BROWSE

Related Scientist

Researcher

양자나노과학 연구단
양자나노과학 연구단
more info

Donor-sigma-Acceptor Motifs: Thermally Activated Delayed Fluorescence Emitters with Dual Upconversion

Cited 5 time in webofscience Cited 0 time in scopus
105 Viewed 34 Downloaded
Title
Donor-sigma-Acceptor Motifs: Thermally Activated Delayed Fluorescence Emitters with Dual Upconversion
Author(s)
Yan Geng; Anthony D'Aleo; Ko Inada; Lin‐Song Cui; Jong Uk Kim; Hajime Nakanotani; Chihaya Adachi
Publication Date
2017-12
Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, v.56, no.52, pp.16536 - 16540
Publisher
WILEY-V C H VERLAG GMBH
Abstract
A family of organic emitters with a donor-sigma-acceptor (D-sigma-A) motif is presented. Owing to the weakly coupled D-sigma-A intramolecular charge-transfer state, a transition from the localized excited triplet state ((LE)-L-3) and charge-transfer triplet state ((CT)-C-3) to the charge-transfer singlet state ((CT)-C-1) occurred with a small activation energy and high photoluminescence quantum efficiency. Two thermally activated delayed fluorescence (TADF) components were identified, one of which has a very short lifetime of 200-400 ns and the other a longer TADF lifetime of the order of microseconds. In particular, the two D-sigma-A materials presented strong blue emission with TADF properties in toluene. These results will shed light on the molecular design of new TADF emitters with short delayed lifetimes (c) 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
URI
https://pr.ibs.re.kr/handle/8788114/4759
ISSN
1433-7851
Appears in Collections:
Center for Quantum Nanoscience(양자나노과학 연구단) > Journal Papers (저널 논문)
Files in This Item:
Geng_et_al-2017-Angewandte_Chemie_International_Edition.pdfDownload

qrcode

  • facebook

    twitter

  • Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
해당 아이템을 이메일로 공유하기 원하시면 인증을 거치시기 바랍니다.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse