Correlation between the photosensitivity changes of CdS films and the surface chemical modifications analyzed by XRFS and LEEIXS

Journal Article · Fri Mar 01 00:00:00 EST 1985 · J. Electrochem. Soc.; (United States)

DOI:https://doi.org/10.1149/1.2113931· OSTI ID:6342326

Josseauz, P; Kirsch-De Mesmaeker, A; Montes, H; Roche, A; Romand, M

The photocurrent increase as a function of the illumination time of a CdS film in contact with basic aqueous solutions, in the absence and in the presence of cysteine 1M, is correlated to the intensity of the X emission of Cd and S in XRFS and of O in LEEIXS. The evolution of the photocurrent spectra is also examined. This correlation and the comparison of the X emission spectra of O of illuminated CdS with those of CdO and Cd(OH)/sub 2/ indicate that the CdS photosensitivity increase is due to hydroxylated intermediates of the CdS photocorrosion. CdO, an end product of the photodegradation, is responsible for the slow photocurrent decrease, which occurs after longer irradiation times of the junction.

• Research Organization: Faculte des Sciences, Universite Libre de Bruxelles, Brussels
• OSTI ID: 6342326
• Journal Information: J. Electrochem. Soc.; (United States), Vol. 132:3
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
42 ENGINEERING
CADMIUM SULFIDES
PHOTOCHEMISTRY
PHOTOSENSITIVITY
SURFACE PROPERTIES
AQUEOUS SOLUTIONS
CADMIUM HYDROXIDES
CADMIUM OXIDES
CORRELATIONS
ELECTROCHEMICAL CORROSION
EMISSION SPECTRA
HYDROXY COMPOUNDS
PHOTOCURRENTS
SEMICONDUCTOR JUNCTIONS
THIN FILMS
X-RAY EMISSION ANALYSIS
CADMIUM COMPOUNDS
CHALCOGENIDES
CHEMICAL ANALYSIS
CHEMICAL REACTIONS
CHEMISTRY
CORROSION
CURRENTS
DISPERSIONS
ELECTRIC CURRENTS
FILMS
HYDROGEN COMPOUNDS
HYDROXIDES
INORGANIC PHOSPHORS
JUNCTIONS
MIXTURES
NONDESTRUCTIVE ANALYSIS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHOSPHORS
SENSITIVITY
SOLUTIONS
SPECTRA
SULFIDES
SULFUR COMPOUNDS
360603* - Materials- Properties
400500 - Photochemistry
420800 - Engineering- Electronic Circuits & Devices- (-1989)