Effects of sodium on electrical properties in Cu2ZnSnS4 single crystal

被引：113

作者：

Nagaoka, Akira ^{[1
]}

Miyake, Hideto ^{[2
]}

Taniyama, Tomoyasu ^{[3
]}

Kakimoto, Koichi ^{[4
]}

Nose, Yoshitaro ^{[5
]}

Scarpulla, Michael A. ^{[6
,7
]}

Yoshino, Kenji ^{[1
]}

机构：

[1] Miyazaki Univ, Dept Appl Phys & Elect Engn, Miyazaki 8892192, Japan

[2] Mie Univ, Dept Elect & Elect Engn, Tsu, Mie 5148507, Japan

[3] Tokyo Inst Technol, Mat & Struct Lab, Yokohama, Kanagawa 2268503, Japan

[4] Kyushu Univ, Appl Mech Res Inst, Kasuga, Fukuoka 8168580, Japan

[5] Kyoto Univ, Dept Mat Sci & Engn, Kyoto 6068501, Japan

[6] Univ Utah, Dept Mat Sci, Salt Lake City, UT 84112 USA

[7] Univ Utah, Dept Elect Engn, Salt Lake City, UT 84112 USA

来源：

APPLIED PHYSICS LETTERS | 2014年 / 104卷 / 15期

关键词：

BAND ACTIVATION-ENERGIES;

D O I：

10.1063/1.4871208

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have studied the effect of sodium on the electrical properties of Cu2ZnSnS4 (CZTS) single crystal by using temperature dependence of Hall effect measurement. The sodium substitution on the cation site in CZTS is observed from the increasing of unit-cell size by powder X-ray diffraction. Sodium increases the effective hole concentration and makes the thermal activation energy smaller. The degree of compensation decreases with sodium incorporation, thus the hole mobility is enhanced. We revealed that sodium is important dopant in CZTS to control the electrical properties. (C) 2014 AIP Publishing LLC.

引用

页数：4

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