Article
Nanoscience & Nanotechnology
Ki Seok Kim, Min Seong Kim, Jusung Chung, Dongwoo Kim, I. Sak Lee, Hyun Jae Kim
Summary: We present a transparent and flexible polyimide (PI)-doped single-layer (PSL) phototransistor for visible light detection. By co-sputtering amorphous indium-gallium-zinc oxide (IGZO) and PI targets, the PSL is deposited on a SiO2 gate insulator, serving as both a channel layer and a visible-light absorption layer. The PI doping leads to improved optoelectronic characteristics, including higher photoresponsivity, photosensitivity, and specific detectivity, attributed to the induced subgap states. A flexible PSL phototransistor is also fabricated, demonstrating stable optoelectronic characteristics even after 10,000 bending tests.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Nanoscience & Nanotechnology
Y-C Chien, T-L Shen, W-K Wu, C-Y Li, H-T Chin, C-W Chang, T-Y Lin, S-H Chang, J-L Shen, Y-F Chen
Summary: This study demonstrates a ultrathin, transparent, dual-side emitting and flexible light-responsive white LED based on a GIS structure. It achieves a high emission efficiency of around 9% and is based on a single emissive material with broadband emission property and low toxicity.
MATERIALS TODAY NANO
(2022)
Article
Engineering, Electrical & Electronic
Shuvaraj Ghosh, Malkeshkumar Patel, Chanhyuk Choi, Junghyun Lee, Joondong Kim
Summary: In this study, a co-sputtered Mo-doped BiVO4 thin films-based self-powered transparent photodetector (TPD) was developed. The TPD device showed a high photo-to-dark current ratio and detectivity, and exhibited fast response speed and high visible transparency. This Mo:BiVO4-based TPD device explores the potential of BiVO4 in the field of transparent optoelectronics and onsite power generation.
ACS APPLIED ELECTRONIC MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Madan Sharma, Pallavi Aggarwal, Aditya Singh, Shuchi Kaushik, Rajendra Singh
Summary: This study presents a flexible photo-detector based on low-dimensional nanostructures, which shows a broadband photoresponse from visible to ultraviolet region. The optimized quasi-dry layer transfer process enhances the applicability of 2D materials at the industrial level. The transferred photodetector exhibits improved electrical properties and optoelectronic performance.
ACS APPLIED NANO MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Zhen Ge, Nuo Xu, Yu Zhu, Kai Zhao, Yanfeng Ma, Guanghui Li, Yongsheng Chen
Summary: A flexible hybrid organic photodetector (OPD) was designed and fabricated by integrating organic materials with three-dimensional graphene (3DG) film, enabling light detection from visible to mid-infrared range at room temperature with high responsivity and detection performance. This hybrid detector is compatible with flexible substrates, providing a new approach for flexible electronics.
Article
Materials Science, Multidisciplinary
Naveen Kumar, Malkeshkumar Patel, Joondong Kim, Chaehwan Jeong, Ching-Ping Wong
Summary: UV radiation can have chronic effects on human skin and eyes, but blocking it and utilizing its energy can lead to breakthroughs in medical field and energy production. In this study, a lightweight, flexible Ga2O3/Cu2O heterojunction was developed for photovoltaics and photodetectors, which showed UV blocking capability, high durability, and flexibility.
APPLIED MATERIALS TODAY
(2022)
Article
Materials Science, Multidisciplinary
Zesheng Lv, Supeng Zhang, Gang Wang, Hao Jiang
Summary: With the emergence of new applications such as underwater optical communication, the demand for photodetectors with specific characteristics is increasing. However, the complexity of device structure and process makes most gain-type photodetectors based on less-mature materials unsuitable for practical applications despite their high performance. Therefore, a simple InGaN/GaN phototransducer is proposed for high-performance visible-light photodetection.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Crystallography
Qiannan Ye, Xu Zhang, Rihui Yao, Dongxiang Luo, Xianzhe Liu, Wenxin Zou, Chenxiao Guo, Zhuohui Xu, Honglong Ning, Junbiao Peng
Summary: The article summarizes the progress of SnO2-based UV photodetectors in flexibility and transparency, and identifies feasible optimization directions and challenges for the future.
