Rubbing effect on surface morphology and thermoelectric properties of TTF-TCNQ thin films

E. Tamayo; K. Hayashi; T. Shinano; Y. Miyazaki; T. Kajitani

doi:10.1016/j.apsusc.2010.02.046

Rubbing effect on surface morphology and thermoelectric properties of TTF-TCNQ thin films

E. Tamayo, K. Hayashi, T. Shinano, Y. Miyazaki, T. Kajitani

ENG - Applied Physics

Research output: Contribution to journal › Article › peer-review

14 Citations (Scopus)

Abstract

Thin films of tetrathiofulvalene-tetracyanoquinodimethane (TTF-TCNQ), a typical organic material of charge transfer salts, were prepared on glass substrates by evaporation using TTF-TCNQ powder. The rubbing effect on the surface morphology and thermoelectric properties was studied. TTF-TCNQ films exhibited a bush-like disordered growth on the as-received glass substrate, whereas those on the rubbed glass substrate had extremely flat surfaces tiled with small rectangular TTF-TCNQ single crystals. Due to the ordered alignment of TTF-TCNQ tiles, improvement in the electrical conductivity and enhancement of the Seebeck coefficient were achieved.

Original language	English
Pages (from-to)	4554-4558
Number of pages	5
Journal	Applied Surface Science
Volume	256
Issue number	14
DOIs	https://doi.org/10.1016/j.apsusc.2010.02.046
Publication status	Published - 2010 May 1

Keywords

Organic thin film
Rubbing technique
TTF-TCNQ
Thermoelectric conversion

ASJC Scopus subject areas

Chemistry(all)
Condensed Matter Physics
Physics and Astronomy(all)
Surfaces and Interfaces
Surfaces, Coatings and Films

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10.1016/j.apsusc.2010.02.046

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title = "Rubbing effect on surface morphology and thermoelectric properties of TTF-TCNQ thin films",

abstract = "Thin films of tetrathiofulvalene-tetracyanoquinodimethane (TTF-TCNQ), a typical organic material of charge transfer salts, were prepared on glass substrates by evaporation using TTF-TCNQ powder. The rubbing effect on the surface morphology and thermoelectric properties was studied. TTF-TCNQ films exhibited a bush-like disordered growth on the as-received glass substrate, whereas those on the rubbed glass substrate had extremely flat surfaces tiled with small rectangular TTF-TCNQ single crystals. Due to the ordered alignment of TTF-TCNQ tiles, improvement in the electrical conductivity and enhancement of the Seebeck coefficient were achieved.",

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T1 - Rubbing effect on surface morphology and thermoelectric properties of TTF-TCNQ thin films

AU - Tamayo, E.

AU - Hayashi, K.

AU - Shinano, T.

AU - Miyazaki, Y.

AU - Kajitani, T.

PY - 2010/5/1

Y1 - 2010/5/1

N2 - Thin films of tetrathiofulvalene-tetracyanoquinodimethane (TTF-TCNQ), a typical organic material of charge transfer salts, were prepared on glass substrates by evaporation using TTF-TCNQ powder. The rubbing effect on the surface morphology and thermoelectric properties was studied. TTF-TCNQ films exhibited a bush-like disordered growth on the as-received glass substrate, whereas those on the rubbed glass substrate had extremely flat surfaces tiled with small rectangular TTF-TCNQ single crystals. Due to the ordered alignment of TTF-TCNQ tiles, improvement in the electrical conductivity and enhancement of the Seebeck coefficient were achieved.

AB - Thin films of tetrathiofulvalene-tetracyanoquinodimethane (TTF-TCNQ), a typical organic material of charge transfer salts, were prepared on glass substrates by evaporation using TTF-TCNQ powder. The rubbing effect on the surface morphology and thermoelectric properties was studied. TTF-TCNQ films exhibited a bush-like disordered growth on the as-received glass substrate, whereas those on the rubbed glass substrate had extremely flat surfaces tiled with small rectangular TTF-TCNQ single crystals. Due to the ordered alignment of TTF-TCNQ tiles, improvement in the electrical conductivity and enhancement of the Seebeck coefficient were achieved.

KW - Organic thin film

KW - Rubbing technique

KW - TTF-TCNQ

KW - Thermoelectric conversion

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DO - 10.1016/j.apsusc.2010.02.046

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JO - Applied Surface Science

JF - Applied Surface Science

IS - 14

ER -

Rubbing effect on surface morphology and thermoelectric properties of TTF-TCNQ thin films

Abstract

Keywords

ASJC Scopus subject areas

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