Publication Type Journal Article
Title Calixarenes as High Temperature Matrices for Thermally Activated Delayed Fluorescence: C-70 in Dihomooxacalix[4]arene
Authors Tiago Palmeira Alexandre S. Miranda Paula M. Marcos Mario N. Berberan-Santos
Groups BioMol
Journal MOLECULES
Year 2018
Month March
Volume 23
Number 3
Pages
Abstract Thermally activated delayed fluorescence (TADF) of C-12(70) and C-13(70) was observed up to 140 degrees C in a p-tert-butyldihomooxacalix[4]arene solid matrix, a temperature range significantly higher than that of previous TADF quantitative studies. An effective singlet-triplet energy gap of 29 kJ/mol and triplet formation quantum yields of 0.97 and 0.99 were measured for C-12(70) and C-13(70), respectively. The photophysical properties of the two fullerenes in this new matrix are comparable to those obtained in polystyrene at a lower temperature range. Calixarenes are proposed to be suitable matrices for high temperature TADF studies and applications.
DOI http://dx.doi.org/10.3390/molecules23030558
ISBN
Publisher
Book Title
ISSN 1420-3049
EISSN
Conference Name
Bibtex ID ISI:000428514100049
Observations
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