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Title: Aqueous-Containing Precursor Solutions for Efficient Perovskite Solar Cells

Journal Article · · Advanced Science
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  1. Department of Chemical Engineering and Materials Science, Michigan State University, East Lansing Michigan 48824 USA, Department of Physics and Astronomy, Michigan State University, East Lansing Michigan 48824 USA

Perovskite semiconductors have emerged as competitive candidates for photovoltaic applications due to their exceptional optoelectronic properties. However, the impact of moisture instability on perovskite films is still a key challenge for perovskite devices. While substantial effort is focused on preventing moisture interaction during the fabrication process, it is demonstrated that low moisture sensitivity, enhanced crystallization, and high performance can actually be achieved by exposure to high water content (up to 25 vol%) during fabrication with an aqueous-containing perovskite precursor. The perovskite solar cells fabricated by this aqueous method show good reproducibility of high efficiency with average power conversion efficiency (PCE) of 18.7% and champion PCE of 20.1% under solar simulation. This study shows that water–perovskite interactions do not necessarily negatively impact the perovskite film preparation process even at the highest efficiencies and that exposure to high contents of water can actually enable humidity tolerance during fabrication in air.

Research Organization:
Michigan State Univ., East Lansing, MI (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0010472
OSTI ID:
1408253
Alternate ID(s):
OSTI ID: 1408254; OSTI ID: 1498970
Journal Information:
Advanced Science, Journal Name: Advanced Science Vol. 5 Journal Issue: 1; ISSN 2198-3844
Publisher:
WileyCopyright Statement
Country of Publication:
Germany
Language:
English
Citation Metrics:
Cited by: 53 works
Citation information provided by
Web of Science

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Figures / Tables (6)