Centripetal triazine chromophores: towards efficient two-photon absorbers and highly emissive polyimide films
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F23%3A39920351" target="_blank" >RIV/00216275:25310/23:39920351 - isvavai.cz</a>
Result on the web
<a href="https://pubs.rsc.org/en/content/articlelanding/2023/TC/D3TC00877K" target="_blank" >https://pubs.rsc.org/en/content/articlelanding/2023/TC/D3TC00877K</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1039/d3tc00877k" target="_blank" >10.1039/d3tc00877k</a>
Alternative languages
Result language
angličtina
Original language name
Centripetal triazine chromophores: towards efficient two-photon absorbers and highly emissive polyimide films
Original language description
Four centripetal (D-pi-)(3)-A chromophores based on s-triazine central acceptors and three amino donor-terminated branches were prepared. These chromophores were proved to be thermally stable up to 300 degrees C with a tuneable HOMO-LUMO gap (3.02-2.51 eV) and longest-wavelength absorption/emission maxima within the range of 390-427/485-551 nm. Relatively large Stokes shift up to 8000 cm(-1), quantum yields up to 78% and fluorescence lifetimes ranging between 2 and 4 ns were observed based on the chromophore structure and the used environment. In general, varying the pi-linker is proved to be a very useful strategy to tune the fundamental properties of these chromophores. Two-photon absorption measurements showed good to excellent cross-sections reaching 1000 GM. High-quality and well-transparent polyimide films doped with chromophores (0.1%) were further prepared, and showed bright emission in blue and yellow/green regions.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10401 - Organic chemistry
Result continuities
Project
<a href="/en/project/EF17_048%2F0007376" target="_blank" >EF17_048/0007376: High sensitive sensors and low density materials based on polymeric nanocomposites - NANOMAT</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Materials Chemistry C
ISSN
2050-7526
e-ISSN
2050-7534
Volume of the periodical
11
Issue of the periodical within the volume
22
Country of publishing house
GB - UNITED KINGDOM
Number of pages
10
Pages from-to
"7252–7261"
UT code for WoS article
000993802600001
EID of the result in the Scopus database
2-s2.0-85161489032