Improved Carrier Collection and Hot Electron Extraction across Perovskite, C60, and TiO2 Interfaces

Jiménez-López J, Puscher B, Guldi DM, Palomares E (2020)


Publication Type: Journal article

Publication year: 2020

Journal

DOI: 10.1021/jacs.9b09182

Abstract

The use of C60 as an interfacial layer between TiO2 and methylammonium lead iodide perovskite is probed to reduce the current-voltage hysteresis in perovskite solar cells (PSCs) and, in turn, to impact the interfacial carrier injection and recombination processes that limit solar cell efficiencies. Detailed kinetic analyses across different time scales, that is, from the femtoseconds to the seconds, reveal that the charge carrier lifetimes as well as the charge injection and charge recombination dynamics depend largely on the presence or absence of C60. In addition, we corroborate that C60 is applicable in hot carrier PSCs as it is capable of extracting hot carriers generated throughout the early time scales following photoexcitation.

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APA:

Jiménez-López, J., Puscher, B., Guldi, D.M., & Palomares, E. (2020). Improved Carrier Collection and Hot Electron Extraction across Perovskite, C60, and TiO2 Interfaces. Journal of the American Chemical Society. https://dx.doi.org/10.1021/jacs.9b09182

MLA:

Jiménez-López, Jesús, et al. "Improved Carrier Collection and Hot Electron Extraction across Perovskite, C60, and TiO2 Interfaces." Journal of the American Chemical Society (2020).

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