4.7 Article

Interface engineering via an insulating polymer for highly efficient and environmentally stable perovskite solar cells

Journal

CHEMICAL COMMUNICATIONS
Volume 52, Issue 76, Pages 11355-11358

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c6cc06290c

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Funding

  1. National Basic Research Program of China [2012CB932900]
  2. National Natural Science Foundation of China [21321062]
  3. China Scholarship Council

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A tunnelling contact of polystyrene nanofilm was introduced for the first time at the interface of perovskite/hole transfer layer, leading to a significantly reduced charge recombination. Moreover, such a polymeric contact worked as a hydrophobic encapsulation layer for effectively protecting the perovskite against humidity. The resultant PSCs displayed a peak efficiency of 17.80% (vs. 15.90% of the control cell) and an enhanced stability.

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