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Integrated Perovskite/Organic Photovoltaics with Ultrahigh Photocurrent and Photoresponse Approaching 1000 nm
Author(s) -
Zhang Mingyu,
Li Tengfei,
Yu Jinde,
Lu Guanghao,
Zhou Huanping,
Zhan Xiaowei
Publication year - 2020
Publication title -
solar rrl
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.544
H-Index - 37
ISSN - 2367-198X
DOI - 10.1002/solr.202000140
Subject(s) - perovskite (structure) , photocurrent , materials science , optoelectronics , organic solar cell , photovoltaics , absorption (acoustics) , hybrid solar cell , heterojunction , polymer solar cell , band gap , electron acceptor , acceptor , photovoltaic system , energy conversion efficiency , polymer , photochemistry , chemistry , crystallography , ecology , composite material , biology , physics , condensed matter physics
To enhance the photoresponse of commonly used perovskite materials in the near‐infrared (NIR) region, a fused‐ring electron acceptor (F8IC) with strong NIR absorption and high electron mobility is used to blend with a narrow‐bandgap polymer donor (PTB7‐Th) to construct an organic bulk heterojunction (OBHJ), and this OBHJ is then integrated with the perovskite solar cells (PSCs). The integrated perovskite/OBHJ solar cells exhibit a strong photoresponse approaching 1000 nm and an ultrahigh short‐circuit current density of 28.2 mA cm −2 , which is much higher than that of traditional PSCs and organic solar cells.