Thickness threshold of structural ordering in thin MEH-PPV films

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F14%3A10281079" target="_blank" >RIV/00216208:11320/14:10281079 - isvavai.cz</a>

Alternative codes found

RIV/70883521:28610/14:43871794

Result on the web

<a href="http://dx.doi.org/10.1016/j.polymer.2014.05.054" target="_blank" >http://dx.doi.org/10.1016/j.polymer.2014.05.054</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.polymer.2014.05.054" target="_blank" >10.1016/j.polymer.2014.05.054</a>

Result language

angličtina

Original language name

Thickness threshold of structural ordering in thin MEH-PPV films

Original language description

The microstructure of thin poly-[2-methoxy-5-(2'-ethyl-hexyloxy)-p-phenylene vinylene] (MEH-PPV) films was investigated by photoluminescence measurements and X-Ray diffraction analysis over thickness from several tens up to several hundreds of nanometer.Obtained results were correlated with exciton diffusion length obtained by the photovoltage method. All measurements revealed that there is a threshold thickness for the microstructural order as well as for exciton diffusion length which are primary physical properties for function of any device made up from such films. Development of more ordered phase can be observed above the critical thickness of about 150 nm. Below the threshold, the polymer chains are preferentially in conformations promoting localized intrachain interactions. Above the threshold, two main features can be observed: (i) the conjugation length of polymer chain segments reaches its maximum and (ii) polymer stacking in more ordered and larger crystalline domains infl

Czech name

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Czech description

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Type

J_x - 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

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

Name of the periodical

Polymer

ISSN

0032-3861

e-ISSN

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Volume of the periodical

55

Issue of the periodical within the volume

16

Country of publishing house

GB - UNITED KINGDOM

Number of pages

7

Pages from-to

4050-4056

UT code for WoS article

000340812300087

EID of the result in the Scopus database

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