Highly efficient intrinsic phosphorescence from a sigma?conjugated poly(silylene) polymer
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23220%2F14%3A43924172" target="_blank" >RIV/49777513:23220/14:43924172 - isvavai.cz</a>
Result on the web
<a href="http://10.1021/jp506959m" target="_blank" >http://10.1021/jp506959m</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/jp506959m" target="_blank" >10.1021/jp506959m</a>
Alternative languages
Result language
angličtina
Original language name
Highly efficient intrinsic phosphorescence from a sigma?conjugated poly(silylene) polymer
Original language description
We have observed highly efficient intrinsic phosphorescence of a neat sigma-conjugated polymer, poly(biphenyl-4-ylmethylsilylene) (PBMSi). At low temperatures, PBMSi solid films featured ?15% phosphorescence quantum yield, which is unusually high for purely organic conjugated polymers and is comparable to that of organometallic polymers. Exciton dynamics in PBMSi was studied by ultrafast fluorescence and time-gated delayed emission measurements. It was shown that the phosphorescence of PBMSi originatesfrom the radiative decay of triplets on the pí-conjugated biphenyl group constituting the lowest triplet state, T1, which is populated under the excitation of the sigma-conjugated polymer backbone, i.e., with energy well below the lowest singlet excitedstate of the biphenyl group itself. The nature of the excited states in PBMSi was further investigated by performing quantum-mechanical calculations of the model compound. The calculations showed that the lowest singlet excited state has
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
JA - Electronics and optoelectronics
OECD FORD branch
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Result continuities
Project
<a href="/en/project/ED2.1.00%2F03.0094" target="_blank" >ED2.1.00/03.0094: Regional Innovation Centre for Electrical Engineering (RICE)</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
The Journal of Physical Chemistry C
ISSN
1932-7447
e-ISSN
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Volume of the periodical
118
Issue of the periodical within the volume
40
Country of publishing house
US - UNITED STATES
Number of pages
12
Pages from-to
22923-22934
UT code for WoS article
000343016800012
EID of the result in the Scopus database
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