• Complex
  • Title
  • Keyword
  • Abstract
  • Scholars
  • Journal
  • ISSN
  • Conference
搜索

Author:

Bai, N. (Bai, N..) | Liu, F. R. (Liu, F. R..) (Scholars:刘富荣) | Han, X. X. (Han, X. X..) | Zhu, Z. (Zhu, Z..) | Liu, F. (Liu, F..) | Lin, X. (Lin, X..) | Sun, N. X. (Sun, N. X..)

Indexed by:

EI Scopus SCIE

Abstract:

In this paper, the influence of Sn doping (0%, 8% and 14%) on the crystallization of Ge2Sb2Te5 was studied with the aid of an ultraviolet laser. The XRD analyses revealed that the addition of Sn maintained the NaCl-type structure of Ge2Sb2Te5 after crystallization but expanded the lattice parameter due to the smaller atomic radii of Ge replaced by Sn. Raman peaks (123, 150 and 110 cm(-1)) moved towards lower wavenumbers (118, 137 and 104 cm(-1)), which can be explained by the remarkable decrease of the binding energy from Ge-Te to Sn-Te. A remarkable increase in optical contrast from 15% to 40% was observed in the Sn-doped Ge2Sb2Te5 film after crystallization with both the isothermal annealing and laser radiance. While the optical contrast changed little for a fixed volume fraction of Sn-doped sample with the variation of laser fluence which is attributed to the crystallization mechanism induced by laser under different fluences is the same. (C) 2014 Elsevier B.V. All rights reserved.

Keyword:

Sn doping Crystallization Ge-Sb-Te Optical contrast Ultraviolet laser

Author Community:

  • [ 1 ] [Bai, N.]Beijing Univ Technol, Inst Laser Engn, Beijing 100124, Peoples R China
  • [ 2 ] [Liu, F. R.]Beijing Univ Technol, Inst Laser Engn, Beijing 100124, Peoples R China
  • [ 3 ] [Han, X. X.]Beijing Univ Technol, Inst Laser Engn, Beijing 100124, Peoples R China
  • [ 4 ] [Zhu, Z.]Beijing Univ Technol, Inst Laser Engn, Beijing 100124, Peoples R China
  • [ 5 ] [Liu, F.]Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian, Peoples R China
  • [ 6 ] [Lin, X.]Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian, Peoples R China
  • [ 7 ] [Sun, N. X.]Northeastern Univ, Dept Elect & Comp Engn, Boston, MA 02115 USA

Reprint Author's Address:

  • 刘富荣

    [Liu, F. R.]Beijing Univ Technol, Inst Laser Engn, Beijing 100124, Peoples R China

Show more details

Related Keywords:

Source :

APPLIED SURFACE SCIENCE

ISSN: 0169-4332

Year: 2014

Volume: 316

Page: 202-206

6 . 7 0 0

JCR@2022

ESI Discipline: MATERIALS SCIENCE;

ESI HC Threshold:341

JCR Journal Grade:1

CAS Journal Grade:2

Cited Count:

WoS CC Cited Count: 21

SCOPUS Cited Count: 22

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 4

Online/Total:1120/10634406
Address:BJUT Library(100 Pingleyuan,Chaoyang District,Beijing 100124, China Post Code:100124) Contact Us:010-67392185
Copyright:BJUT Library Technical Support:Beijing Aegean Software Co., Ltd.