“…Another combination can be used to directly obtain the temperature-dependent reverse intersystem crossing rate constant from S 1 to T 1 , [ 14 , 26 ] …”
Thermally activated delayed fluorescence (TADF) of 12C70 and 13C70 was observed up to 140 °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 12C70 and 13C70, 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.
“…Another combination can be used to directly obtain the temperature-dependent reverse intersystem crossing rate constant from S 1 to T 1 , [ 14 , 26 ] …”
Thermally activated delayed fluorescence (TADF) of 12C70 and 13C70 was observed up to 140 °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 12C70 and 13C70, 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.
“…41 Alternatively, such an observation may also suggest a thermally activated process, which involves another excited state that is of higher energy than the original emissive state. 34,42 To gain deeper insights into the excited state nature of these gold(III) complexes, the solid-state luminescence of selected complexes at different temperatures has been investigated, so that any solvent-related effects which could contribute to the changes in the emission can be excluded. The emission proles of 1 in 5 wt% doped mCP thin lm at 77 K, 200 K and 320 K are shown in Fig.…”
We report the design of a new class of fused heterocyclic alkynyl ligand-containing gold(iii) complexes, which shows tunable emission colors spanning yellow to red region and exhibits thermally activated delayed fluorescence (TADF) properties.
Organic material compositions, able to demonstrate bright delayed fluorescence either by electrical excitation, or by optical excitation, are being applied in various fields of research, ranging from sunlight-powered photonic devices...
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.