Exciton diffusion length in some thermocleavable polythiophenes by the surface photovoltage method

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F12%3A10124327" target="_blank" >RIV/00216208:11320/12:10124327 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.synthmet.2011.10.008" target="_blank" >http://dx.doi.org/10.1016/j.synthmet.2011.10.008</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.synthmet.2011.10.008" target="_blank" >10.1016/j.synthmet.2011.10.008</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Exciton diffusion length in some thermocleavable polythiophenes by the surface photovoltage method

Popis výsledku v původním jazyce

Poly-3-(2-methylhexyloxycarbonyl) dithiophene (P3MHOCT), poly-3-carboxydithiophene (P3CT) and polythiophene (PT) polymers were studied by optical and optoelectronic methods to find diffusion length as one of the important parameters characterizing them as candidates for solar cells. Their important property is that P3MHOCT can serve as a precursor which, after thermal annealing, converts into more rigid and insoluble P3CT and further thermal treatment produces native unsubstituted PT. Ellipsometric measurement yielded data on the thickness of the spin coated layers; absorption coefficients were obtained from transmittance and reflectance spectra. Our method of surface photovoltage extended to thin semiconducting layers was utilized for extraction of diffusion length of photogenerated excitons. Higher diffusion lengths in P3CT and PT materials as compared with that in P3MHOCT can probably be ascribed to the increase of the crystalline fraction. The highest diffusion length was found in

Název v anglickém jazyce

Exciton diffusion length in some thermocleavable polythiophenes by the surface photovoltage method

Popis výsledku anglicky

Poly-3-(2-methylhexyloxycarbonyl) dithiophene (P3MHOCT), poly-3-carboxydithiophene (P3CT) and polythiophene (PT) polymers were studied by optical and optoelectronic methods to find diffusion length as one of the important parameters characterizing them as candidates for solar cells. Their important property is that P3MHOCT can serve as a precursor which, after thermal annealing, converts into more rigid and insoluble P3CT and further thermal treatment produces native unsubstituted PT. Ellipsometric measurement yielded data on the thickness of the spin coated layers; absorption coefficients were obtained from transmittance and reflectance spectra. Our method of surface photovoltage extended to thin semiconducting layers was utilized for extraction of diffusion length of photogenerated excitons. Higher diffusion lengths in P3CT and PT materials as compared with that in P3MHOCT can probably be ascribed to the increase of the crystalline fraction. The highest diffusion length was found in

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

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Projekt

<a href="/cs/project/GA202%2F09%2F1206" target="_blank" >GA202/09/1206: Nanokrystalické heterogenní sluneční fotovoltaické články</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2012

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

SYNTHETIC METALS

ISSN

0379-6779

e-ISSN

—

Svazek periodika

161

Číslo periodika v rámci svazku

23-24

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

5

Strana od-do

2727-2731

Kód UT WoS článku

000300653700040

EID výsledku v databázi Scopus

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