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The Electrochemical Society, ECS Transactions, 6(50), p. 319-334, 2013

DOI: 10.1149/05006.0319ecst

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Mechanism that Dictates Pore Width and A Pore Propagation in InP

Journal article published in 2013 by R. P. Lynch, N. Quill, C. O’Dwyer ORCID, S. Nakahara, D. N. Buckley
This paper is available in a repository.
This paper is available in a repository.

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Abstract

We report a mechanism for pore growth and propagation based on a three-step charge transfer model. The study is supported by electron microscopy analysis of highly doped n-InP samples anodised in aqueous KOH. The model and experimental data are used to explain propagation of pores of characteristic diameter preferentially along the <111>A directions. We also show evidence for deviation of pore growth from the <111>A directions and explain why such deviations should occur. The model is self-consistent and predicts how carrier concentration affects the internal dimensions of the porous structures.