Conduction mechanisms in undoped thin films of C60 and C60/70

Jari Paloheimo, Heikki Isotalo, Johann Kastner, Hans Kuzmany

Research output: Contribution to journalArticleScientificpeer-review

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Abstract

Undoped thin films of C60 and C60/70 mixture have been electrically and optically characterized over a wide temperature range T=10…475 K. In this paper the results of the field-effect conductance, conductivity, thermoelectric power, thermoabsorption and electroabsorption measurements will be presented. The transittor studies gave an n-type behaviour, and the thermally activated field-effect conductance obeyed the Meyer-Neldel rule. The conductivity showed an activated temperature dependence above 250 K, too, but turned into a nonactivated dependence below 200 K. The results may be explained by assuming a distribution of gap states. Furthermore, we have deposited and characterized Langmuir-Blodgett films of C60/70 and its heterostructures with poly(3-hexylthiophene).

Original languageEnglish
Pages (from-to)3185 - 3190
Number of pages6
JournalSynthetic Metals
Volume56
Issue number2-3
DOIs
Publication statusPublished - 1993
MoE publication typeA1 Journal article-refereed

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conduction
Thin films
conductivity
Langmuir Blodgett films
Thermoelectric power
Langmuir-Blodgett films
thin films
Heterojunctions
Temperature
temperature dependence
temperature
poly(3-hexylthiophene)

Cite this

Paloheimo, J., Isotalo, H., Kastner, J., & Kuzmany, H. (1993). Conduction mechanisms in undoped thin films of C60 and C60/70. Synthetic Metals, 56(2-3), 3185 - 3190. https://doi.org/10.1016/0379-6779(93)90100-B
Paloheimo, Jari ; Isotalo, Heikki ; Kastner, Johann ; Kuzmany, Hans. / Conduction mechanisms in undoped thin films of C60 and C60/70. In: Synthetic Metals. 1993 ; Vol. 56, No. 2-3. pp. 3185 - 3190.
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abstract = "Undoped thin films of C60 and C60/70 mixture have been electrically and optically characterized over a wide temperature range T=10…475 K. In this paper the results of the field-effect conductance, conductivity, thermoelectric power, thermoabsorption and electroabsorption measurements will be presented. The transittor studies gave an n-type behaviour, and the thermally activated field-effect conductance obeyed the Meyer-Neldel rule. The conductivity showed an activated temperature dependence above 250 K, too, but turned into a nonactivated dependence below 200 K. The results may be explained by assuming a distribution of gap states. Furthermore, we have deposited and characterized Langmuir-Blodgett films of C60/70 and its heterostructures with poly(3-hexylthiophene).",
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Paloheimo, J, Isotalo, H, Kastner, J & Kuzmany, H 1993, 'Conduction mechanisms in undoped thin films of C60 and C60/70', Synthetic Metals, vol. 56, no. 2-3, pp. 3185 - 3190. https://doi.org/10.1016/0379-6779(93)90100-B

Conduction mechanisms in undoped thin films of C60 and C60/70. / Paloheimo, Jari; Isotalo, Heikki; Kastner, Johann; Kuzmany, Hans.

In: Synthetic Metals, Vol. 56, No. 2-3, 1993, p. 3185 - 3190.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Conduction mechanisms in undoped thin films of C60 and C60/70

AU - Paloheimo, Jari

AU - Isotalo, Heikki

AU - Kastner, Johann

AU - Kuzmany, Hans

PY - 1993

Y1 - 1993

N2 - Undoped thin films of C60 and C60/70 mixture have been electrically and optically characterized over a wide temperature range T=10…475 K. In this paper the results of the field-effect conductance, conductivity, thermoelectric power, thermoabsorption and electroabsorption measurements will be presented. The transittor studies gave an n-type behaviour, and the thermally activated field-effect conductance obeyed the Meyer-Neldel rule. The conductivity showed an activated temperature dependence above 250 K, too, but turned into a nonactivated dependence below 200 K. The results may be explained by assuming a distribution of gap states. Furthermore, we have deposited and characterized Langmuir-Blodgett films of C60/70 and its heterostructures with poly(3-hexylthiophene).

AB - Undoped thin films of C60 and C60/70 mixture have been electrically and optically characterized over a wide temperature range T=10…475 K. In this paper the results of the field-effect conductance, conductivity, thermoelectric power, thermoabsorption and electroabsorption measurements will be presented. The transittor studies gave an n-type behaviour, and the thermally activated field-effect conductance obeyed the Meyer-Neldel rule. The conductivity showed an activated temperature dependence above 250 K, too, but turned into a nonactivated dependence below 200 K. The results may be explained by assuming a distribution of gap states. Furthermore, we have deposited and characterized Langmuir-Blodgett films of C60/70 and its heterostructures with poly(3-hexylthiophene).

U2 - 10.1016/0379-6779(93)90100-B

DO - 10.1016/0379-6779(93)90100-B

M3 - Article

VL - 56

SP - 3185

EP - 3190

JO - Synthetic Metals

JF - Synthetic Metals

SN - 0379-6779

IS - 2-3

ER -