Comparison of the electron work function, hole concentration and exciton diffusion length for P3HT and PT prepared by thermal or acid cleavage

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F16%3A00452185" target="_blank" >RIV/68378271:_____/16:00452185 - isvavai.cz</a>

Alternative codes found

RIV/61388955:_____/16:00452185 RIV/00216208:11310/16:10326310 RIV/00216208:11320/16:10326310

Result on the web

<a href="http://dx.doi.org/10.1016/j.sse.2015.11.002" target="_blank" >http://dx.doi.org/10.1016/j.sse.2015.11.002</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.sse.2015.11.002" target="_blank" >10.1016/j.sse.2015.11.002</a>

Result language

angličtina

Original language name

Comparison of the electron work function, hole concentration and exciton diffusion length for P3HT and PT prepared by thermal or acid cleavage

Original language description

The electron work function, hole concentration and diffusion length were compared for poly(3-hexylthiophene) polymer (P3HT) that is commonly used for construction of solar cells, and two types of native polythiophene (PT) samples which are prospective candidates for this purpose. The polythiophene samples were prepared from 2 different precursors by thermal or chemical treatment at room temperature. Cyclic voltammetry and work function measurements were used for estimating the concentration of holes. The measured data were evaluated assuming the validity of band theory based on the tight-binding model. Published data on the valence bandwidth were used for calculating the value of the overlap integral which is related to the hole effective mass. Energy band diagrams were constructed for all 3 materials. Finally, the exciton diffusion length, which is a critical parameter for the application of conjugated polymer materials in solar cells, was measured by a modified surface photovoltage method. The approach allowed us to identify the differences in the material properties related to the processing method. Morphology of the samples determined by AFM was another tool showing these differences. It is stated that a native polythiophene prepared by treatment with acids is a prospective material for solar cells and shows a similar quality as that produced by a thermal process.

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

—

Project

<a href="/en/project/GA14-05053S" target="_blank" >GA14-05053S: Preparation and properties of nanocrystalline diamond for photonic applications</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2016

Confidentiality

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

Name of the periodical

Solid-State Electronics

ISSN

0038-1101

e-ISSN

—

Volume of the periodical

116

Issue of the periodical within the volume

FEB 2016

Country of publishing house

GB - UNITED KINGDOM

Number of pages

8

Pages from-to

111-118

UT code for WoS article

000367542100020

EID of the result in the Scopus database

2-s2.0-84947606063