Article
Physics, Applied
Sining Huang, Qi Fan, Cuilian Xu, Binke Wang, Jiafu Wang, Baiyu Yang, Changhui Tian, Zhen Meng
Summary: A visible-light-transparent metasurface has been designed for achieving infrared-radar stealth, using indium tin oxide as the optically transparent material and flexible polyethylene terephthalate as the dielectric material. The fabricated structure showed high absorptivity and low IR emissivity, with good consistency between experimental and simulated results, demonstrating practical application potential in multifunctional stealth technology.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2021)
Article
Nanoscience & Nanotechnology
Yunxia Bao, Jianfu Han, Hongxing Li, Kai Huang
Summary: Muscovite mica, a natural material with excellent flexibility and flat surface, is integrated into flexible optoelectronic devices to produce a heat-resistant photodetector. The device exhibits stability, flexibility, fast response time, high responsivity, and detectivity. The work demonstrates great potential for flexible photodetectors and contributes to the development of flexible optoelectronic devices for practical applications in both room-temperature and high-temperature environments.
Article
Materials Science, Multidisciplinary
Shuxian Wang, Jiaming Song, Linghao Zong, Juanjuan Yang, Bingda Li, Feng Teng, Peng Hu, Haibo Fan, Xin Zhao
Summary: Researchers reported a SnP2S6-based metal-semiconductor-metal (MSM) photodetector with asymmetric electrode contacts. The device exhibited high responsivity and detectivity in the visible light region, and showed self-powered behavior.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Engineering, Electrical & Electronic
Taihao Chen, Yong Fang, Mengru Zhu, Zhiwei Zhao, Wei Lei, Zhuoya Zhu, Helong Jiang
Summary: Flexible dual-spectral carbon nanodots/flexible n-silicon heterojunction photodetectors with high responsivity and detectivity are reported. These detectors show photo response in UV illumination and only in forward bias under visible illumination. The photocurrent of the device remains high even under bending strain.
SENSORS AND ACTUATORS A-PHYSICAL
(2024)
Article
Materials Science, Multidisciplinary
Esra Aslan, Maharram Zarbali
Summary: In this study, Sb2S3 films were prepared by dip coating method at different temperatures, and photodetectors were also prepared using these films. The results show that the coating temperature significantly affects the crystallization and photoelectric properties of the films.
Article
Nanoscience & Nanotechnology
Ruofei Xing, Peng Shi, Dong Wang, Zhenfa Wu, Yufeng Ge, Yuzhi Xing, Lin Wei, Shishen Yan, Yufeng Tian, Lihui Bai, Yanxue Chen
Summary: This study successfully fabricates flexible self-powered photodetectors with a ZnO/CsPbBr3/gamma-CuI structure, which show excellent weak light detection and image formation performance, including high detectivity, rapid response speed, outstanding environmental stability, and mechanical flexibility.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Engineering, Electrical & Electronic
Shunli Wang, Chao Wu, Fengmin Wu, Fabi Zhang, Aiping Liu, Nie Zhao, Daoyou Guo
Summary: Wearable photodetectors have attracted great attention for their potential applications in smart monitoring, and self-powered technology is the future trend. This study successfully constructed an Ag NWs/a-GaO Schottky junction, demonstrating a DUV photodetector with excellent photoelectric performance and mechanical properties.
SENSORS AND ACTUATORS A-PHYSICAL
(2021)
Article
Chemistry, Multidisciplinary
Can Fu, Zhi-Yuan Li, Jiang Wang, Xiang Zhang, Feng-Xia Liang, Di-Hua Lin, Xiao-Feng Shi, Qun-Ling Fang, Lin-Bao Luo
Summary: In this study, simple-structured wavelength sensors were developed using Au/MAPbI3/Au photodetectors deposited on an MAPbI3 single crystal. The sensors could accurately distinguish incident-light wavelengths ranging from 265 to 860 nm with a resolution of less than 1.5 nm. The high-performance MAPbI3 wavelength sensor has the potential to drive research progress in perovskites for wavelength recognition and full-color imaging.
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
Jiarong Yao, Xinzi Tian, Bin Li, Zhaofeng Wang, Xiali Zhang, Jiansheng Jie, Fangxu Yang, Rongjin Li, Wenping Hu
Summary: A novel nonclassical crystallization mechanism is designed to reduce the defect density of organic single crystals and improve the mobility and optoelectronic properties of organic semiconductors. This research is of great significance for the development of next-generation electronics.
