Sensitizing Singlet Fission with Perovskite Nanocrystals

Haipeng Lu; Xihan Chen; John E. Anthony; Justin C. Johnson; Matthew C. Beard

doi:10.1021/jacs.8b13562

Sensitizing Singlet Fission with Perovskite Nanocrystals

Haipeng Lu
, Xihan Chen
, John E. Anthony
, Justin C. Johnson
, Matthew C. Beard

Research output: Contribution to journal › Article › peer-review

97 Scopus citations

Abstract

The marriage of colloidal semiconductor nanocrystals and functional organic molecules has brought unique opportunities in emerging photonic and optoelectronic applications. Traditional semiconductor nanocrystals have been widely demonstrated to initiate efficient triplet energy transfer at the nanocrystal-acene interface. Herein, we report that unlike conventional semiconductor nanocrystals, lead halide perovskite nanocrystals promote an efficient Dexter-like singlet energy transfer to surface-anchored pentacene molecules rather than triplet energy transfer. Subsequently, molecular pentacene triplets are efficiently generated via singlet fission on the nanocrystal surface. Our demonstrated strategy not only unveils the obscure energy dynamics between perovskite nanocrystal and acenes, but also brings important perspectives of utilizing singlet fission throughout the solar spectrum.

Original language	English
Pages (from-to)	4919-4927
Number of pages	9
Journal	Journal of the American Chemical Society
Volume	141
Issue number	12
DOIs	https://doi.org/10.1021/jacs.8b13562
State	Published - Mar 27 2019

Bibliographical note

Publisher Copyright:
© 2019 American Chemical Society.

Funding

We gratefully acknowledge support for nanocrystal synthesis, ligand exchange, and characterization of energy transfer from the Center for Hybrid Organic Inorganic Semiconductors for Energy (CHOISE) an Energy Frontier Research Center funded by the Office of Basic Energy Sciences, Office of Science within the U.S. Department of Energy through contract number DE-AC36-08G028308. Work on spectroscopy and mechanisms of singlet fission was supported by the Solar Photochemistry Program funded by the Office of Basic Energy Sciences, Office of Science, Division of Chemical Sciences, Geosciences, and Biosciences. Organic Synthesis was supported by NSF (DMREF-1627428). The views expressed in the article do not necessarily represent the views of the DOE or the U.S. Government. The U.S. Government retains and the publisher, by accepting the article for publication, acknowledges that the U.S. Government retains a nonexclusive, paidup, irrevocable, worldwide license to publish or reproduce the published form of this work, or allow others to do so, for U.S. Government purposes. We gratefully acknowledge support for nanocrystal synthesis, ligand exchange, and characterization of energy transfer from the Center for Hybrid Organic Inorganic Semiconductors for Energy (CHOISE) an Energy Frontier Research Center funded by the Office of Basic Energy Sciences, Office of Science within the U.S. Department of Energy through contract number DE-AC36-08G028308. Work on spectroscopy and mechanisms of singlet fission was supported by the Solar Photochemistry Program funded by the Office of Basic Energy Sciences, Office of Science, Division of Chemical Sciences, Geosciences, and Biosciences. Organic Synthesis was supported by NSF (DMREF-1627428). The views expressed in the article do not necessarily represent the views of the DOE or the U.S. Government. The U.S. Government retains and the publisher, by accepting the article for publication, acknowledges that the U.S. Government retains a nonexclusive, paid-up, irrevocable, worldwide license to publish or reproduce the published form of this work, or allow others to do so, for U.S. Government purposes.

Funders	Funder number
Office of Basic Energy Sciences
U.S. Government
National Science Foundation (NSF)	DMREF-1627428
Michigan State University-U.S. Department of Energy (MSU-DOE) Plant Research Laboratory	DE-AC36-08G028308
Office of Science Programs
Chemical Sciences, Geosciences, and Biosciences Division

ASJC Scopus subject areas

Catalysis
General Chemistry
Biochemistry
Colloid and Surface Chemistry

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10.1021/jacs.8b13562

Cite this

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AB - The marriage of colloidal semiconductor nanocrystals and functional organic molecules has brought unique opportunities in emerging photonic and optoelectronic applications. Traditional semiconductor nanocrystals have been widely demonstrated to initiate efficient triplet energy transfer at the nanocrystal-acene interface. Herein, we report that unlike conventional semiconductor nanocrystals, lead halide perovskite nanocrystals promote an efficient Dexter-like singlet energy transfer to surface-anchored pentacene molecules rather than triplet energy transfer. Subsequently, molecular pentacene triplets are efficiently generated via singlet fission on the nanocrystal surface. Our demonstrated strategy not only unveils the obscure energy dynamics between perovskite nanocrystal and acenes, but also brings important perspectives of utilizing singlet fission throughout the solar spectrum.

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Sensitizing Singlet Fission with Perovskite Nanocrystals

Abstract

Bibliographical note

Funding

ASJC Scopus subject areas

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