Guoping Luo, Yingmei Bian, Ruifeng Wu, Guoxia Lai, Xiangfu Xu, Weiwei Zhang, Xingyuan Chen. First principles study of the electronic structure and photovoltaic properties of β-CuGaO2 with MBJ + U approach[J]. Journal of Semiconductors, 2020, 41(10): 102102
- Journal of Semiconductors
- Vol. 41, Issue 10, 102102 (2020)
Fig. 1. (Color online) The structure of the β -CuGaO2.
Fig. 2. (Color online) The band gap values of β -CuGaO2 by GGA + U and MBJ + U method.
Fig. 3. (Color online) The band structure and DOS of β -CuGaO2.
Fig. 4. (Color online) The absorption coefficient of β -CuGaO2 and AM 1.5 solar spectral irradiance in the 300–1000 nm wavelength range.
Fig. 5. (Color online) The optical absorption properties of β -CuGaO2.
Fig. 6. (Color online) The SLME η as a function of film thickness for ideal β -CuGaO2 solar cell.
Fig. 7. (Color online) The current density–voltage (J –V ) curves of the ideal β -CuGaO2 solar cell with a thickness of 3 μ m.
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Table 1. The photovoltaic parameters of β -CuGaO2 and CdTe solar cells obtained by SLME method, the experimentally parameters for CdTe solar cells are also included for comparison.
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