Visible-to-UV photon upconversion sensitized by lead halide perovskite nanocrystals

Keisuke Okumura; Nobuhiro Yanai; Nobuo Kimizuka

doi:10.1246/cl.190473

Visible-to-UV photon upconversion sensitized by lead halide perovskite nanocrystals

Keisuke Okumura, Nobuhiro Yanai, Nobuo Kimizuka

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

38 Citations (Scopus)

Abstract

Visible-to-UV photon upconversion based on triplet-triplet annihilation (TTA-UC) sensitized by lead halide perovskite nanocrystals is demonstrated for the first time. The surface modification of nanocrystals with energy transmitter ligands plays a key role in the effective triplet sensitization, resulting in high TTA-UC efficiency over 4%. This work proves the promising potential of perovskite nanocrystals as a versatile, next-generation triplet sensitizer.

Original language	English
Pages (from-to)	1347-1350
Number of pages	4
Journal	Chemistry Letters
Volume	48
Issue number	11
DOIs	https://doi.org/10.1246/cl.190473
Publication status	Published - 2019

All Science Journal Classification (ASJC) codes

Chemistry(all)

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10.1246/cl.190473

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abstract = "Visible-to-UV photon upconversion based on triplet-triplet annihilation (TTA-UC) sensitized by lead halide perovskite nanocrystals is demonstrated for the first time. The surface modification of nanocrystals with energy transmitter ligands plays a key role in the effective triplet sensitization, resulting in high TTA-UC efficiency over 4%. This work proves the promising potential of perovskite nanocrystals as a versatile, next-generation triplet sensitizer.",

author = "Keisuke Okumura and Nobuhiro Yanai and Nobuo Kimizuka",

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AU - Okumura, Keisuke

AU - Yanai, Nobuhiro

AU - Kimizuka, Nobuo

N1 - Funding Information: This work was partly supported by JSPS KAKENHI grant number JP17H04799, JP16H06513, JP17J04798, and The Yoshida Foundation for the Promotion of Learning and Education. Publisher Copyright: © 2019 The Chemical Society of Japan | 1347

PY - 2019

Y1 - 2019

N2 - Visible-to-UV photon upconversion based on triplet-triplet annihilation (TTA-UC) sensitized by lead halide perovskite nanocrystals is demonstrated for the first time. The surface modification of nanocrystals with energy transmitter ligands plays a key role in the effective triplet sensitization, resulting in high TTA-UC efficiency over 4%. This work proves the promising potential of perovskite nanocrystals as a versatile, next-generation triplet sensitizer.

AB - Visible-to-UV photon upconversion based on triplet-triplet annihilation (TTA-UC) sensitized by lead halide perovskite nanocrystals is demonstrated for the first time. The surface modification of nanocrystals with energy transmitter ligands plays a key role in the effective triplet sensitization, resulting in high TTA-UC efficiency over 4%. This work proves the promising potential of perovskite nanocrystals as a versatile, next-generation triplet sensitizer.

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Visible-to-UV photon upconversion sensitized by lead halide perovskite nanocrystals

Abstract

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