journal article·2023-03-15

Ultrafast One-Step Deposition Route to Fabricate Single-Crystal CsPbX3 (X = Cl, Cl/Br, Br, and Br/I) Photodetectors

Li Zhang, Xinxin Li, Ye Tian, Bin Hao, Jiufang Han, Hong Chen, Bingsuo Zou, Chunhua Du

ACS Applied Materials & Interfaces· Volume 15· Issue 10
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Abstract

Inorganic perovskites have received much attention due to their stability and high performance in luminescence, photoelectric conversion, and photodetection. However, perovskite optoelectronic devices prepared by the solution technique are still suffering from time-consuming and complex operations. In this paper, a single-crystal perovskite-based photodetector (PD) is prepared by very fast one-step deposition of synthesizing microplatelets (MPs) on the electrode directly. The saturated precursor is carefully optimized by adding appropriate antisolvent chlorobenzene (CB) to fabricate the MPs with their PL wavelength ranging from 418 to 600 nm. Furthermore, the PDs with a low dark current on order of nanoangstroms, high responsivity and detectivity of up to 10.7 A W –1 and 10 12 Jones, respectively, and an ultrafast response rate featured by 278/287 μs (rise/decay time) are achieved. These all-inorganic perovskite PDs with a simple fabricating process and tunable detection wavelength meet the evolution tendency of PDs toward low cost and high performance, which is a high-profile strategy to realize high-performance perovskite PDs.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Perovskite Materials and Applications · Ga2O3 and related materials · Quantum Dots Synthesis And Properties

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China

Key Laboratory for Renewable Energy, Beijing Key Laboratory for New Energy Materials and Devices, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, P. R. China

Center of Materials and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, P. R. China

Beijing Key Laboratory of Nanophotonics & Ultrafine Optoelectronic Systems, Beijing Institute of Technology, Beijing 100081, P. R. China

Center of Material and Optoelectronics Engineering, University of Academy of Science, Beijing 100049, P. R. China

The Yangtze River Delta Physics Research Center, Liyang, Jiangsu 213000, P. R. China

Guangxi Key Lab of Processing for Nonferrous Metals and Featured Materials and School of Resources, Environments and Materials, Guangxi University, Nanning 530004, P. R. China

Funding

Youth Innovation Promotion Association of the Chinese Academy of Sciences · National Natural Science Foundation of China · Chinese Academy of Sciences

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