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

Keisuke Okumura, Nobuhiro Yanai, Nobuo Kimizuka

    Research output: Contribution to journalArticlepeer-review

    15 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 languageEnglish
    Pages (from-to)1347-1350
    Number of pages4
    JournalChemistry Letters
    Volume48
    Issue number11
    DOIs
    Publication statusPublished - 2019

    All Science Journal Classification (ASJC) codes

    • Chemistry(all)

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