Determination of the nonstoichiometry of cadmium selenide

Journal Article · Sat Nov 01 04:00:00 EST 1986 · Ind. Lab. (Engl. Transl.); (United States)

OSTI ID:6140071

Brezhnev, V Yu; Kharif, Ya L; Kovtunenko, P V

In the annealing of cadmium selenide crystals, cadmium dissolves in the crystals. As a result, their composition deviates from stoichiometry, which affects their electrical conductivity and photosensitivity. In order to obtain crystals with the required properties, it is necessary to determine the amount of dissolved cadmium, i.e., the nonstoichiometry of the crystals. In this paper, the authors experimented with and report on the two methods of extracting dissolved cadmium: recrystallization of the sample by evaporation and condensation; and by creating the conditions for the occurrence of a diffusion stream of cadmium from the bulk to the surface of the crystals.

• Research Organization: D. I. Mendeleev Moscow Institute of Chemical Technology, USSR
• OSTI ID: 6140071
• Journal Information: Ind. Lab. (Engl. Transl.); (United States), Journal Name: Ind. Lab. (Engl. Transl.); (United States) Vol. 52:5; ISSN INDLA
• Country of Publication: United States
• Language: Russian

Related Subjects

36 MATERIALS SCIENCE
360602* -- Other Materials-- Structure & Phase Studies
360603 -- Materials-- Properties
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102 -- Chemical & Spectral Procedures
400105 -- Separation Procedures
ANNEALING
CADMIUM
CADMIUM COMPOUNDS
CADMIUM SELENIDES
CHALCOGENIDES
CHEMICAL ANALYSIS
DIFFUSION
DISSOCIATION
DISSOLUTION
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELEMENTS
EVAPORATION
EXTRACTION
HEAT TREATMENTS
METALS
PHASE STUDIES
PHASE TRANSFORMATIONS
PHOTOCONDUCTIVITY
PHOTOMETRY
PHOTOSENSITIVITY
PHYSICAL PROPERTIES
QUANTITATIVE CHEMICAL ANALYSIS
RECRYSTALLIZATION
SELENIDES
SELENIUM
SELENIUM COMPOUNDS
SEMIMETALS
SENSITIVITY
SEPARATION PROCESSES
SOLUBILITY
STOICHIOMETRY
TEMPERATURE DEPENDENCE
THERMAL DIFFUSION
TIME DEPENDENCE
VAPOR CONDENSATION