Field-induced metal diffusion into C-60 thin films

被引：12

作者：

Zahab, A

Firlej, L

Brocard, F

Kirova, N

机构：

[1] Grp. Dynamique des Phases Condensees, Université Montpellier 2, 34095 Montpellier Cedex 05, place E. Bataillon

来源：

SYNTHETIC METALS | 1996年 / 77卷 / 1-3期

关键词：

fullerene; diffusion; films;

D O I：

10.1016/0379-6779(96)80058-0

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report the evolution in time of d.c. conductivity of polycrystalline thin films of C-60 at different temperatures and under various applied voltages. All films show a clear semiconducting behaviour. The initial resistivity (at T = 140 degrees C) and the activation energy are rho similar to 10(5) Ohm cm and E(a) similar to 0.5 eV, respectively. For various types of metallic electrodes M (M = Au, Ag or In), a field-induced conductivity increase by several orders of magnitude and an activation energy decrease are observed. The results are interpreted in terms of electrode metal diffusion into the film.

引用

页码：59 / 61

页数：3

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