin, Jingsong Huang, Jun Peng, Jiansheng Jie, Xiaohong Zhang
Summary: A nonstoichiometric composition tuning strategy has been developed to improve the device performance of perovskite single-crystal light-emitting diodes (SC-PeLEDs) by enhancing the crystal quality, reducing trap density, and elevating the energy level of the perovskite single crystals.
LASER & PHOTONICS REVIEWS
(2023)
Article
Chemistry, Multidisciplinary
Jinhui Chen, Jinwen Wang, Shuai Chen, Jing Pan, Ruofei Jia, Chaoqiang Wang, Xiaofeng Wu, Jiansheng Jie, Xiujuan Zhang
Summary: Monolayer organic crystals offer a unique opportunity for studying the charge transport of organic semiconductors due to their 2D nature. However, large-scale growth of these crystals is challenging. This study proposes a self-limited epitaxial growth strategy to achieve large-area patterned growth of monolayer organic crystals. By confining molecular nucleation and crystallization in wetting patterns, single nuclei are formed, promoting the assembly of organic molecules. This approach has enabled the centimeter-sized patterned growth of mixed monolayer organic crystals, with potential applications in high-performance optoelectronic devices.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Jinwen Wang, Zheng Ren, Jing Pan, Xiaofeng Wu, Jiansheng Jie, Xiaohong Zhang, Xiujuan Zhang
Summary: For the first time, a method of anchored crystal-seed epitaxial growth is developed for wafer-scale growth of 2D organic semiconductor single crystals. The crystal seed is firmly anchored on the liquid surface, ensuring steady epitaxial growth. This approach effectively eliminates substrate defects and enhances the 2D growth of organic crystals, providing a new avenue for high-performance organic electronics.
ADVANCED MATERIALS
(2023)
Article
Engineering, Electrical & Electronic
Li Wang, Yan Pan, Jia-Le Xing, Jian-Bo Mao, Yong-Jin Ba, Lu Cao, Mo-Lin Wang, Chun-Yan Wu, Xiang Zhang, Lin-Bao Luo
Summary: In this study, a planar type self-powered short wavelength infrared narrowband Si photodetector was developed using a simple Schottky structure. The distance between the Schottky electrode and the light irradiation region was increased to enhance the device sensitivity and reduce the size. With the assistance of a pyramid microstructure, the required distance for sub 100 nm narrowband detection was effectively decreased. The obtained photodetector exhibited high wavelength selectivity and sensitivity due to the large number of surface states and pronounced light confinement effect of the pyramid microstructure. This work opens up a new avenue for achieving planar-type narrowband photodetectors with better integration capabilities for on-chip applications than vertical devices.
IEEE ELECTRON DEVICE LETTERS
(2023)
Article
Engineering, Electrical & Electronic
Chunyan Wu, Xishen Guo, Xia Wu, Jinxulong Gao, Jun Wang, Yizhong Yang, Li Wang, Yuxue Zhou, Linbao Luo
Summary: In this study, a self-powered periodic inverse micropyramid (PIMP)-Si/graphene photodiode with high responsivity, specific detectivity, and fast response speed was reported. The rise/fall time at zero bias upon 880 nm illumination were found to be 226/364 μs, respectively. The introduction of an ultrathin interfacial oxide layer was shown to passivate surface states and improve current stability, enabling high-quality Fourier single-pixel imaging.
IEEE ELECTRON DEVICE LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Longhui Zeng, Wei Han, Xiaoyan Ren, Xue Li, Di Wu, Shujuan Liu, Hao Wang, Shu Ping Lau, Yuen Hong Tsang, Chong-Xin Shan, Jiansheng Jie
Summary: A low-temperature self-stitched epitaxy approach was used to grow 2D palladium ditelluride (PdTe2) Dirac semimetal with excellent infrared photoresponse, enabling the fabrication of highly integrated mid-infrared imaging chips. The on-chip PdTe2/Si Schottky junction-based photodetector exhibited ultrabroadband photoresponse and high detectivity. This study paves the way for the low-temperature growth of 2D semimetals for uncooled mid-infrared sensing.
Article
Materials Science, Multidisciplinary
Feng-Xia Liang, Shi-Fu Li, Jie Yu, Liang-Liang Zhou, Jiang Wang, Can Fu, Xiang An, Jian-An Huang, Li Wang, Lin-Bao Luo
Summary: A series of MAPbBr(3-n)X(n) (X=Cl, I) single-crystal films with controllable thickness have been grown through space-limited inverse temperature crystallization, achieving filter-free narrowband photodetectors with peak responses at 505, 590 and 620 nm, corresponding to the green, yellow and red of traffic lights. These narrowband photodetectors demonstrate superior performance, with a maximum responsivity of 182 mA W^-1 and specific detectivity of 9.68 x 10(10) Jones, and a traffic light recognition assembly based on them shows good color recognition capability.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Materials Science, Multidisciplinary
Di-Hua Lin, Fang Wan, Shu-Chang Gong, Can Fu, Feng-Xia Liang, Lin-Bao Luo
Summary: Dual-band photodetectors (DBPDs) are widely used in multispectral information monitoring in both civil and military applications. This paper presents a novel DBPD fabricated using a silicon nanowire array, which exhibits dual-band absorption resulting from leaky mode resonances (LMRs) in the nanowires. Experimental results show two peak responsivities at 430 nm and 660 nm, matching well with simulations and confirming the practicality of this silicon-based wavelength-selective spectral detection device.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
