UV created weak and dangling bonds in aryl-substituted polysilylenes

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F06%3A63504653" target="_blank" >RIV/70883521:28110/06:63504653 - isvavai.cz</a>
Alternative codes found
RIV/61389013:_____/06:00095983
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
UV created weak and dangling bonds in aryl-substituted polysilylenes
Original language description
The susceptibility of aryl-substituted polysilylanes to photodegradation by UV radiation is examined on the prototypical organosilicon polymers, poly[methyl(phenyl)silylene] (PMPSi) and poly[(biphenyl-4-yl)methylsilylene] (PBMSi). The main purpose of this work is to study photoluminescence (PL) after UV major degradation for two different degradation wavelengths 266 and 355 nm, predominantly in long wave range 400-600 nm, studying the disorder, dangling bonds (DB) and weak bonds (WB) created by the degradation process. We claim that the PL of the 500-600 nm band is related to the existence of WB on Si chain. Increase of the normalized PL 520-540 nm band after UV degradation can be then evaluated as the increase of the density of states (DOS) of WB. Theefficiency of the WB creation in PMPSi is greater for 266 nm irradiation, supporting the notion of the suppressed exciton transport compared to the less energetical photon of 355 nm, where the WB creation is lowered due to the exciton mi
Czech name
Slabé vazby a přerušené vazby vytvořené UV v polysilanech
Czech description
studie fotoluminiscence a UV degradace polysilanů, zejména s ohledem na slabé a přerušené vazby

Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BM - Solid-state physics and magnetism
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
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2006
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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