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arXiv 1210.0641cond-mat.mtrl-sciphysics.comp-ph
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Ti_{1-x} Cd_xO2的电子和光学性质:第一性原理预测

Electronic and optical properties of Ti_{1-x}Cd_xO2: A first-principles prediction

X. D. Zhang, M. L. Guo, C. L. Liu, W. X. Li, X. F. Hong

摘要:

采用第一性原理研究了金红石型Ti 1-xCdxO 2光催化材料的电学和光学性质。结果表明,Cd的掺入导致了价带顶p态的增强和带隙的减小。随着Cd浓度的增加,Cdp和Op之间的光学跃迁逐渐增强,并向高能区移动。此外,在可见光范围内,Ti 1-xCdxO 2的光吸收增加。

英文摘要:

A first-principles study has been carried out to evaluate the electronic and optical properties of rutile Ti1-xCdxO2 as a possible photocatalytic material. It was found that Cd incorporation lead to the enhancement of p states in the top of valence band and the decrease of band gap. The optical transition between Cd p and O p enhances gradually and shifts to high energy range with increasing Cd concentration. Furthermore, optical absorption of Ti1-xCdxO2 increases in the visible range.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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