Photocapacitance spectroscopy of surface states on indium phosphide photoelectrodes

C. E. Goodman*, B. W. Wessels, P. G.P. Ang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

17 Scopus citations


Indium phosphide photoelectrodes have been studied in situ using electrochemical photocapacitance spectroscopy. The observed photocapacitance spectra were a strong function of electrode surface conditions. The photoionization energies of the chemically induced surface states correlated well with previously reported values determined by surface photovoltage spectroscopy. The chemical treatment of the InP electrode surface with Co and Pt reduced the concentration of deep level interface states near the valence band and introduced a new state at Ev+1.2 eV.

Original languageEnglish (US)
Pages (from-to)442-444
Number of pages3
JournalApplied Physics Letters
Issue number4
StatePublished - 1984

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


Dive into the research topics of 'Photocapacitance spectroscopy of surface states on indium phosphide photoelectrodes'. Together they form a unique fingerprint.

Cite this