New electroluminescent carbazole-containing conjugated polymer: synthesis, photophysics, and electroluminescence

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F14%3A00434345" target="_blank" >RIV/61389013:_____/14:00434345 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/j.polymer.2014.10.015" target="_blank" >http://dx.doi.org/10.1016/j.polymer.2014.10.015</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.polymer.2014.10.015" target="_blank" >10.1016/j.polymer.2014.10.015</a>

Result language
angličtina
Original language name
New electroluminescent carbazole-containing conjugated polymer: synthesis, photophysics, and electroluminescence
Original language description
A new electroluminescent polymer, poly{9-(2-ethylhexyl)carbazole-2,7-diethynylene-alt-tris[2,5-bis(2-ethylhexyloxy)-1,4-phenylenevinylene]} (PCzE-PPV), is synthesized, and its photophysical and electrochemical properties and electroluminescence (EL) arestudied. In solution, an intense photoluminescence (PL) emission with a maximum at about 520 nm is observed. PL decay dynamics in solution are best described by a monoexponential function with a lifetime of 0.76 ns. Thin films exhibit an intense PL emission with a slightly red-shifted maximum at 532 nm compared to that in the solution spectra. The polymer oxidizes and reduces quasi-reversibly. The ionization potential (HOMO level) of 5.3 eV and the electron affinity (LUMO level) of 2.80 eV are evaluatedfrom cyclovoltammetric measurements. The electrochemical bandgap value (2.45 eV) is in good agreement with the optical bandgap value. Using new polymer, light-emitting devices (LEDs) with a luminance higher than 3000 cd m2 and low onset
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CD - Macromolecular chemistry
OECD FORD branch
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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