Anodic behavior of InP: film growth, porous structures and current oscillations.
dc.contributor.author | Buckley, D. Noel | |
dc.contributor.author | O'Dwyer, Colm | |
dc.contributor.author | Harvey, E. | |
dc.contributor.author | Melly, T. | |
dc.contributor.author | Sutton, David | |
dc.contributor.author | Newcomb, Simon B. | |
dc.date.accessioned | 2016-07-21T08:54:17Z | |
dc.date.available | 2016-07-21T08:54:17Z | |
dc.date.issued | 2003-04 | |
dc.date.updated | 2012-11-30T12:12:07Z | |
dc.description.abstract | We review our recent work on the anodization of InP in KOH electrolytes. The anodic oxidation processes are shown to be remarkably different in different concentrations of KOH. Anodization in 2 - 5 mol dm-3 KOH electrolytes results in the formation of porous InP layers but, under similar conditions in a 1 mol dm-3 KOH, no porous structure is evident. Rather, the InP electrode is covered with a thin, compact surface film at lower potentials and, at higher potentials, a highly porous surface film is formed which cracks on drying. Anodization of electrodes in 2 - 5 mol dm-3 KOH results in the formation of porous InP under both potential sweep and constant potential conditions. The porosity is estimated at ~65%. A thin layer (~ 30 nm) close to the surface appears to be unmodified. It is observed that this dense, near-surface layer is penetrated by a low density of pores which appear to connected it to the electrolyte. Well-defined oscillations are observed when InP is anodized in both the KOH and (NH4)2S. The charge per cycle remains constant at 0.32 C cm-2 in (NH4)2S but increases linearly with potential in KOH. Although the characteristics of the oscillations in the two systems differ, both show reproducible and well-behaved values of charge per cycle. | en |
dc.description.status | Peer reviewed | en |
dc.description.uri | http://www.electrochem.org/203 | en |
dc.description.version | Accepted Version | en |
dc.format.mimetype | application/pdf | en |
dc.identifier.citation | Buckley, D. N., O’Dwyer, C., Harvey, E., Melly, T., Sutton, D. and Newcomb, S. B. (2003) 'Anodic behavior of InP: film growth, porous structures and current oscillations', State-of-the-Art Program on Compound Semiconductors (SOTAPOCS XXXVIII) and Wide-Bandgap Semiconductors for Photonic and Electronic Devices and Sensors III, 203rd ECS Meeting, Palais des Congres de Paris, France, 27 April - 2 May. Proceedings - Electrochemical Society, Vol. 4, pp. 48-62. ISBN 1-56677-349-0. | en |
dc.identifier.endpage | 62 | en |
dc.identifier.isbn | 1-56677-349-0 | |
dc.identifier.journaltitle | Proceedings - Electrochemical Society | en |
dc.identifier.startpage | 48 | en |
dc.identifier.uri | https://hdl.handle.net/10468/2909 | |
dc.identifier.volume | 4 | en |
dc.language.iso | en | en |
dc.publisher | Electrochemical Society | en |
dc.relation.uri | http://www.electrochem.org/dl/pv/published/2003/2003.htm | |
dc.rights | © 2003, Electrochemical Society | en |
dc.subject | KOH electrolytes | en |
dc.subject | Anodic formation | en |
dc.subject | Transmission electron microscopy | en |
dc.subject | Anodization | en |
dc.subject | Anodic oxidation | en |
dc.subject | Oscillatory behavior | en |
dc.title | Anodic behavior of InP: film growth, porous structures and current oscillations. | en |
dc.type | Article (peer-reviewed) | en |