Upconverted emission-driven photothermal conversion with gold nanospheres based on triplet–triplet annihilation

Shota Jin; Kosuke Sugawa; Naoto Takeshima; Shuto Igari; Wataru Inoue; Jotaro Honda; Satoshi Yoshinari; Shiryu Watanabe; Daisuke Kanai; Kotomi Kanakubo; Joe Otsuki

doi:10.1039/D0CP02365E

Upconverted emission-driven photothermal conversion with gold nanospheres based on triplet–triplet annihilation†

Shota Jin,^a Kosuke Sugawa,

*^a Naoto Takeshima,^a Shuto Igari,^a Wataru Inoue,^a Jotaro Honda,^a Satoshi Yoshinari,^a Shiryu Watanabe,^a Daisuke Kanai,^a Kotomi Kanakubo^a and Joe Otsuki

^a

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^a Department of Materials and Applied Chemistry, College of Science Technology, Nihon University, Chiyoda, Tokyo 101-8308, Japan
E-mail: sugawa.kosuke@nihon-u.ac.jp

Abstract

Low-energy visible light was converted into heat energy through the excitation of the localized surface plasmon resonance of gold nanospheres excited by upconverted emission based on triplet–triplet annihilation of organic molecules. This system allows easy tuning of absorption/emission wavelengths, which is difficult with conventional photothermal conversion using rare-earth elements.

Physical Chemistry Chemical Physics

Upconverted emission-driven photothermal conversion with gold nanospheres based on triplet–triplet annihilation†

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Upconverted emission-driven photothermal conversion with gold nanospheres based on triplet–triplet annihilation

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