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arXiv 1209.5780cond-mat.mtrl-sci
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潜在太阳能吸收剂Cu3PSe4的电子和光学性质

Electronic and optical properties of potential solar absorber Cu3PSe4

D. H. Foster, V. Jieratum, R. Kykyneshi, D. A. Keszler, G. Schneider

摘要:

本文从理论上研究了半导体Cu_3PSe_4的电子和光学性质。我们还报道了Cu 3 PSe 4和Cu 3 PS4的漫反射光谱测量结果,表明前者的带隙为1.40 eV。混合泛函计算与此值吻合得很好,并揭示了带隙是直接的。计算结果表明,在可见光区,它的吸收光谱与GaAs相似,当λ < 630 nm时,α > 5 × 10^4 cm^-1。我们得出结论,Cu 3 PSe 4的光学性质在光伏太阳能吸收材料的期望范围内。

英文摘要:

We theoretically investigate the electronic and optical properties of semiconductor Cu3PSe4. We also report diffuse reflectance spectroscopy measurements for Cu3PSe4 and Cu3PS4, which indicate a band gap of 1.40 eV for the former.Hybrid functional calculations agree well with this value, and reveal that the band gap is direct. Calculations yield an optical absorption spectrum similar to GaAs in the visible region, with α > 5x10^4 cm^-1 for λ < 630 nm. We conclude that the optical properties of Cu3PSe4 are within the desired range for a photovoltaic solar absorber material.

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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