ETCHING OF CDS IN AQUEOUS HALOGEN SOLUTIONS

被引：7

作者：

DEWIT, AR

KELLY, JJ

机构：

来源：

BERICHTE DER BUNSEN-GESELLSCHAFT-PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 1991年 / 95卷 / 06期

关键词：

DISSOLUTION; ELECTROCHEMISTRY; INTERFACES; SEMICONDUCTORS;

D O I：

10.1002/bbpc.19910950603

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Dissolution of CdS in aqueous solutions of Br2 and I2 has been studied by ring-disc voltammetry and flow-cell measurements. The semiconductor is etched chemically at a considerable rate by Br2. CdS is dissolved in I2 solutions only when a high concentration of chloride ions is present. It is suggested that inter-halogen species play a role. A novel chemical etching reaction was observed in the iodine case; cathodic reduction of iodine produces an intermediate capable of oxidizing the semiconductor.

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页码：670 / 674

页数：5

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