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Recent Advance in Solution‐Processed Organic Interlayers for High‐Performance Planar Perovskite Solar Cells
Author(s) -
Zhang Wenxiao,
Wang YingChiao,
Li Xiaodong,
Song Changjian,
Wan Li,
Usman Khurram,
Fang Junfeng
Publication year - 2018
Publication title -
advanced science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.388
H-Index - 100
ISSN - 2198-3844
DOI - 10.1002/advs.201800159
Subject(s) - planar , heterojunction , perovskite (structure) , materials science , photovoltaic system , optoelectronics , organic solar cell , nanotechnology , polymer solar cell , hybrid solar cell , organic molecules , polymer , energy conversion efficiency , molecule , chemical engineering , computer science , chemistry , composite material , electrical engineering , computer graphics (images) , engineering , organic chemistry
Planar heterojunction perovskite solar cells (PSCs) provide great potential for fabricating high‐efficiency, low‐cost, large‐area, and flexible photovoltaic devices. In planar PSCs, a perovskite absorber is sandwiched between hole and electron transport materials. The charge‐transporting interlayers play an important role in enhancing charge extraction, transport, and collection. Organic interlayers including small molecules and polymers offer great advantages for their tunable chemical/electronic structures and low‐temperature solution processibility. Here, recent progress of organic interlayers in planar heterojunction PSCs is discussed, and the effect of chemical structures on device performance is also illuminated. Finally, the main challenges in developing planar heterojunction PSCs based on organic interlayers are identified, and strategies for enhancing the device performance are also proposed.

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