Efficient and stable perovskite solar cells prepared in ambient air irrespective of the humidity

Qidong Tai, Peng You, Hongqian Sang, Zhike Liu, Chenglong Hu, Helen L. W. Chan and Feng Yan ()
Additional contact information
Qidong Tai: The Hong Kong Polytechnic University
Peng You: The Hong Kong Polytechnic University
Hongqian Sang: Institute for Interdisciplinary Research and Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education, Jianghan University
Zhike Liu: The Hong Kong Polytechnic University
Chenglong Hu: Institute for Interdisciplinary Research and Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education, Jianghan University
Helen L. W. Chan: The Hong Kong Polytechnic University
Feng Yan: The Hong Kong Polytechnic University

Nature Communications, 2016, vol. 7, issue 1, 1-8

Abstract: Abstract Poor stability of organic–inorganic halide perovskite materials in humid condition has hindered the success of perovskite solar cells in real applications since controlled atmosphere is required for device fabrication and operation, and there is a lack of effective solutions to this problem until now. Here we report the use of lead (II) thiocyanate (Pb(SCN)2) precursor in preparing perovskite solar cells in ambient air. High-quality CH3NH3PbI3−x(SCN)x perovskite films can be readily prepared even when the relative humidity exceeds 70%. Under optimized processing conditions, we obtain devices with an average power conversion efficiency of 13.49% and the maximum efficiency over 15%. In comparison with typical CH3NH3PbI3-based devices, these solar cells without encapsulation show greatly improved stability in humid air, which is attributed to the incorporation of thiocyanate ions in the crystal lattice. The findings pave a way for realizing efficient and stable perovskite solar cells in ambient atmosphere.

Date: 2016
References: Add references at CitEc
Citations:

Downloads: (external link)
https://www.nature.com/articles/ncomms11105 Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:7:y:2016:i:1:d:10.1038_ncomms11105

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/ncomms11105

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().