Cu2O:: Electrodeposition and characterization

被引：282

作者：

de Jongh, PE ^{[1
]}

Vanmaekelbergh, D ^{[1
]}

Kelly, JJ ^{[1
]}

机构：

[1] Univ Utrecht, Debye Res Inst, NL-3508 TA Utrecht, Netherlands

来源：

CHEMISTRY OF MATERIALS | 1999年 / 11卷 / 12期

关键词：

D O I：

10.1021/cm991054e

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：

Well-defined polycrystalline Cu2O was electrodeposited on transparent conducting substrates from alkaline Cu(II) lactate solutions. The morphology of the layers could be controlled by choosing the appropriate experimental conditions; the pH and temperature of the deposition solution were especially important. The growth of the oxide involves a thermally activated process, for which an activation energy of 0.8 eV was found. A mechanism for the deposition is proposed. The optical absorption of the electrodeposited oxide in the visible range was much weaker than expected for a direct semiconductor with a band gap of 2.0 eV. Finally, we show that it is possible to grow Cu2O inside an n-type TiO2 nanoporous matrix.

引用

页码：3512 / 3517

页数：6

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