Journal
JOURNAL OF MATERIALS CHEMISTRY A
Volume 3, Issue 22, Pages 11750-11755Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ta01200g
Keywords
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Funding
- National Nature Science Foundation of China [51202227]
- Science and Technology Development Foundation of China academy of Engineering Physics [2014A0302015, 2014B0302054]
- National High Technology Research and Development Program of China [2012AA050704]
- Sichuan International Cooperation Research Project [2014HH0068]
- Fundamental Research Funds for the Central Universities of China [2672012ZYGX2012J065]
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Organic-inorganic halide perovskites possess excellent chemical, optical, and electronic properties that make them attractive for next-generation solar cells. In this paper, we introduce all-low-temperature processed perovskite solar cells using metal sulfide as an electron transport layer. First, we evaluated the alignment of energy levels at the perovskite/metal sulfide layer interface. The properties of metal sulfide and the perovskite layer, as well as the corresponding device performance, were then investigated. Using a CdS layer as an electron transport layer, we have achieved a maximum power conversion efficiency of 11.2% under reverse scans. The successful use of the CdS layer in perovskite solar cells likely would create new pathways and opportunities for the advancement of device design.
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