E.V. Marayeva - Ph.D. (Phys.-Math.), Saint Petersburg Electrotechnical University «LETI»

The features of physical and chemical processes that occur at the interface of grains of lead chalcogenides at the nanostructured oxidation were considered. We performed a comprehensive study of phase equilibria occurring in the Pb-S-O system using the methods of equilibrium geometrical thermodynamics, in particular, by the methods of partial pressures diagrams and triangulation. We determined the phase composition of nanodispersed materials based on lead sulfide obtained by precipitation from aqueous solutions with subsequent annealing. It was shown that the model proposed described qualitatively the formation of oxide phases in polycrystalline layers on the basis of lead selenide, as well as in the layers formed of lead sulfide nanoparticles.

 

1. Abrikosov N.KH., SHelimova L.E. Poluprovodnikovye materialy na osnove soedinenijj A^IVV^VI. M.: Nauka. 1975. 195 c.
2. Butkevich V.G., Bochkov V.D., Globus E.R. Fotopriemniki i fotopriemnye ustrojjstva na osnove polikristallicheskikh i ehpitaksialnykh khalkogenidov sloev svinca // Prikladnaja fizika. 2001. № 6. S. 66-112.
3. Aleksandrova O.A., Maksimov A.I., Moshnikov V.A., CHesnokova D.B. KHalkogenidy i oksidy ehlementov IV gruppy. Poluchenie, issledovanie, primenenie / pod red. V.A. Moshnikova. SPb.: Tekhnolit. 2008. 240 s.
4. Gorbunov N.I., Varfolomeev S.P., Dijjkov L.K., Medvedev F.K. Novye optoehlektronnye datchiki plameni // EHlektronika: Nauka, tekhnologija, biznes. 2005. № 2. S. 30-33.
5. Zlomanov V.P.Poluchenie i issledovanie nekotorykh fiziko-khimicheskikh svojjstv selenida svinca. Avtoreferat diss. - kand. khim. nauk. M. 1962.
6. Andreev S.I., Kamchatka M.I. Fiziko-khimicheskijj analiz processov poluchenija fotochuvstvitelnykh sloev na osnove sulfida svinca // Izvestija SPbGEHTU «LEHTI». 1994. Vyp. 471. S. 55-60.
7. Olesk S.A., Pikhtin A.N., JUnovich A.EH. Mekhanizmy izluchatelnojj rekombinacii v selenide svinca vblizi komnatnojj temperatury // Fizika i tekhnika poluprovodnikov. 1990. T. 24. Vyp. 5. S. 795-799.