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An Ultrahigh‐Performance Photodetector based on a Perovskite–Transition‐Metal‐Dichalcogenide Hybrid Structure
Author(s) -
Kang DongHo,
Pae Seong Ryul,
Shim Jaewoo,
Yoo Gwangwe,
Jeon Jaeho,
Leem Jung Woo,
Yu Jae Su,
Lee Sungjoo,
Shin Byungha,
Park JinHong
Publication year - 2016
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201600992
Subject(s) - materials science , photodetector , triethoxysilane , perovskite (structure) , optoelectronics , doping , chemical engineering , engineering , composite material
An ultrahigh performance MoS 2 photodetector with high photoresponsivity (1.94 × 10 6 A W –1 ) and detectivity (1.29 × 10 12 Jones) under 520 nm and 4.63 pW laser exposure is demonstrated. This photodetector is based on a methyl‐ammonium lead halide perovskite/MoS 2 hybrid structure with (3‐aminopropyl)triethoxysilane doping. The performance degradation caused by moisture is also minimized down to 20% by adopting a new encapsulation bilayer of octadecyltrichlorosilane/polymethyl methacrylate.