ADVANCED ELECTRONIC MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Jiarong Yao, Lingjie Sun, Yanling Xiao, Jinyu Liu, Jiansheng Jie, Xuying Liu, Fangxu Yang, Yajing Sun, Rongjin Li, Wenping Hu
Summary: This study investigates the relationship between surface free energy and crystallization tendency of 2D organic crystals, and proposes a surface free energy anisotropy factor to measure this tendency. Two organic compounds were studied, and the one with a larger surface free energy anisotropy factor showed a higher tendency for 2D crystallization.
SCIENCE CHINA-MATERIALS
(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
Engineering, Electrical & Electronic
Kunnan Zhou, Longqiang Shan, Yuliang Zhang, De Lu, Yuanming Ma, Xing Chen, Linbao Luo, Chunyan Wu
Summary: In this study, an AlGaN/GaN HEMT-based ultraviolet photodetector (UVPD) was fabricated by fluorine plasma treatment using C4F8 gas. The device exhibited a significantly reduced dark current and effectively suppressed the persistent photoconductivity (PPC) effect, resulting in a high responsivity of 1.3 x 10(4) A W-1 and a high specific detectivity of 1.8 x 10(15) Jones. This work provides a facile and cost-effective strategy for the fabrication of high-performance AlGaN/GaN HEMT-based UVPDs.
IEEE ELECTRON DEVICE LETTERS
(2023)
Article
Engineering, Electrical & Electronic
Li Wang, Xiu-Dong He, Quan-You Wang, Ning Qi, Song-Yun Tian, Mo-Lin Wang, Chun-Yan Wu, Ji-Gang Hu, Lin-Bao Luo
Summary: The state of each flow is crucial for many network functions. This paper focuses on per-flow cardinality and presents a new problem: online query of per-flow cardinality. Three solutions, On-vHLL, Ton-vHLL, and Aton-vHLL, are proposed with O(1) time complexity for query operation. These techniques involve the redesign of vHLL with incremental update units (IUUs) to reduce time complexity, the application of TailCut compression technique to save memory cost, and the addition of a prefilter based on min-heap for better accuracy in Ton-vHLL.
IEEE TRANSACTIONS ON ELECTRON DEVICES
(2023)
Article
Materials Science, Multidisciplinary
Yue Xing, Jiang-Xu Yang, Guang-Yong Zou, Can Fu, Yan Pan, Yu-Tian Xiao, Jiang Wang, Yan Wang, Lin-Bao Luo
Summary: Researchers have developed a high-resolution wavelength sensor by assembling two back-to-back monolayer graphene/Si/monolayer graphene heterojunctions. This device shows excellent photoelectric properties and can accurately estimate the wavelength of incident light in the range from 260 to 1050 nm, demonstrating a high resolution of 1 nm across a broadband wavelength from 260 to 1000 nm. This study provides potential promise for future spectral sensing applications.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Jinle Fan, Xuefeng Hu, Weiwei Qin, Ming Zhou, Zhi-Yuan Liu, Shou-Jing Gao, Li-Ping Tan, Lin-Bao Luo, Wei Zhang
Summary: By precisely controlling the selenization engineering, orthorhombic PdSe2 and monoclinic PdSe2 crystals were successfully integrated. The hybrid O/M-PdSe2 nanostructures were fabricated for the first time, and they exhibited high responsivity as a broadband photodetector and fast response and recovery times as a gas sensor.
ACS APPLIED NANO MATERIALS
(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
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
Engineering, Electrical & Electronic
Zhen-Yu Zhang, Zhi-Xiang Zhang, Meng Shen, Cui-Yun Zhang, Can Fu, Xiang An, Jiang Wang, Xiang Zhang, Lin-Bao Luo
Summary: The study reports a narrowband blue light photodetector based on CH3NH3PbBrCl2 single crystal and its filterless application in blue light hazard detection. The photodetector is only sensitive to light between 400 and 500 nm, allowing for accurate detection of blue light hazard levels. With the introduction of back-end circuits, the photodetector has been applied to a portable blue light hazard detection system, showing potential applications in the future healthcare field.
