Type

Conference Proceedings

Authors

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

Subjects

Physics

Topics
process formation porous inp koh electrolytes films focused ion beam x ray diffraction anodic formation surface

Growth and characterization of anodic Films on InP in KOH and (NH4)2S (2001)

Abstract The current-voltage characteristics of InP were investigated in (NH4)2S and KOH electrolytes. In both solutions, the observation of current peaks in the cyclic voltammetric curves was attributed to the growth of passivating films. The relationship between the peak currents and the scan rates suggests that the film formation process is diffusion controlled in both cases. The film thickness required to inhibit current flow was found to be much lower on samples anodized in the sulphide solution. Focused ion beam (FIB) secondary electron images of the surface films show that film cracking of the type reported previously for films grown in (NH4)2S is also observed for films grown in KOH. X-ray and electron diffraction measurements indicate the presence of In2O3 and InPO4 in films grown in KOH and In2S3 in films grown in (NH4)2S.
Collections Ireland -> University College Cork -> College of Science, Engineering and Food Science
Ireland -> University College Cork -> Chemistry - Conference Items
Ireland -> University College Cork -> Chemistry

Full list of authors on original publication

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