4.8 Review

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

Journal

ADVANCED SCIENCE
Volume 5, Issue 7, Pages -

Publisher

WILEY
DOI: 10.1002/advs.201800159

Keywords

organic interlayers; perovskite solar cells; planar; polymers; small molecules

Funding

  1. National Natural Science Foundation of China [51773213, 61474125, 51603213]
  2. Key Research Program of Frontier Sciences [QYZDB-SSW-JSC047]
  3. K. C. Wong Education Foundation from CAS [rczx0800]
  4. Zhejiang Province Science and Technology Plan [2018C01047]
  5. Ningbo Natural Science Foundation of China [2017A610017]
  6. China Postdoctoral Science Foundation [2017M612046, 2017T100440]
  7. Qianjiang Talents Project of Zhejiang Province [QJD1602031]
  8. National Youth Top-Notch Talent Program of China

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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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