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Front Cover: Near‐Infrared‐to‐Visible Photon Upconversion by Introducing an S−T Absorption Sensitizer into a Metal‐Organic Framework (ChemNanoMat 6/2020)
Author(s) -
Joarder Biplab,
Mallick Arijit,
Sasaki Yoichi,
Kinoshita Mika,
Haruki Rena,
Kawashima Yusuke,
Yanai Nobuhiro,
Kimizuka Nobuo
Publication year - 2020
Publication title -
chemnanomat
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 0.947
H-Index - 32
ISSN - 2199-692X
DOI - 10.1002/cnma.202000160
Subject(s) - photon upconversion , photochemistry , absorption (acoustics) , visible spectrum , infrared , singlet oxygen , optoelectronics , triplet state , singlet state , energy transfer , common emitter , photon , materials science , chemistry , near infrared spectroscopy , metal organic framework , molecular physics , molecule , optics , atomic physics , doping , physics , oxygen , excited state , organic chemistry , adsorption , composite material
Near‐infrared (NIR)‐to‐visible photon upconversion based on triplet‐triplet annihilation (TTA‐UC) in the solid‐state remains a great challenge due to the sensitizer aggregation that impedes the efficient triplet energy transfer from the sensitizer to the emitter. Herein, a molecular sensitizer exhibiting direct singlet‐to‐triplet (S–T) absorption was successfully introduced into a new emitter‐based metal‐organic framework (MOF), resulting in an efficient triplet sensitization and a NIR‐to‐visible TTA‐UC in the solid‐state. More information can be found in the Full Paper by Nobuhiro Yanai, Nobuo Kimizuka et al.