The study on the work function of CdZnTe with different surface states by synchrotron radiation photoemission spectroscopy

Gangqiang Zha; Wanqi Jie; Xuxu Bai; Tao Wang; Li Fu; Wenhua Zhang; Junfa Zhu; Faqiang Xu

doi:10.1063/1.3211325

The study on the work function of CdZnTe with different surface states by synchrotron radiation photoemission spectroscopy

Gangqiang Zha, Wanqi Jie, Xuxu Bai, Tao Wang, Li Fu, Wenhua Zhang, Junfa Zhu, Faqiang Xu

材料学院

科研成果: 期刊稿件 › 文章 › 同行评审

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摘要

The work functions of CdZnTe single crystal with different surface states were measured using synchrotron radiation photoemission spectroscopy. The work function of CdZnTe after mechanical and chemical polishing is higher than that of clean and ordered surface. The damage layer deduced by Ar ion sputtering increases the work function. The Te adatoms of the CdZnTe (111) B (2×2) reconstruction form the interface dipole and increase the work function. The effects of H₂ O adsorption and Au evaporation on the work function of CdZnTe were investigated. The relationships among work function, surface dipole, valence band bending, ionization energy, and electron affinity of CdZnTe with different surface states were discussed.

源语言	英语
文章编号	053714
期刊	Journal of Applied Physics
卷	106
期	5
DOI	https://doi.org/10.1063/1.3211325
出版状态	已出版 - 2009

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abstract = "The work functions of CdZnTe single crystal with different surface states were measured using synchrotron radiation photoemission spectroscopy. The work function of CdZnTe after mechanical and chemical polishing is higher than that of clean and ordered surface. The damage layer deduced by Ar ion sputtering increases the work function. The Te adatoms of the CdZnTe (111) B (2×2) reconstruction form the interface dipole and increase the work function. The effects of H2 O adsorption and Au evaporation on the work function of CdZnTe were investigated. The relationships among work function, surface dipole, valence band bending, ionization energy, and electron affinity of CdZnTe with different surface states were discussed.",

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AU - Zha, Gangqiang

AU - Jie, Wanqi

AU - Bai, Xuxu

AU - Wang, Tao

AU - Fu, Li

AU - Zhang, Wenhua

AU - Zhu, Junfa

AU - Xu, Faqiang

PY - 2009

Y1 - 2009

N2 - The work functions of CdZnTe single crystal with different surface states were measured using synchrotron radiation photoemission spectroscopy. The work function of CdZnTe after mechanical and chemical polishing is higher than that of clean and ordered surface. The damage layer deduced by Ar ion sputtering increases the work function. The Te adatoms of the CdZnTe (111) B (2×2) reconstruction form the interface dipole and increase the work function. The effects of H2 O adsorption and Au evaporation on the work function of CdZnTe were investigated. The relationships among work function, surface dipole, valence band bending, ionization energy, and electron affinity of CdZnTe with different surface states were discussed.

AB - The work functions of CdZnTe single crystal with different surface states were measured using synchrotron radiation photoemission spectroscopy. The work function of CdZnTe after mechanical and chemical polishing is higher than that of clean and ordered surface. The damage layer deduced by Ar ion sputtering increases the work function. The Te adatoms of the CdZnTe (111) B (2×2) reconstruction form the interface dipole and increase the work function. The effects of H2 O adsorption and Au evaporation on the work function of CdZnTe were investigated. The relationships among work function, surface dipole, valence band bending, ionization energy, and electron affinity of CdZnTe with different surface states were discussed.

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M3 - 文章

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JO - Journal of Applied Physics

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The study on the work function of CdZnTe with different surface states by synchrotron radiation photoemission spectroscopy

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