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Hybrid 2D/3D Graphitic Carbon Nitride-Based High-Temperature Position-Sensitive Detector

Energy & Environmental Materials 2024年第1期7卷 275-283页

作者： Xuexia Chen Dongwen Yang Xun Yang Qing Lou Zhiyu Liu Yancheng Chen Chaofan Lv Lin Dong Chongxin Shan Henan Key Laboratory of Diamond Optoelectronic Materials and Devices Key Laboratory of Material PhysicsMinistry of EducationSchool of Physics and MicroelectronicsZhengzhou UniversityZhengzhou 450052China

Ultraviolet position-sensitive detectors(PSDs)are expected to undergo harsh environments,such as high temperatures,for a wide variety of applications in military,civilian,and ***,no report on relevant PSDs operating at high temperatures can be found up to ***,we design a new 2D/3D graphitic carbon nitride(g-C_(3)N_(4))/gallium nitride(GaN)hybrid heterojunction to construct the ultraviolet high-temperature-resistant *** g-C_(3)N_(4)/GaN PSD exhibits a high position sensitivity of 355 mV mm^(-1),a rise/fall response time of 1.7/2.3 ms,and a nonlinearity of 0.5%at room *** ultralow formation energy of-0.917 eV atom^(-1)has been obtained via the thermodynamic phase stability calculations,which endows g-C_(3)N_(4)with robust stability against *** merits of the strong built-in electric field of the 2D/3D hybrid heterojunction and robust thermo-stability of g-C_(3)N_(4),the g-C_(3)N_(4)/GaN PSD delivers an excellent position sensitivity and angle detection nonlinearity of 315 mV mm^(-1)and 1.4%,respectively,with high repeatability at a high temperature up to 700 K,outperforming most of the other counterparts and even commercial silicon-based *** work unveils the high-temperature PSD,and pioneers a new path to constructing g-C_(3)N_(4)-based harsh-environment-tolerant optoelectronic devices.

关键词： graphitic carbon nitride high-temperature stability lateral photovoltaic effect position-sensitive detectors two-dimensional materials

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Position-sensitive detectors based on two-dimensional materials

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Nano Research 2021年第6期14卷 1889-1900页

作者： Wenhui Wang Junpeng Lu Zhenhua Ni School of Physics and Key Laboratory of MEMS of the Ministry of Education Southeast UniversityNanjing211189China

Two-dimensional(2D)materials have attracted great attention in optoelectronics because of their unique structure,optical and electrical *** high-performance photodetectors and implementing their applications are eager to promote the development of 2D ***-sensitive detector(PSD)is an optical inspection device for the precise measurements of position,distance,angle,and other relevant physical *** is a widely used component in the fields of tracking,aerospace,nanorobotics,and so ***,PSD is also a photodetector based on the lateral photovoltaic effect(LPE).This article reviews recent progress in high-performance PSD based on 2D *** high-sensitive photodetectors and LPE involved in 2D photodetectors are firstly ***,we introduce the research progress of PSD based on 2D materials and analyze the carrier dynamics in different device ***,we summarize the functionalities and applications of PSD based on 2D materials,and highlight the challenges and opportunities in this research area.

关键词： two-dimensional(2D)materials graphene photodetector lateral photovoltaic effect position-sensitive detector heterojunction

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