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

21 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 - Jan 1 2017

Fingerprint

Photons
Infrared radiation
Energy dissipation

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Chemistry

Cite this

Near infrared-to-blue photon upconversion by exploiting direct S-T absorption of a molecular sensitizer. / Sasaki, Yoichi; Amemori, Shogo; Kouno, Hironori; Yanai, Nobuhiro; Kimizuka, Nobuo.

In: Journal of Materials Chemistry C, Vol. 5, No. 21, 01.01.2017, p. 5063-5067.

Research output: Contribution to journalArticle

@article{8044eb360b2c42b2bed73d67b59a162e,
title = "Near infrared-to-blue photon upconversion by exploiting direct S-T absorption of a molecular sensitizer",
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.",
author = "Yoichi Sasaki and Shogo Amemori and Hironori Kouno and Nobuhiro Yanai and Nobuo Kimizuka",
year = "2017",
month = "1",
day = "1",
doi = "10.1039/c7tc00827a",
language = "English",
volume = "5",
pages = "5063--5067",
journal = "Journal of Materials Chemistry C",
issn = "2050-7526",
publisher = "Royal Society of Chemistry",
number = "21",

}

TY - JOUR

T1 - Near infrared-to-blue photon upconversion by exploiting direct S-T absorption of a molecular sensitizer

AU - Sasaki, Yoichi

AU - Amemori, Shogo

AU - Kouno, Hironori

AU - Yanai, Nobuhiro

AU - Kimizuka, Nobuo

PY - 2017/1/1

Y1 - 2017/1/1

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=85021712129&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85021712129&partnerID=8YFLogxK

U2 - 10.1039/c7tc00827a

DO - 10.1039/c7tc00827a

M3 - Article

VL - 5

SP - 5063

EP - 5067

JO - Journal of Materials Chemistry C

JF - Journal of Materials Chemistry C

SN - 2050-7526

IS - 21

ER -