Electroless etching of ZnSe in aqueous ferricyanide solutions: An electrochemical study

G.H. Schoenmakers, E.P.A.M. Bakkers, J.J. Kelly

Research output: Contribution to journalArticleAcademicpeer-review

33 Citations (Scopus)
82 Downloads (Pure)

Abstract

Using electrochemical and in situ luminescence measurements we show that ferricyanide ions are reduced at n-type ZnSe electrodes by hole injection into the valence band of the semiconductor. At negative potentials the holes recombine with electrons and electroluminescence is observed. At the open-circuit potential, the injected holes are used for the oxidation and dissolution of the semiconductor. This electroless etching reaction is under mixed diffusion/kinetic control at 20°C, but becomes diffusion controlled at higher temperature. U7 - Export Date: 2 August 2010 U7 - Source: Scopus
Original languageEnglish
Pages (from-to)2329-2333
JournalJournal of the Electrochemical Society
Volume144
Issue number7
DOIs
Publication statusPublished - 1997

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