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Nanocrystalline Perovskite Hybrid Photodetectors with High Performance in Almost Every Figure of Merit
Author(s) -
Lin Yuanwei,
Lin Guoming,
Sun Baoyun,
Guo Xuefeng
Publication year - 2018
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.201705589
Subject(s) - photodetector , perovskite (structure) , materials science , figure of merit , responsivity , optoelectronics , trihalide , nanocrystalline material , photoelectric effect , photodiode , detector , schottky barrier , nanotechnology , optics , physics , inorganic chemistry , chemistry , diode , chemical engineering , halide , engineering
Conversion of photon into electron is a phenomenon of great importance in nature. Photodetectors based on this principle have immense potential applications at the frontiers of both scientific and industrial communities, thus affecting the daily life. Herein, a novel class of high‐quality organic–inorganic trihalide perovskite nanoscale hybrid photodetectors is presented based on carbon electrode−molecule junctions working at mild conditions. Almost every figure of merit with high performance, such as highest responsivity, highest photogain, high detectivity, high linear dynamic range, and a broad spectral response, could be achieved simultaneously in a single device under different biases. These significant achievements benefit from rational choices of novel energy loss‐prevented hybrid perovskite nanocrystals as active materials and optimized carbon electrode−molecule junctions as device architectures, which leads to a hybridization mechanism of photodiodes and photoconductors. These investigations demonstrate a useful photodetector platform that might lead to many future photoelectric conversion applications in the practical way.