Phonon-assisted up-conversion photoluminescence of quantum dots

Zikang Ye; Xing Lin; Na Wang; Jianhai Zhou; Meiyi Zhu; Haiyan Qin; Xiaogang Peng

doi:10.1038/s41467-021-24560-4

Nature Communications (Jul 2021)

Phonon-assisted up-conversion photoluminescence of quantum dots

Zikang Ye,
Xing Lin,
Na Wang,
Jianhai Zhou,
Meiyi Zhu,
Haiyan Qin,
Xiaogang Peng

Affiliations

Zikang Ye: Key Laboratory of Excited-State Materials of Zhejiang Province, Department of Chemistry, Zhejiang University
Xing Lin: Key Laboratory of Excited-State Materials of Zhejiang Province, Department of Chemistry, Zhejiang University
Na Wang: Key Laboratory of Excited-State Materials of Zhejiang Province, Department of Chemistry, Zhejiang University
Jianhai Zhou: Najing Technology Corporation LTD
Meiyi Zhu: Key Laboratory of Excited-State Materials of Zhejiang Province, Department of Chemistry, Zhejiang University
Haiyan Qin: Key Laboratory of Excited-State Materials of Zhejiang Province, Department of Chemistry, Zhejiang University
Xiaogang Peng: Key Laboratory of Excited-State Materials of Zhejiang Province, Department of Chemistry, Zhejiang University

DOI: https://doi.org/10.1038/s41467-021-24560-4
Journal volume & issue: Vol. 12, no. 1
pp. 1 – 9

Abstract

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Up-conversion photoluminescence in colloidal quantum dots is generally believed to be mediated by thermal activation from defect states. Here, the authors reveal that highly-efficient up-conversion photoluminescence instead is related to electron-phonon coupling.

Published in Nature Communications

ISSN: 2041-1723 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science
Website: https://www.nature.com/ncomms/

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