In situ investigation of halide incorporation into perovskite solar cells
- National Renewable Energy Lab. (NREL), Golden, CO (United States). Materials Science and Technology Directorate; Univ. of Utah, Salt Lake City, UT (United States). Materials Science and Engineering; Idaho National Lab. (INL), Idaho Falls, ID (United States). Fuel Design and Development Directorate
- Univ. of New Orleans, New Orleans, LA (United States). Advanced Materials Inst.; Colorado School of Mines, Golden, CO (United States). Dept. of Materials Science and Engineering
- Univ. of New Orleans, New Orleans, LA (United States). Advanced Materials Inst.
- Univ. of Tennessee, Knoxville, TN (United States). Dept. of Material Science and Engineering
- National Renewable Energy Lab. (NREL), Golden, CO (United States). Materials Science and Technology Directorate
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
We report on the material chemistry following crystallization in the presence of water vapor of chlorinated formamidinium lead-triiodide (NH2CH = NH2PbI3-xClx) perovskite films. We found in-situ exposure to water vapor reduces, or possibly eliminates, the retention of chlorine (Cl) inside NH2CH = NH2PbI3-xClx crystals. There is a strong tendency toward Cl volatility, which indicates the sensitivity of these materials for their integration into solar cells. The requisite for additional efforts focused on the mitigation of water vapor is reported. Based on the in situ results, hot casting (<100°C) in dry conditions demonstrates improved film coverage and Cl retention with efficiencies reaching 12.07%.
- Research Organization:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States); National Renewable Energy Lab. (NREL), Golden, CO (United States)
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE); USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division
- Grant/Contract Number:
- AC52-06NA25396; AC36-08-GO28308; 2013LANL8400
- OSTI ID:
- 1459819
- Report Number(s):
- LA-UR-16-27587; NREL/JA-5K00-68970; applab
- Journal Information:
- MRS Communications, Vol. 7, Issue 3; ISSN 2159-6859
- Publisher:
- Materials Research Society - Cambridge University PressCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 5 works
Citation information provided by
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Web of Science
Gas-solid reaction based over one-micrometer thick stable perovskite films for efficient solar cells and modules
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journal | September 2018 |
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