Type

Journal Article

Authors

S. N. G. Chu
Simon B. Newcomb
David Sutton
V. J. Cunnane
D. Noel Buckley
T. Melly
Colm O'Dwyer
E. Harvey

Subjects

Chemistry

Topics
anodization koh electrolytes koh electrolyte transmission electron microscopy surface properties process formation anodic products inp electrodes

Electrochemical pore formation on InP in alkaline solutions (2001)

Abstract The surface properties of InP electrodes were examined following anodization in (NH4)2S and KOH electrolytes. In both solutions, the observation of current peaks in the cyclic voltammetric curves was attributed to selective etching of the substrate and a film formation process. AFM images of samples anodized in the sulfide solution, revealed surface pitting and TEM micrographs revealed the porous nature of the film formed on top of the pitted substrate. After anodization in the KOH electrolyte, TEM images revealed that a porous layer extending 500 nm into the substrate had been formed. Analysis of the composition of the anodic products indicates the presence of In2S3 in films grown in (NH4)2S and an In2O3 phase within the porous network formed in KOH.
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Full list of authors on original publication

S. N. G. Chu, Simon B. Newcomb, David Sutton, V. J. Cunnane, D. Noel Buckley, T. Melly, Colm O'Dwyer, E. Harvey

Experts in our system

1
D. Noel Buckley
University College Cork
Total Publications: 27
 
2
Colm O'Dwyer
University College Cork
Total Publications: 121