Near infrared-to-blue photon upconversion by exploiting direct S-T absorption of a molecular sensitizer

Yoichi Sasaki, Shogo Amemori, Hironori Kouno, Nobuhiro Yanai, Nobuo Kimizuka

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

Triplet-triplet annihilation-based photon upconversion (TTA-UC) from NIR to blue light remains a great challenge. Here, we employ a direct singlet-to-triplet (S-T) excitation to circumvent an energy loss associated with the intersystem crossing (ISC) of triplet sensitizers. The TTA-UC based on the S-T absorption (STUC) allowed an efficient NIR (λ = 724 nm)-to-blue (λ = 462 nm) upconversion with a large anti-Stokes shift of 0.97 eV.

Original languageEnglish
Pages (from-to)5063-5067
Number of pages5
JournalJournal of Materials Chemistry C
Volume5
Issue number21
DOIs
Publication statusPublished - 2017

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Chemistry

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