Electrical and optical properties of indium-modified Se2Sb 2Te6 films

S. T. Mahmoud, N. Qamhieh, H. Ghamlouche, A. Ayesh

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

The electrical and optical characteristics of indium-doped Se 2Sb2Te6 phase-change alloy are studied in this paper. It is found that adding indium to Se2Sb2Te 6 alloy increases its amorphous-crystalline transition temperature, TC, and reduces the electrical conduction activation energy. The capacitance-temperature measurements showed a drastic change in the capacitance of the modified film as the temperature approaches TC and eventually the capacitance becomes negative and nonlinear. The negativity and nonlinearity in the capacitance-voltage dependence can be attributed to the growth of conductive crystalline islands with increasing temperature.

Original languageEnglish
Article number025703
JournalPhysica Scripta
Volume83
Issue number2
DOIs
Publication statusPublished - Feb 1 2011

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Mathematical Physics
  • Condensed Matter Physics

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