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Registration Number

0207U004592, 0104U002509 , R & D reports

Title

Improvement of processes of synthesis of chalcogenides of As2S3 and As2Se3, creation of devices for optoelectronics

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Head

Vodianyk Ivan Ivanovych,

Registration Date

10-05-2007

Organization

Kamenets-Podolsk State Pedagogical University

Description

Theoretical estimations of temperature terms of synthesis chalcogenides of As2S3 and As2Se3 are carried out on the basis of methods of chemical thermodynamics. Synthesized compounds and their solid solutions. Chemical composition of compounds is tested by the method of power dispersion emission. Within the limits of the realized temperatures conditions chemical composition of compounds differs from stoichiometric no more, than on (3...6)%. Researches the influence of terms of synthesis on the optical parameters of compounds. It is shown, that by the change of temperature of synthesis and speed of cooling it is possible to change such their parameters: density, width of the energy gap, index of refraction, coefficients of absorption linear and nonlinear, border of optical durability. The scopes of change of index of refraction enable to create construction "central area-shell" for making of optical fibres. By introduction of magnetic admixtures of manganese and itterbium transitions "diamagnetic-paramagnetic-feromagnetic" are carried out the that got phase of spin glass, that opens a way for creation of devices of spintronics. Possibility of the use of tapes of chalcogenides for defence of surfaces of semiconductors from oxidization is shown. Realizable experiments of record of optical images on tapes As2S3.

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