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- W2988657835 abstract "Abstract The earth abundant and non-toxic solar absorber material kesterite Cu 2 ZnSn(S/Se) 4 has been studied to achieve high power conversion efficiency beyond various limitations, such as secondary phases, antisite defects, band gap adjustment and microstructure. To alleviate these hurdles, we employed screening based approach to find suitable cationic dopant that can promote the current density and the theoretical maximum upper limit of the energy conversion efficiency (P(%)) of CZTS/Se solar devices. For this task, the hybrid functional (Heyd, Scuseria and Ernzerhof, HSE06) were used to study the electronic and optical properties of cation (Al, Sb, Ga, Ba) doped CZTS/Se. Our in-depth investigation reveals that the Sb atom is suitable dopant of CZTS/CZTSe and also it has comparable bulk modulus as of pure material. The optical absorption coefficient of Sb doped CZTS/Se is considerably larger than the pure materials because of easy formation of visible range exciton due to the presence of defect state below the Fermi level, which leads to an increase in the current density and P(%). Our results demonstrate that the lower formation energy, preferable energy gap and excellent optical absorption of the Sb doped CZTS/Se make it potential component for relatively high efficient solar cells." @default.
- W2988657835 created "2019-11-22" @default.
- W2988657835 creator A5008388762 @default.
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- W2988657835 date "2019-11-05" @default.
- W2988657835 modified "2023-10-16" @default.
- W2988657835 title "Screening of suitable cationic dopants for solar absorber material CZTS/Se: A first principles study" @default.
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- W2988657835 doi "https://doi.org/10.1038/s41598-019-52410-3" @default.
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- W2988657835 hasPublicationYear "2019" @default.
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