Jump to main content
Jump to site search


Enhanced moisture stability of metal halide perovskite solar cells based on sulfur-oleylamine surface modification

Abstract

As one of the most promising light-harvesting materials, perovskite has drawn tremendous attention for its unique advantages such as high efficiency, low cost and facile fabrication compared with other photovoltaic materials. Nevertheless, the poor tolerance of perovskites to moisture greatly hampers the operation of devices and hinders its industrialization. Here, we demonstrate a facile dipping treatment by using sulfur-oleylamine for the surface atomic modulation of perovskite film. The oleylammonium polysulfides (OPs) would be self-assembled on the post-etching perovskite film as ultrathin outlayer, which could passivate the surface chemical activity of perovskite layers. Moreover, the hydrophobic OPs significantly enhance the moisture stability of devices. As a result, the obtained device without encapsulation retains more than 70% of its initial power conversion efficiency (PCE) after 14 days’ exposure in a relative humidity condition of 40 ± 10%.

Back to tab navigation

Supplementary files

Publication details

The article was received on 04 Jul 2018, accepted on 27 Jul 2018 and first published on 30 Jul 2018


Article type: Communication
DOI: 10.1039/C8NH00163D
Citation: Nanoscale Horiz., 2018, Accepted Manuscript
  •   Request permissions

    Enhanced moisture stability of metal halide perovskite solar cells based on sulfur-oleylamine surface modification

    Y. Hou, Z. R. Zhou, T. Wen, H. Qiao, Z. Q. Lin, B. Ge and H. Yang, Nanoscale Horiz., 2018, Accepted Manuscript , DOI: 10.1039/C8NH00163D

Search articles by author

Spotlight

Advertisements