This article is cited in 2 papers

Electronic properties of semiconductors

Study of platinum impurity atom state in vitreous arsenic selenide

G. A. Bordovsky^a, A. V. Marchenko^a, T. Yu. Rabchanova^a, P. P. Seregin^a, E. I. Terukov^b, H. M. Ali<sup>c

a</sup> Herzen State Pedagogical University of Russia, 191186 St. Petersburg, Russia
^b Ioffe Physicotechnical Institute, Russian Academy of Sciences, 194021 St. Petersburg, Russia
^c Physics Department, Faculty of Science, Sohag University, 82524 Sohag, Egypt

Abstract: Platinum atoms in the structure of As$_2$Se$_3$ glass are stabilized in the form of Pt$^{2+}$ and Pt$^{4+}$ ions and correspond to ionized states of the amphoteric two-electron center with negative correlation energy (Pt$^{2+}$ is an ionized acceptor, and Pt$^{4+}$ is an ionized donor), whereas the neutral state of the Pt$^{3+}$ center appears to be unstable.

Received: 22.12.2011
Accepted: 30.12.2011

Language: English

 English version: Semiconductors, 2012, 46:7, 878–881

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