ADSORBATE EFFECTS ON PHOTOLUMINESCENCE AND ELECTRICAL-CONDUCTIVITY OF POROUS SILICON

被引：153

作者：

BENCHORIN, M ^{[1
]}

KUX, A ^{[1
]}

SCHECHTER, I ^{[1
]}

机构：

[1] TECHNION ISRAEL INST TECHNOL,DEPT CHEM,IL-32000 HAIFA,ISRAEL

来源：

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

关键词：

D O I：

10.1063/1.111136

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Porous silicon (p type) has been exposed to several chemical vapors at various partial pressures. The quenching of the photoluminescence by the adsorbates has been quantified and correlation to the electrical conductivity of the porous silicon sample has been studied. Some gases, e.g., water and benzene, have a small effect on the photoluminescence and on the conductivity, while others, e.g., methanol, reduce the photoluminescence by a factor of 2 and increase the conductivity by four orders of magnitude. This is accompanied with a qualitative change in the current-voltage characteristics. These changes have been found to be reversible and the temporal behavior of the system has been investigated.

引用

页码：481 / 483

页数：3

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