Aqueous-Containing Precursor Solutions for Efficient Perovskite Solar Cells
Abstract
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.
- Authors:
-
- 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
- Publication Date:
- Research Org.:
- Michigan State Univ., East Lansing, MI (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1408253
- Alternate Identifier(s):
- OSTI ID: 1408254; OSTI ID: 1498970
- Grant/Contract Number:
- SC0010472
- Resource Type:
- Published Article
- Journal Name:
- Advanced Science
- Additional Journal Information:
- Journal Name: Advanced Science Journal Volume: 5 Journal Issue: 1; Journal ID: ISSN 2198-3844
- Publisher:
- Wiley
- Country of Publication:
- Germany
- Language:
- English
- Subject:
- 14 SOLAR ENERGY; 25 ENERGY STORAGE; air processing, aqueous-containing precursors, humidity, perovskites, solar cells
Citation Formats
Liu, Dianyi, Traverse, Christopher J., Chen, Pei, Elinski, Mark, Yang, Chenchen, Wang, Lili, Young, Margaret, and Lunt, Richard R. Aqueous-Containing Precursor Solutions for Efficient Perovskite Solar Cells. Germany: N. p., 2017.
Web. https://doi.org/10.1002/advs.201700484.
Liu, Dianyi, Traverse, Christopher J., Chen, Pei, Elinski, Mark, Yang, Chenchen, Wang, Lili, Young, Margaret, & Lunt, Richard R. Aqueous-Containing Precursor Solutions for Efficient Perovskite Solar Cells. Germany. https://doi.org/10.1002/advs.201700484
Liu, Dianyi, Traverse, Christopher J., Chen, Pei, Elinski, Mark, Yang, Chenchen, Wang, Lili, Young, Margaret, and Lunt, Richard R. Fri .
"Aqueous-Containing Precursor Solutions for Efficient Perovskite Solar Cells". Germany. https://doi.org/10.1002/advs.201700484.
@article{osti_1408253,
title = {Aqueous-Containing Precursor Solutions for Efficient Perovskite Solar Cells},
author = {Liu, Dianyi and Traverse, Christopher J. and Chen, Pei and Elinski, Mark and Yang, Chenchen and Wang, Lili and Young, Margaret and Lunt, Richard R.},
abstractNote = {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.},
doi = {10.1002/advs.201700484},
journal = {Advanced Science},
number = 1,
volume = 5,
place = {Germany},
year = {2017},
month = {11}
}
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Figures / Tables:
Figure 1: Photograph of perovskite (CH3NH3PbI3−xClx) precursor solutions with various H2O concentrations. a) Freshly prepared precursor solutions after filtering and b) the same precursor solution after storage overnight. Note that only the 25% H2O solution appears cloudy after storage.
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