中国物理B ›› 2019, Vol. 28 ›› Issue (4): 47802-047802.doi: 10.1088/1674-1056/28/4/047802

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇    下一篇

Study of glass transition kinetics of As2S3 and As2Se3 by ultrafast differential scanning calorimetry

Fan Zhang(张凡), Yimin Chen(陈益敏), Rongping Wang(王荣平), Xiang Shen(沈祥), Junqiang Wang(王军强), Tiefeng Xu(徐铁峰)   

  1. 1 Laboratory of Infrared Material and Devices & Key Laboratory of Photoelectric Materials and Devices of Zhejiang Province, Advanced Technology Research Institute, Ningbo University, Ningbo 315211, China;
    2 Department of Microelectronic Science and Engineering, Faculty of Science, Ningbo University, Ningbo 315211, China;
    3 CAS Key Laboratory of Magnetic Materials and Devices & Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences(CAS), Ningbo 315201, China;
    4 Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
  • 收稿日期:2018-12-27 修回日期:2019-01-29 出版日期:2019-04-05 发布日期:2019-04-05
  • 通讯作者: Yimin Chen, Junqiang Wang E-mail:chenyimin@nbu.edu.cn;jqwang@nimte.ac.cn

Study of glass transition kinetics of As2S3 and As2Se3 by ultrafast differential scanning calorimetry

Fan Zhang(张凡)1, Yimin Chen(陈益敏)1,2, Rongping Wang(王荣平)1, Xiang Shen(沈祥)1, Junqiang Wang(王军强)3,4, Tiefeng Xu(徐铁峰)1   

  1. 1 Laboratory of Infrared Material and Devices & Key Laboratory of Photoelectric Materials and Devices of Zhejiang Province, Advanced Technology Research Institute, Ningbo University, Ningbo 315211, China;
    2 Department of Microelectronic Science and Engineering, Faculty of Science, Ningbo University, Ningbo 315211, China;
    3 CAS Key Laboratory of Magnetic Materials and Devices & Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology, Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences(CAS), Ningbo 315201, China;
    4 Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2018-12-27 Revised:2019-01-29 Online:2019-04-05 Published:2019-04-05
  • Contact: Yimin Chen, Junqiang Wang E-mail:chenyimin@nbu.edu.cn;jqwang@nimte.ac.cn

摘要:

Ultrafast differential scanning calorimetry (DSC) was employed to investigate the glass transition kinetics of As2S3 and As2Se3. By using the Arrhenius method, a fragility index of~22 can be estimated in both As2S3 and As2Se3. However, when the scanning rate is more than 200 K…-1, non-Arrhenius behavior can be observed in such “strong” liquids where the Vogel-Fulcher method is more accurate to describe the glass transition kinetics. The fragilities of As2S3 and As2Se3 glasses are thus extrapolated as 28.3±1.94 and 23.7±1.80, respectively. This indicates that, As2Se3 glass has a better structural stability and it is a better candidate for device applications.

关键词: ultrafast DSC, glass transition kinetics, fragility index

Abstract:

Ultrafast differential scanning calorimetry (DSC) was employed to investigate the glass transition kinetics of As2S3 and As2Se3. By using the Arrhenius method, a fragility index of~22 can be estimated in both As2S3 and As2Se3. However, when the scanning rate is more than 200 K…-1, non-Arrhenius behavior can be observed in such “strong” liquids where the Vogel-Fulcher method is more accurate to describe the glass transition kinetics. The fragilities of As2S3 and As2Se3 glasses are thus extrapolated as 28.3±1.94 and 23.7±1.80, respectively. This indicates that, As2Se3 glass has a better structural stability and it is a better candidate for device applications.

Key words: ultrafast DSC, glass transition kinetics, fragility index

中图分类号:  (Amorphous materials; glasses and other disordered solids)

  • 78.55.Qr
64.70.P- (Glass transitions of specific systems) 61.43.Fs (Glasses)