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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

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • 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