Effects of sodium on electrical properties in Cu2ZnSnS 4 single crystal

Akira Nagaoka; Hideto Miyake; Tomoyasu Taniyama; Koichi Kakimoto; Yoshitaro Nose; Michael A. Scarpulla; Kenji Yoshino

doi:10.1063/1.4871208

Effects of sodium on electrical properties in Cu₂ZnSnS ₄ single crystal

Akira Nagaoka, Hideto Miyake, Tomoyasu Taniyama, Koichi Kakimoto, Yoshitaro Nose, Michael A. Scarpulla, Kenji Yoshino

Division of Renewable Energy Dynamics

Research output: Contribution to journal › Article › peer-review

109 Citations (Scopus)

Abstract

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.

Original language	English
Article number	152101
Journal	Applied Physics Letters
Volume	104
Issue number	15
DOIs	https://doi.org/10.1063/1.4871208
Publication status	Published - Apr 14 2014

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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10.1063/1.4871208

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abstract = "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.",

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AU - Nagaoka, Akira

AU - Miyake, Hideto

AU - Taniyama, Tomoyasu

AU - Kakimoto, Koichi

AU - Nose, Yoshitaro

AU - Scarpulla, Michael A.

AU - Yoshino, Kenji

PY - 2014/4/14

Y1 - 2014/4/14

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AB - 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.

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Effects of sodium on electrical properties in Cu₂ZnSnS ₄ single crystal

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