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1. 发明公开

EP4280289A1 DIELECTRIC LAYER RESPONSE-BASED FIELD EFFECT TRANSISTOR PHOTODETECTOR 审中-实审
公开(公告)号：EP4280289A1
公开(公告)日：2023-11-22
申请号：EP21919053.5
申请日：2021-12-03
申请人： Huazhong University of Science and Technology
发明人： MEI, Anyi , HAN, Hongwei
IPC分类号： H01L31/101 , H01L27/14
摘要： The present invention relates to the field of photodetectors. Specifically, disclosed is a dielectric layer response-based field effect transistor photodetector, comprising a gate, a photoelectric response composite dielectric layer, a carrier transport layer, a source, and a drain. The composite dielectric layer is formed by compounding a photoelectric response dielectric and a charge blocking insulating dielectric; the carrier transport layer is used for transporting electrons or holes, the photoelectric response dielectric is used for absorbing light under illumination to generate electrons, holes or excitons, and the charge blocking insulating dielectric is used for limiting passage of the electrons, holes or excitons. The generation of photogenerated electrons, holes or excitons in the composite dielectric layer and the movement of the photogenerated electrons, holes or excitons limited within the photoelectric response dielectric cause the equivalent permittivity of the composite dielectric layer to change, causing changes in carrier concentration and conductivity of the carrier transport layer and achieving photoelectric detection according to a change in current between the source and the drain before and after illumination. The present invention significantly improves the flexibility of design of photoelectric detection devices, and helps to further implement a high-performance and low-cost photodetector.

2. 发明公开

EP3098871A1 PEROVSKITE PHOTOELECTRIC FUNCTIONAL MATERIAL MODIFIED WITH AMPHIPATHIC MOLECULE AND USE THEREOF 有权转让
标题翻译：具有两亲分子及其用途光电管钙钛矿功能材料
公开(公告)号：EP3098871A1
公开(公告)日：2016-11-30
申请号：EP14880101.2
申请日：2014-03-19
申请人： Huazhong University of Science and Technology
发明人： HAN, Hongwei , MEI, Anyi
IPC分类号： H01L51/46 , H01G9/20
CPC分类号： C09K9/02 , C01G3/006 , C01G17/006 , C01G19/006 , C01G21/006 , C01P2002/34 , C01P2006/40 , C09K2211/10 , H01L51/422 , H01L51/4226 , H01L51/56 , H01L2031/0344 , H01L2251/303 , Y02E10/549
摘要： An M z A y BX z+y+2 perovskite-based photoelectric functional material modified with an organic amphipathic molecule and a preparation method and the use thereof. The functional material takes an ABX 3 perovskite material as a matrix and takes an organic amphipathic molecule M as a modification component, and the general chemical formula of the functional material is shown as M z A y BX z+y+2 . The matrix material and modification material used are low in cost and rich in raw materials; in addition, the preparation method can adopt a full-solution method, the preparation process is simple, without expensive equipment and instruments, at the same time the crystallization property of the obtained perovskite material is significantly improved, and the photoelectric conversion efficiency and stability of a solar cell prepared therefrom are greatly improved.

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