Properties of Mn- and Co-doped bulk ZnO crystals

被引：27
作者：
Polyakov, AY
Smirnov, NB
Govorkov, AV
Kozhukhova, EA
Heo, YW
Ivill, MP
Ip, K
Norton, DP
Pearton, SJ
Kelly, J
Rairigh, R
Hebard, AF
Steiner, T
机构：
[1] Inst Rare Met, Moscow 119017, Russia
[2] Univ Florida, Dept Mat Sci & Engn, Gainesville, FL 32611 USA
[3] Univ Florida, Dept Phys, Gainesville, FL 32611 USA
[4] USAF, Off Sci Res, Arlington, VA 22217 USA
来源：
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B | 2005年 / 23卷 / 01期
基金：
俄罗斯基础研究基金会; 美国国家科学基金会;
关键词：
D O I：
10.1116/1.1856476
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Electrical and magnetic properties, room temperature optical absorption bands, and 300 and 90 K microcathodo luminescence (MCL) bands were studied in heavily Mn and Co doped (1-5 at. %) bulk ZnO crystals. Optical absorption bands near 1.9 eV (Co) and 2 eV (Mn) and MCL bands near 1.84 eV (Co) and 1.89 eV (Mn) are found to be associated with transition metal (TM) ions. These bands are assigned to internal transitions between the levels of the substitutional TM ions. The temperature dependence of the resistivity of the ZnO showed activation energies of similar to35 meV in all cases and the electron mobilities were decreased relative to the undoped material. (C) 2005 American Vacuum Society.
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收藏
页码：274 / 279
页数：6
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