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Electrochemical Doping of Halide Perovskites with Ion Intercalation
Abstract
Halide perovskites have recently been investigated for various solution-processed optoelectronic devices. The majority of studies have focused on using intrinsic halide perovskites, and the intentional incoporation of dopants has not been well explored. In this work, we discovered that small alkali ions, including lithium and sodium ions, could be electrochemically intercalated into a variety of halide and pseudohalide perovskites. The ion intercalation caused a lattice expansion of the perovskite crystals and resulted in an n-type doping of the perovskites. Such electrochemical doping improved the conductivity and changed the color of the perovskites, leading to an electrochromism with more than 40% reduction of transmittance in the 450-850 nm wavelength range. The doped perovskites exhibited improved electron injection efficiency into the pristine perovskite crystals, resulting in bright light-emitting diodes with a low turn-on voltage.
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Cites
Solvent engineering for high-performance inorganic–organic hybrid perovskite solar cells
Jeon, N. J., Noh, J. H., Kim, Y. C., Yang, W. S., Ryu, S., & Seok, S. I. (2014) · Nature Materials · doi:10.1038/nmat4014 · Cited by 6,723
Cited by
Wei, Y., Cheng, Z., & Lin, J. (2019) · Chemical Society Reviews · doi:10.1039/c8cs00740c · Cited by 1,206
Metal-Doped Lead Halide Perovskites: Synthesis, Properties, and Optoelectronic Applications
Zhou, Y., Chen, J., Bakr, O. M., & Sun, H.-T. (2018) · Chemistry of Materials · doi:10.1021/acs.chemmater.8b02989 · Cited by 650
Metadata
- Authors
- Jiang, Q., Chen, M., Li, J., Wang, M., Zeng, X., Besara, T., Lu, J., Xin, Y., Shan, X., Pan, B., Wang, C., Lin, S., Siegrist, T., Xiao, Q., & Yu, Z.
- Venue
- ACS Nano
- Publisher
- American Chemical Society (ACS)
- Published
- 2017-01-10
- Volume
- 11
- Issue
- 1
- Pages
- 1073-1079
- ISSN
- 1936-0851 (ISSN-L)
- 1936-086X
- OpenAlex
- W2571452667
- Cited by
- 160
- References
- 1
- FWCI
- 7.16
- Type
- journal article
- Language
- en
- Open access
- closed
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- Jiang, Q., Chen, M., Li, J., Wang, M., Zeng, X., Besara, T., Lu, J., Xin, Y., Shan, X., Pan, B., Wang, C., Lin, S., Siegrist, T., Xiao, Q., & Yu, Z. (2017). Electrochemical Doping of Halide Perovskites with Ion Intercalation. ACS Nano. https://doi.org/10.1021/acsnano.6b08004
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