Density Functional Theory Calculation of Band Gap of Iron (II) disulfide and Tellurium
Keyword(s):
Band Gap
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In this work, the band gap of Iron(II) disulfide and Tellurium were computed using the density functional theory with different meta-GGA functionals. The results showed that the meta-GGA functional M06L gave the closest value of the band gap as 0.96 eV compared to the experimental value of 0.95 eV for Iron(II) disulfide while the meta-GGA functional BJ06 gave the closest value of the band gap as 0.339 eV compared to the experimental value of 0.335 eV for Tellurium. This study showed that the meta-GGA functionals M06L and BJ06 can effectively predict the band gap of Iron(II)disulfide and Tellurium. In general, the use of meta-GGA functionals can be extended to compute the band gap of other semiconductors.
2005 ◽
Vol 122
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pp. 064312
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2016 ◽
Vol 124
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pp. 1221-1225
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2016 ◽
Vol 18
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pp. 3322-3330
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2017 ◽
Vol 10
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pp. 171