Optical properties of new chalcogenide glasses from the GeSe2-Sb2Se3-PbSe system

被引：20
|
作者：
Parvanov, Svedin [1 ]
Vassilev, Venceslav [2 ]
Tomova, Katerina [2 ]
机构：
[1] Univ Chem Technol & Met, Cent Res Lab, Sofia 1756, Bulgaria
[2] Univ Chem Technol & Met, Dept Semicond, Sofia 1756, Bulgaria
来源：
MATERIALS LETTERS | 2008年 / 62卷 / 12-13期
关键词：
chalcogenide glasses; optical materials and properties; semiconductors; thin films;
D O I：
10.1016/j.matlet.2007.11.029
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Optical properties of thin films in the GeSe2-Sb2Se3-PbSe system are studied as a function of the PbSe content and at different ratio GeSe2/Sb2Se3. Transmission spectra of thin films are investigated. From the above spectra the absorption coefficient CL for different PbSe content are derived. The increase of the absorption coefficient alpha is attributed to the increase of the current carriers density in the valence band. Optical band gap of the samples is determined using Tauc's procedure. A correlation between the optical band gap and the composition of these chalcogenide samples could be seen. This might result from the increasingly stronger metal character of the bond that leads to the formation of a complicated band gap structure. (c) 2008 Elsevier B.V. All fights reserved.
引用
收藏
页码：2021 / 2024
页数：4
相关论文
共 50 条
  • [31] Optical properties and structural rigidity of [(GeSe2)75(Sb2Se3)25]100-xTex chalcogenide glasses for potential applications in infrared filters and lenses
    Chauhan, Reetu
    Ismail, Yasser A. M.
    Aly, K. A.
    Sharma, Pankaj
    Sharma, Ram Chhavi
    Tyagi, Chetna
    Sharda, Sunanda
    JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, 2024, 35 (25)
  • [32] A Zn(II) ion-selective electrode based on chalcogenide As2Se3-Sb2Se3-ZnSe and GeSe2-ZnSe-ZnTe glasses
    Boycheva, SV
    Vassilev, VS
    Ivanova, ZG
    JOURNAL OF APPLIED ELECTROCHEMISTRY, 2002, 32 (03) : 281 - 285
  • [33] Electrode-limited conductivity of amorphous chalcogenide thin films from the GeSe2-Sb2Se3-ZnSe system
    Boycheva, S
    Vassilev, V
    JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS, 2002, 4 (01): : 33 - 40
  • [34] Preparation and properties of glasses and glass-ceramics based on GeSe2-Sb2Se3 and halides
    Calvez, Laurent
    Ma, Hong-Li
    Lucas, Jacques
    Zhang, Xianghua
    PHYSICS AND CHEMISTRY OF GLASSES-EUROPEAN JOURNAL OF GLASS SCIENCE AND TECHNOLOGY PART B, 2006, 47 (02): : 142 - 145
  • [35] New Quaternary Sb-Se-Ge-In Chalcogenide Glasses: Linear and Nonlinear Optical Properties
    Sharda, Sunanda
    Sharma, Neha
    Sharma, Pankaj
    Sharma, Vineet
    JOURNAL OF ELECTRONIC MATERIALS, 2013, 42 (12) : 3367 - 3372
  • [36] New Quaternary Sb-Se-Ge-In Chalcogenide Glasses: Linear and Nonlinear Optical Properties
    Sunanda Sharda
    Neha Sharma
    Pankaj Sharma
    Vineet Sharma
    Journal of Electronic Materials, 2013, 42 : 3367 - 3372
  • [37] Preparation and properties of GeSe2-Ga2Se3-KBr new chalcohalide glasses
    Tang, Gao
    Yang, Zhiyong
    Luo, Lan
    Chen, Wei
    JOURNAL OF ALLOYS AND COMPOUNDS, 2008, 459 (1-2) : 472 - 476
  • [38] Preparation and properties of GeSe2-Ga2Se3-KBr new chalcohalide glasses
    Tang, Gao
    Yang, Zhiyong
    Luo, Lan
    Chen, Wei
    Journal of Alloys and Compounds, 2008, 459 (1-2): : 472 - 476
  • [39] Formation of new chalcohalide glasses in GeSe2-Ga2Se3-KI system
    Wang, Hua
    Yang, Guang
    Xu, Yinsheng
    Zhang, Xianghua
    Gu, Zhenan
    Chen, Guorong
    Kuei Suan Jen Hsueh Pao/ Journal of the Chinese Ceramic Society, 2007, 35 (07): : 922 - 925
  • [40] THE STRUCTURAL PROPERTIES OF Sb2Se3-As2Se3 AND Sb2Te3-As2Se3 GLASSES
    Deli, M. Leh
    Boigny, D. Houphouet
    Kra, G.
    JOURNAL OF NON-OXIDE GLASSES, 2010, 2 (01): : 59 - 65
12345