Recent Advance in Solution‐Processed Organic Interlayers for High‐Performance Planar Perovskite Solar Cells

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...

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Bibliographic Details
Published in:Advanced science 2018-07, Vol.5 (7), p.1800159-n/a
Main Authors: Zhang, Wenxiao, Wang, Ying‐Chiao, Li, Xiaodong, Song, Changjian, Wan, Li, Usman, Khurram, Fang, Junfeng
Format: Article
Language:English
Subjects:
Efficiency
Electrodes
Electrolytes
Fullerenes
Metal oxides
Molecular structure
Nanoparticles
organic interlayers
perovskite solar cells
planar
polymers
Review
Reviews
small molecules
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Summary: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. Solution‐processed organic interlayers in planar perovskite solar cells (PSCs) have attracted enormous interest for their variability, easy processability, and low‐cost properties. The effect of the molecular structure of organic interlayers, including small molecules or polymers, on device performance is discussed. Furthermore, designing principles are proposed to advance the further development of PSCs.
ISSN:2198-3844
2198-3844
DOI:10.1002/advs.201800159