Direct exciton harvesting from a bound triplet pair

Guiying He; Kaia R. Parenti; Luis M. Campos; Matthew Y. Sfeir

doi:10.1117/12.2682119

5 October 2023 Direct exciton harvesting from a bound triplet pair

Guiying He, Kaia R. Parenti, Luis M. Campos, Matthew Y. Sfeir

Proceedings Volume PC12650, Physical Chemistry of Semiconductor Materials and Interfaces XXII; PC126500G (2023) https://doi.org/10.1117/12.2682119
Event: SPIE Nanoscience + Engineering, 2023, San Diego, California, United States

Abstract

SF is a multiexciton generation process, in which two triplet excitons form from a single absorbed photon. Since geometry limit of the covalent dimers, more than half of triplet state will be lost in a dephasing process. We demonstrate that individual triplet excitons can be extracted directly from a bound triplet pair (yield >50%) prior to dephasing. The harvesting process is not dependent on the net multiplicity of the triplet pair state, suggesting that an explicit dissociation step is not a requirement for using triplet pairs to do chemical or electrical work.

Conference Presentation

Citation Download Citation

Guiying He, Kaia R. Parenti, Luis M. Campos, and Matthew Y. Sfeir "Direct exciton harvesting from a bound triplet pair", Proc. SPIE PC12650, Physical Chemistry of Semiconductor Materials and Interfaces XXII, PC126500G (5 October 2023); https://doi.org/10.1117/12.2682119

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