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Improving efficiency and stability of colorful perovskite solar cells with two-dimensional photonic crystals.

Authors
  • Liu, Zhou1
  • Wu, Longlong1
  • Wang, Xiao1
  • Xu, Qiaofei1
  • Hu, Youdi1
  • Meng, Ke1
  • Chen, Gang2
  • 1 School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, China. [email protected] [email protected] , (China)
  • 2 School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, China. [email protected] [email protected] and Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai, 201204, China. , (China)
Type
Published Article
Journal
Nanoscale
Publisher
The Royal Society of Chemistry
Publication Date
Apr 02, 2020
Identifiers
DOI: 10.1039/d0nr00459f
PMID: 32239039
Source
Medline
Language
English
License
Unknown

Abstract

Colorful solar cells have been much sought after because they can generate electricity and concurrently satisfy ornamentation purposes. Owing to their outstanding power conversion efficiency and flexibility in processing, perovskite solar cells (PSCs) have the great potential to become both efficient and aesthetically appealing. Here, we specially devise and fabricate two novel electron transport layers (ETLs) for PSCs with two-dimensional (2D) photonic crystal structures, namely the 2D inverse opal (IO) structured SnO2 (IOS) and SnO2-TiO2 composite (IOST), using the template-assisted spin-coating method. The synergistic structure and material modifications to the ETLs lead to a number of unique features, including the remarkable electron transfer ability, vivid colors and good protection to the infiltrated perovskite films. Furthermore, the IOS and IOST ETLs are effectively incorporated into the CH3NH3PbI3-based PSC devices that deliver the best efficiency of 16.8% with structural colors.

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