IEEE TRANSACTIONS ON ELECTRON DEVICES
(2023)
Article
Materials Science, Multidisciplinary
Na Zhang, Fakun Wang, Pengyu Li, Yi Liang, Hao Luo, Decai Ouyang, Linbao Luo, Jinsong Wu, Yinghe Zhao, Yuan Li, Tianyou Zhai
Summary: In this study, a novel 2D hybrid heterostructure of bismuth selenide/oxyselenide with the coexistence of lateral and vertical interfaces is reported. The hybrid structure provides a large interface area and a wide depletion region, significantly improving the device's optoelectronic performances. The photodetectors exhibit reduced dark current and ultrafast photoresponse rate, and demonstrate outstanding image sensing capability over a wide spectral range.
Article
Materials Science, Multidisciplinary
Haoyu Jiang, Zhengjun Lu, Wei Deng, Fengquan Qiu, Yujian Zhang, Jialin Shi, Jiansheng Jie, Xiujuan Zhang
Summary: This paper presents a lateral homoepitaxy growth method that is compatible with scalable solution printing techniques, enabling the fabrication of centimeter-scale organic semiconductor single crystal arrays. The approach achieves high-uniformity morphology and low trap carrier density, leading to significantly improved organic field-effect transistor performance.
ACS MATERIALS LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Abu Talha Aqueel Ahmed, Sankar Sekar, Shubhangi S. Khadtare, Nurul Taufiqu Rochman, Bathula Chinna, Abu Saad Ansari
Summary: In this study, MnCo2S4 nanosheet catalyst was successfully synthesized and found to exhibit superior performance in hydrogen evolution. Compared to MnCo2S4, MnCo2S4 showed low overpotentials, moderate Tafel slope, and excellent sustainability. The outstanding performance can be attributed to the increased number of electrochemically active sites and enhanced electronic conductivity on the catalyst surface.
Article
Chemistry, Multidisciplinary
Victor V. Maltsev, Elena A. Volkova, Elizaveta V. Koporulina, Diana D. Mitina, Vladimir L. Kosorukov, Anna I. Jiliaeva, Daniil A. Naprasnikov, Konstantin N. Gorbachenya, Viktor E. Kisel
Summary: The phase relationships, crystal properties and luminescence kinetics of two complex systems were studied, including unit cell parameters, segregation coefficients of impurities, and lifetimes of energy levels.
Article
Chemistry, Multidisciplinary
Xiaoman Zhang, Wangwang Xu, W. J. Meng, Andrew C. Meng
Summary: This study successfully grew high-quality single crystal AlScN nanowires through ultra-high vacuum reactive sputtering technique and characterized their structure and properties. The nanowires exhibit significantly reduced mosaic spread and predominantly single ferroelectric domains, as well as a high piezoelectric constant.
Article
Chemistry, Multidisciplinary
Tom E. de Vries, Elias Vlieg, Rene de Gelder
Summary: Networks are important for describing relationships between people, roads between cities, reactions between chemicals, and other interactions. Bipartiteness, dividing the network into two groups, can facilitate the study of the network's structure. We have developed an algorithm that can find a near-optimal bipartisation within a reasonable time frame and used it to uncover the hidden structure of the CSD cocrystal network.
Article
Chemistry, Multidisciplinary
Chuchu Han, Jing Yang, Xin Zhang, Aisen Li, Jiang Peng
Summary: An elastic crystal based on a photo-reactive acylhydrazone derivative is reported, which exhibits reversible bending behavior under UV irradiation and heating. The crystal undergoes reversible E<->Z isomerization under light and heating conditions. The crystal demonstrates excellent elastic properties and the bending can be controlled to control the output direction of red light.
Article
Chemistry, Multidisciplinary
Lingfeng Zhang, Yu Wang, Yefeng Wang, Shuai Liu, Na Zhang, Mingmin Yang, Haixia Ma, Zhaoqi Guo
Summary: This study designs and synthesizes a series of high-energy salts compounds without heavy metal ions and azide groups. The molecular structures and stability of the compounds are confirmed through single-crystal X-ray diffraction and intermolecular interaction analysis. Furthermore, the thermal stability, energetic properties, and electrical initiation properties of the compounds are investigated, suggesting their potential as primary explosives.
