EXISTENCE OF PERSISTENT PHOTOCONDUCTIVITY IN C-70

被引：9

作者：

HAMED, A

RASMUSSEN, H

HOR, PH

机构：

[1] Texas Center for Superconductivity, University of Houston, Houston

来源：

APPLIED PHYSICS LETTERS | 1994年 / 64卷 / 04期

关键词：

D O I：

10.1063/1.111094

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have observed a persistent photoconductivity effect (PPC) in C-70 films well above room temperature. The effect, which consists of a metastable increase in dark conductivity caused by brief exposure to light, exhibits characteristics very similar to the PPC previously observed in C-60 films. These characteristics include a magnitude of the effect independent of the light exposure temperature, the existence of a PPC even at 520 K, and the inability of subgap illumination to create or quench PPC. A common origin for the PPC in C-70 and C-60 seems plausible, and may be related to the distortions the fullerene molecules experience when charged.

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页码：526 / 528

页数：3

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