On question of nature of matrix – amorphous composites with self forming semiconducting films

САМООБРАЗУЮЩАЯСЯ МАТРИЦА С ПОЛУПРВОДНИКОВОЙ ПЛЕНКОЙ – ПРИРОДА АМОРФНЫХ КОМПОЗИТОВ

A. Sarukhanishvili, T. Cheishvili, M. Mshvildadze, M. Kapanadze (Georgian Technical University)

Саруханишвили А.В., Чеишвили Т.Ш., Мшвилдадзе М.ДЖ., Капанадзе М.Б. (Грузинский технический университет)

ABSTRACT

Multimanganese borate and silicate vitreous bodies, at heat treatment on softezing lower temperatures are inclinated to formation on surface films with all signs of semiconductors. Most inklianated to formation such films has lithium containing, distinguishing by microliquation, amorphous (vitreous) bodies (matrixes).

On basis of experimental data and theoretical consideration it was offering the method of computation such films conductivity and on matrix – amorphous composites surface conducted processes own vision.

Film’s formation is associating with environment’s oxygen local action on matrix manganite structural units. After interaction appear vacancies of oxygen and twovalent manganese ions. Prevalence one of them evoked n – or p – type semiconducting. So, on matrix surface are developing processes corresponding with thouses at formation nonstoichiometry type of atomic (point) defects.

Composites with semiconducting films production’s main condition is on synthesis stage isolated manganese containing structural units formation assist. For that is necessary pay attention on matrix containing one and twovalent cations with twovalent manganese ions isomorphous series formation possibility, that cations oxides and manganites basicity and electrical properties. That factors calculation shown – lithium is more acceptable to formation on multimanganese borate and silicate composites surface films with low quantity of electrical resistance.