Degradation kinetics in different polymer-fullerene blends investigated by electron spin resonance
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00177016%3A_____%2F18%3AN0000064" target="_blank" >RIV/00177016:_____/18:N0000064 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1557/jmr.2018.210" target="_blank" >http://dx.doi.org/10.1557/jmr.2018.210</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1557/jmr.2018.210" target="_blank" >10.1557/jmr.2018.210</a>
Alternative languages
Result language
angličtina
Original language name
Degradation kinetics in different polymer-fullerene blends investigated by electron spin resonance
Original language description
We investigate the photostability of a set of organic semiconductor blends comprising a conjugated polymer as the donor and a fullerene as the acceptor using electron spin resonance (ESR). In the absence of oxygen, all blends show excellent stability. Even after several hundred hours of exposure to solar or UV radiation, the ESR spectra and the recombination of photoinduced charges recorded at low temperature are found to be unchanged. By contrast, the presence of oxygen leads to a fast light-induced degradation rendering the ability of the donor/acceptor system to form photoinduced charge carriers. Our findings suggest that conjugated polymer–fullerene blends exhibit very good photostability and that oxygen needs to be excluded in optoelectronic applications. Our findings also suggest that at low temperature, a universal recombination process of long-lived photoinduced charges is active, which does not depend on the electronic structure or the morphology of the investigated materials.
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
—
Continuities
V - Vyzkumna aktivita podporovana z jinych verejnych zdroju
Others
Publication year
2018
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 Research
ISSN
0884-2914
e-ISSN
2044-5326
Volume of the periodical
33
Issue of the periodical within the volume
13
Country of publishing house
US - UNITED STATES
Number of pages
8
Pages from-to
1853-1859
UT code for WoS article
000438739300003
EID of the result in the Scopus database
2-s2.0-85049990194