Photocapacitance spectroscopy of surface states on indium phosphide photoelectrodes

C. E. Goodman; B. W. Wessels; P. G.P. Ang

doi:10.1063/1.95251

Photocapacitance spectroscopy of surface states on indium phosphide photoelectrodes

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

^*Corresponding author for this work

Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

Abstract

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 E_v+1.2 eV.

Original language	English (US)
Pages (from-to)	442-444
Number of pages	3
Journal	Applied Physics Letters
Volume	45
Issue number	4
DOIs	https://doi.org/10.1063/1.95251
State	Published - 1984

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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title = "Photocapacitance spectroscopy of surface states on indium phosphide photoelectrodes",

abstract = "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.",

author = "Goodman, {C. E.} and Wessels, {B. W.} and Ang, {P. G.P.}",

year = "1984",

doi = "10.1063/1.95251",

language = "English (US)",

volume = "45",

pages = "442--444",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics Publising LLC",

number = "4",

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TY - JOUR

T1 - Photocapacitance spectroscopy of surface states on indium phosphide photoelectrodes

AU - Goodman, C. E.

AU - Wessels, B. W.

AU - Ang, P. G.P.

PY - 1984

Y1 - 1984

N2 - 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.

AB - 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.

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U2 - 10.1063/1.95251

DO - 10.1063/1.95251

M3 - Article

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JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 4

ER -

Photocapacitance spectroscopy of surface states on indium phosphide photoelectrodes

Abstract

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