Saturation and negative differential resistance in volt-ampere characteristics of the photocurrent in CdSe films

Journal Article · Thu Jan 01 00:00:00 EST 1987 · Inorg. Mater. (Engl. Transl.); (United States)

OSTI ID:5798613

Smyntyna, V A

The manifestation of the saturation- and negative-differential-resistance-parts in the volt-ampere characteristics of cadmium selenide films is due to the formation of chemisorbed, electrical domains, stimulated by Joule heating of the films. Increase in the sample temperature on account of external heating leads to decrease in the power given off in the sample, at which the chemisorption process is activated. An investigation of the volt-ampere characteristics at different temperatures and at different wavelengths of the primary illumination showed that the domains, mentioned above, are formed on the surface of the samples investigated as a result of the trapping of electrons from the conduction band at the chemisorbed oxygen level.

• Research Organization: I. I. Mechnikov Odessa State Univ., USSR
• OSTI ID: 5798613
• Journal Information: Inorg. Mater. (Engl. Transl.); (United States), Vol. 22:8; Other Information: Translated from Izv. Akad. Nauk. SSSR, Neorg. Mater.; 22: No. 8, 1259-1263(Aug 1986)
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CADMIUM SELENIDES
PHOTOCONDUCTIVITY
PHOTOCURRENTS
TEMPERATURE EFFECTS
CHEMICAL VAPOR DEPOSITION
CHEMISORPTION
DEBYE LENGTH
ELECTRIC POTENTIAL
ELECTRONS
OXYGEN
RESISTANCE HEATING
THIN FILMS
TRAPPING
VISIBLE RADIATION
CADMIUM COMPOUNDS
CHALCOGENIDES
CHEMICAL COATING
CHEMICAL REACTIONS
CURRENTS
DEPOSITION
DIMENSIONS
ELECTRIC CONDUCTIVITY
ELECTRIC CURRENTS
ELECTRIC HEATING
ELECTRICAL PROPERTIES
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
ELEMENTS
FERMIONS
FILMS
HEATING
LENGTH
LEPTONS
NONMETALS
PHYSICAL PROPERTIES
RADIATIONS
SELENIDES
SELENIUM COMPOUNDS
SEPARATION PROCESSES
SORPTION
SURFACE COATING
360603* - Materials- Properties