Electrogenerated chemiluminescence of donor-acceptor molecules with thermally activated delayed fluorescence.
Angew Chem Int Ed Engl
; 53(27): 6993-6, 2014 Jul 01.
Article
em En
| MEDLINE
| ID: mdl-24853608
ABSTRACT
The electrochemistry and electrogenerated chemiluminescence (ECL) of four kinds of electron donor-acceptor molecules exhibiting thermally activated delayed fluorescence (TADF) is presented. TADF molecules can harvest light energy from the lowest triplet state by spin up-conversion to the lowest singlet state because of small energy gap between these states. Intense green to red ECL is emitted from the TADF molecules by applying a square-wave voltage. Remarkably, it is shown that the efficiency of ECL from one of the TADF molecule could reach about 50%, which is comparable to its photoluminescence quantum yield.
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01-internacional
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MEDLINE
Idioma:
En
Ano de publicação:
2014
Tipo de documento:
Article