Journal
JOURNAL OF MATERIALS CHEMISTRY A
Volume 4, Issue 42, Pages 16731-16736Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6ta08021a
Keywords
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Funding
- National Natural Science Foundation of China [91433203, 61474049]
- Ministry of Science and Technology of China [2015AA034601]
- Science and Technology Department of Hubei Province [2013BAA090]
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By mixing perovskite MAPbI(3) (MA = CH3NH3+) with LiCl, an effective one-step drop-coating approach was developed to improve the performance of hole-conductor-free printable perovskite solar cells. The LiCl-mixed perovskite exhibited superior electronic properties because of the improved conductivity of the perovskite layer enabling faster electron transport. LiCl-mixing also improved the crystallinity and morphology of the perovskite layer. As a consequence, perovskite solar cells prepared using the LiCl-mixed perovskite as the light harvester produced higher performances compared with the unmixed perovskite, improving the power conversion efficiency from 10.0% to 14.5%.
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