Open AccessVisible‐to‐UV Photon Upconversion in Nanostructured Chromophoric Ionic Liquids
Author(s) -
Hisamitsu Shota,
Miyano Junji,
Okumura Keisuke,
KaHo Hui Joseph,
Yanai Nobuhiro,
Kimizuka Nobuo
Publication year - 2020
Publication title -
chemistryopen
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.644
H-Index - 29
ISSN - 2191-1363
DOI - 10.1002/open.201900358
Subject(s) - chromophore , photon upconversion , exciton , photochemistry , ionic bonding , ultraviolet , excitation , diffusion , chemistry , ionic liquid , materials science , optoelectronics , ion , doping , physics , condensed matter physics , organic chemistry , quantum mechanics , thermodynamics , catalysis
Invited for this month's cover picture is the group of Professor Nobuhiro Yanai and Nobuo Kimizuka at Kyushu University. The cover picture shows visible‐to‐ultraviolet (vis‐to‐UV) triplet‐triplet annihilation‐based photon upconversion (TTA‐UC) via triplet exciton diffusion in a chromophoric ionic liquid (IL). Chromophore moieties spontaneously form continuous arrays in non‐polar nano‐domains of the IL. The close arrangement of the chromophores in the IL allowed effective diffusion of triplet excitons, resulting in the vis‐to‐UV TTA‐UC at a low excitation intensity. Read the full text of their Communication at 10.1002/open.201900304.