Broadband and sensitive two-dimensional halide perovskite photodetector for full-spectrum underwater optical communication
作者机构：Institute of Optoelectronics&NanomaterialsMIIT Key Laboratory of Advanced Display Materials and DevicesSchool of Materials Science and EngineeringNanjing University of Science and TechnologyNanjing 210094China
出 版 物：《Nano Research》 (纳米研究（英文版）)
年 卷 期：2021年第14卷第4期
页 面：1210-1217页
核心收录：
学科分类：0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 082403[工学-水声工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0824[工学-船舶与海洋工程] 0702[理学-物理学]
基 金：the Natural Science Foundation of Jiangsu Province(Nos.BK20190443,BK20160815) Young Elite Scientists Sponsorship Program by Jiangsu CAST(No.JS19TJGC132574) 2019 Overseas Students Science and Technology Innovation Project Selection Funding o f Nanjing,Fundam ental Research Funds for the Central Universities(Nos.30919011298,30919011299,30919012107) the National Key R&D Program of China(No.2017YFA0305500) the National Natural Science Foundation of China(Nos.61725402,11604152,51672132) the Six top talent innovation teams of Jiangsu Province(No.TD-XCL-004)
主 题：two-dimensional(2D)halide perovskite photodetector water stability broadband photoresponse underwater optical communication
摘 要：Full-spectrum underwater optical communication(UOC)is of great significance for major strategic needs including resource development,scientific exploration,and homeland *** the core of the full-spectrum UOC system,photodetectors(PDs)are plagued by stringent requirements including a broadband response,intrinsic water resistance,and a high *** this work,two-dimensional(2D)halide perovskites(HPs)and corresponding PDs are constructed by stearamine(SA),representing the rarely explored long-chain aliphatic amine series,to own waterproofness,ultralow noise,and superior optoelectronic performance,which consequently enable a high suitability for *** dimensionality and composition modulations to extend the absorption onset down to 1.5 eV,a broadband response covering the entire transmission window of water(1.55 eV)for full-spectrum UOC can be ***,featuring a high responsivity of 3.27 A·W^(-1),a peak external quantum efficiency(EQE)of 630%,fast rise/decay times of 0.35 ms/0.54 ms,a superior detectivity up to 1.35×10^(12)Jones and the capability to distinguish various waveforms and light intensities,the PDs present sensitive and persistent photoresponse *** a result,proof-of-concept wireless transmission of ASCII codes in water is demonstrated.
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