Electric field dependence of the electron mobility in bulk wurtzite ZnO

Bulletin of materials science

K Alfaramawi¹ 

[1] Science Department, Teachers College, King Saud University, Riyadh 11451, Saudi Arabia$$Physics Department, Faculty of Science, Alexandria University, Alexandria 21511, Egypt$$Science Department, Teachers College, King Saud University, Riyadh 11451, Saudi ArabiaScience Department, Teachers College, King Saud University, Riyadh 11451, Saudi Arabia$$Physics Department, Faculty of Science, Alexandria University, Alexandria 21511, Egypt$$Physics Department, Faculty of Science, Alexandria University, Alexandria 21511, EgyptScience Department, Teachers College, King Saud University, Riyadh 11451, Saudi Arabia$$Physics Department, Faculty of Science, Alexandria University, Alexandria 21511, Egypt$$

关键词: Electron drift velocity;    low-field mobility;    saturation velocity.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

The electric field dependence of the electron mobility in bulk wurtzite zinc oxide (ZnO) material is studied. The low-field electron mobility is calculated as a function of doping concentration and lattice temperature. The results show that above nearly 50 K the electrical conduction is governed by activation through the bulk material and the conduction is then influenced by both lattice and impurity scattering mechanisms. The high-field characteristics are also considered. The transition between the low-field and high-field regions is specified. The negative differential mobility for bulk ZnO at room temperature is observed at electric fields above 280 kV/cm.

【 授权许可】

Unknown