Alternative sources of p-type conduction in acceptor-doped ZnO

被引:9
作者
Limpijumnong, Sukit [1 ,2 ]
Gordon, Luke [1 ,3 ]
Miao, Maosheng [1 ]
Janotti, Anderson [1 ]
Van de Walle, Chris G. [1 ]
机构
[1] Univ Calif Santa Barbara, Dept Mat, Santa Barbara, CA 93106 USA
[2] Suranaree Univ Technol, Sch Phys, Synchrotron Light Res Inst, Nakhon Ratchasima 30000, Thailand
[3] Univ Dublin, Trinity Coll, Dublin, Ireland
关键词
Hall effect; II-VI semiconductors; phosphorus; zinc compounds; MOLECULAR-BEAM EPITAXY; FILMS; SEMICONDUCTORS; DOPANT; ZNSE; GAN;
D O I
10.1063/1.3481069
中图分类号
O59 [应用物理学];
学科分类号
摘要
We report first-principles calculations and interface simulations for Zn3P2, a compound that may form during doping of ZnO with phosphorous. While P is a deep acceptor in ZnO and thus unable to produce p-type conductivity, we show that hole accumulation can occur at ZnO/Zn3P2 interfaces due to the unusual valence-band alignment between the two materials. This provides an explanation for the hole conductivity that has been observed in Hall measurements on phosphorous-doped ZnO. (C) 2010 American Institute of Physics. [doi:10.1063/1.3481069]
引用
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页数:3
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