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Graphene Photodetectors: High–Performance Perovskite–Graphene Hybrid Photodetector (Adv. Mater. 1/2015)
Author(s) -
Lee Youngbin,
Kwon Jeong,
Hwang Euyheon,
Ra ChangHo,
Yoo Won Jong,
Ahn JongHyun,
Park Jong Hyeok,
Cho Jeong Ho
Publication year - 2015
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.201570007
Subject(s) - photodetector , graphene , materials science , perovskite (structure) , optoelectronics , quantum efficiency , absorption (acoustics) , nanotechnology , composite material , chemical engineering , engineering
On page 41, J. H. Cho and co‐workers demonstrate a high performance novel photodetector consisting of graphene and a CH 3 NH 3 PbI 3 perovskite layer, which exhibit a dramatic enhancement of photoresponsivity and effective quantum efficiency with a broad spectral bandwidth. The ultrahigh performance of the perovskite–graphene hybrid photodetector arises from the enhanced photon absorption of the hybrid film and the effective gain effect induced by trapped photoexcited electrons in the perovskite layer.