The DOI matches its Crossref record; 39 of the 39 references it cites were found in a registry or an index.
Highly Stable and Efficient FASnI3‐Based Perovskite Solar Cells by Introducing Hydrogen Bonding
Abstract
Tin‐based perovskites with narrow bandgaps and high charge‐carrier mobilities are promising candidates for the preparation of efficient lead‐free perovskite solar cells (PSCs). However, the crystalline rate of tin‐based perovskites is much faster, leading to abundant trap states and much lower open‐circuit voltage (Voc). Here, hydrogen bonding is introduced to retard the crystalline rate of the FASnI 3 perovskite. By adding poly(vinyl alcohol) (PVA), the OH…I− hydrogen bonding interactions between PVA and FASnI 3 have the effects of introducing nucleation sites, slowing down the crystal growth, directing the crystal orientation, reducing the trap states, and suppressing the migration of the iodide ions. In the presence of the PVA additive, the FASnI 3–PVA PSCs attain higher power conversion efficiency of 8.9% under a reverse scan with significantly improved Voc from 0.55 to 0.63 V, which is one of the highest Voc values for FASnI 3‐based PSCs. More importantly, the FASnI 3–PVA PSCs exhibit striking long‐term stability, with no decay in efficiency after 400 h of operation at the maximum power point. This approach, which makes use of the OH…I− hydrogen bonding interactions between PVA and FASnI 3, is generally applicable for improving the efficiency and stability of the FASnI 3‐based PSCs.
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Cites
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Cited by
Surface-Controlled Oriented Growth of FASnI3 Crystals for Efficient Lead-free Perovskite Solar Cells
Meng, X., Wang, Y., Lin, J., Liu, X., He, X., Barbaud, J., Wu, T., Noda, T., Yang, X., & Han, L. (2020) · Joule · doi:10.1016/j.joule.2020.03.007 · Cited by 319
Self-citationTin-Based Defects and Passivation Strategies in Tin-Related Perovskite Solar Cells
Li, B., Chang, B., Pan, L., Li, Z., Fu, L., He, Z., & Yin, L. (2020) · ACS Energy Letters · doi:10.1021/acsenergylett.0c01796 · Cited by 258
Metadata
- Authors
- Meng, X., Lin, J., Liu, X., He, X., Wang, Y., Noda, T., Wu, T., Yang, X., & Han, L.
- Venue
- Advanced Materials
- Publisher
- Wiley
- Published
- 2019-09-08
- Volume
- 31
- Issue
- 42
- Pages
- e1903721-e1903721
- ISSN
- 0935-9648 (ISSN-L)
- 1521-4095
- OpenAlex
- W2972348998
- Cited by
- 386
- References
- 39
- FWCI
- 16.04
- Type
- journal article
- Language
- en
- Open access
- closed
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- Meng, X., Lin, J., Liu, X., He, X., Wang, Y., Noda, T., Wu, T., Yang, X., & Han, L. (2019). Highly Stable and Efficient FASnI3‐Based Perovskite Solar Cells by Introducing Hydrogen Bonding. Advanced Materials. https://doi.org/10.1002/adma.201903721
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