The DOI matches its Crossref record; 31 of the 31 references it cites were found in a registry or an index.
Air-Stable Molecular Semiconducting Iodosalts for Solar Cell Applications: Cs2SnI6 as a Hole Conductor
Abstract
We introduce a new class of molecular iodosalt compounds for application in next-generation solar cells. Unlike tin-based perovskite compounds CsSnI3 and CH3NH3SnI3, which have Sn in the 2+ oxidation state and must be handled in an inert atmosphere when fabricating solar cells, the Sn in the molecular iodosalt compounds is in the 4+ oxidation state, making them stable in air and moisture. As an example, we demonstrate that, using Cs2SnI6 as a hole transporter, we can successfully fabricate in air a solid-state dye-sensitized solar cell (DSSC) with a mesoporous TiO2 film. Doping Cs2SnI6 with additives helps to reduce the internal device resistance, improving cell efficiency. In this way, a Z907 DSSC delivers 4.7% of energy conversion efficiency. By using a more efficient mixture of porphyrin dyes, an efficiency near 8% with photon confinement has been achieved. This represents a significant step toward the realization of low-cost, stable, lead-free, and environmentally benign next-generation solid-state solar cells.
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Self-citation
Metadata
- Authors
- Lee, B., Stoumpos, C. C., Zhou, N., Hao, F., Malliakas, C., Yeh, C.-Y., Marks, T. J., Kanatzidis, M. G., & Chang, R. P. H.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2014-10-20
- Volume
- 136
- Issue
- 43
- Pages
- 15379-15385
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W2321973456
- Cited by
- 721
- References
- 31
- FWCI
- 11.02
- Type
- journal article
- Language
- en
- Open access
- closed
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