Pressure dependent conductivity of BO-C10 TCNQ

Heikki Isotalo, Gen Yunome, Reiko Azumi, Mitsuyoshi Matsumoto, Takayoshi Nakamura, Sachio Horiuchi, Hideki Yamochi, Gunzi Saito

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Abstract

The conductivity as a function of pressure of bis(ethylenedioxy)tetrathiafulvalene 2-decyl-7,7,8,8-tetracyanoquinodinethane mono/multilayer film is reported. First conductivity is measured on the water in the Langmuir-Blodgett trough starting from separate molecules. Secondly monolayers were collected on a solid substrate and separate conductivity measurements under hydrostatic pressure (0 - 14.5 kbar) were made. The ambient pressure conductivity of the 20 monolayer films increased more than one order of magnitude from that of the monolayer conductivity at the air/water interface: ≈0.6 S/cm. The conductivity was further increased by the hydrostatic pressure (−2 at 10 kbar). At the same time the temperature of the maximum conductivity begun to shift to higher temperatures after 6 – 8 kbar. Thermal fluctuation induced tunnelling model describes well the conductivity behaviour under hydrostatic pressure at low temperatures.
Original languageEnglish
Pages (from-to)1229-1230
JournalSynthetic Metals
Volume70
Issue number1-3
DOIs
Publication statusPublished - 1995
MoE publication typeA1 Journal article-refereed

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    Isotalo, H., Yunome, G., Azumi, R., Matsumoto, M., Nakamura, T., Horiuchi, S., Yamochi, H., & Saito, G. (1995). Pressure dependent conductivity of BO-C10 TCNQ. Synthetic Metals, 70(1-3), 1229-1230. https://doi.org/10.1016/0379-6779(94)02831-I