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Electrochemical Deposition, Optical Properties, and Photoelectrochemical Behavior of CdTe Films

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Title: Electrochemical Deposition, Optical Properties, and Photoelectrochemical Behavior of CdTe Films
Authors: Takahashi, Makoto Browse this author
Uosaki, Kohei Browse this author →KAKEN DB
Kita, Hideaki Browse this author
Keywords: electrodeposition
semiconductor thin films
cadmium alloys
tellurium alloys
electron-hole recombination
grain boundaries
heat treatment
electric current
electric potential
Issue Date: 1984
Publisher: The Electrochemical Society
Journal Title: Journal of The Electrochemical Society
Volume: 131
Issue: 10
Start Page: 2304
End Page: 2307
Publisher DOI: 10.1149/1.2115245
Abstract: Electrochemical deposition of cadmium telluride from acidic solutions containing CdSO4 and TeO2 is studied and the current-potential expression for this reaction is presented. The electrochemically deposited CdTe films are photoactive, and the maximum cathodic photocurrent due to hydrogen evolution is observed at CdTe films deposited at -0.40V. The photocurrents of the as-grown CdTe films are relatively small compared with those of CdTe single crystals. The major reason for this low efficiency is the effective recombination of hole-electron pairs at grain boundaries and at the surface. The photocurrents are increased significantly by the increase of crystallite diameter by the heat-treatment in a He atmosphere and by the removal of surface Te, which acts as a recombination center, by the etching treatment.
Rights: © The Electrochemical Society, Inc. 1984. All rights reserved. Except as provided under U.S. copyright law, this work may not be reproduced, resold, distributed, or modified without the express permission of The Electrochemical Society (ECS). The archival version of this work was published in J. Electrochem. Soc. 1984 volume 131, issue 10, 2304-2307.
Type: article
Appears in Collections:理学院・理学研究院 (Graduate School of Science / Faculty of Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 魚崎 浩平

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