J4 ›› 2015, Vol. 32 ›› Issue (1): 107-112.

• 半导体光电 • 上一篇    下一篇

Ga掺杂ZnO氧化物的热学性能的研究

马硕章1,张飞鹏2,3*,房慧1,张忻3,路清梅3,张久兴3   

  1. 1 广西民族师范学院 物理与电子工程系,崇左532200; 2 河南城建学院 数理学院,平顶山 467036; 3 北京工业大学材料科学与工程学院 新型功能材料教育部重点实验室,北京 100124
  • 收稿日期:2014-03-05 修回日期:2014-09-09 出版日期:2015-01-28 发布日期:2015-02-04
  • 通讯作者: 马硕章(1975-)广西宾阳人,讲师,硕士,主要从事计算物理方面的研究. E-mail:365185860@qq.com
  • 基金资助:
    国家自然科学基金项目(11347141),北京市自然科学基金项目(2112007)和河南城建学院“青年骨干教师”项目资助

Thermal Properties of Ga Doped ZnO Oxide

Ma Shuozhang1, Zhang Feipeng2,3*, Fang Hui1, Zhang Xin3, Lu Qingmei3, Zhang Jiuxing3   

  1. 1 Department of Physics and Electronic Engineering, Guangxi Normal University for Nationalities, Chongzuo 532200, P. R. China; 2 Institute of Physics, Henan University of Urban Construction, Pingdingshan 467036, P. R. China; 3 National Key Laboratory of Advanced Functional Materials, Chinese Ministry of Education, College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, P. R. China)
  • Received:2014-03-05 Revised:2014-09-09 Published:2015-01-28 Online:2015-02-04

摘要: 在密度泛函理论和线性响应的密度泛函微扰理论基础上通过第一性原理计算的方法研究了Ga掺杂ZnO氧化物的热学参数和热学性能。计算结果表明,Ga掺杂使ZnO氧化物晶胞增大;在所研究温度范围内,纯的ZnO和Ga掺杂的ZnO的晶格热容均随温度升高不断增大,其晶格热容在最高温度900K分别达到16.5 Cal.mol-1K-1和31.3Cal.mol-1K-1。纯的ZnO和Ga掺杂的ZnO的德拜温度 均随温度升高不断增大。Ga掺杂在ZnO中引入了新的振动模式。

关键词: 材料, ZnO, Ga掺杂, 热学性能

Abstract: The thermal consants and the thermal transport properties of the Ga doped wurrite type ZnO have been investigated by ab-initial calculations based on the density functional theory as well as the linear response density perturbation functional theory. The results show that the Ga doped wurrite type ZnO has increased lattice. The lattice heat capacity increases with increasing temperature for both systems, and the heat capacities reach 16.5 Cal.mol-1K-1 and 31.3Cal.mol-1K-1 for the pure ZnO and the Ga doped ZnO at 900K, respectively. The Debye temperature increases with increasing temperature for both systems. There are new vibrational modes that has been introduced by Ga doping.

Key words: materials, ZnO, Ga doping, thermal properties

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