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The absorber layer of CZTS solar cell is a compound semiconductor which has favourable optical and electrical properties. Researchers are highly interest to investigate the CZTS solar cells for its earth abundant, non-toxic and low cost feature. Consequently, the absorber layer of CIGS is replaced to CZTS absorber layer. In this research work, the potentiality of Molybdenum Sulphide (MoS2) as buffer...
The III-V compound semiconductor based multi-junction tandem solar cell has ultra-high efficiency and better cell stability. In this paper, a new type of AlGaAs/GaInAsP 2-J tandem solar cell has been introduced and designed by bandgrading thereby obtaining a set of descending layers having bandgap from 2.09eV–0.84eV and grown over a Ge substrate. For matching the currents between subcells, a tunnel...
In this paper, InGaN/InN/InGaN-based double channel HEMTs are investigated by numerical simulation from the self-consistent solution of Schrodinger-Poisson systems. The influences of polarization charges and quantum effects are incorporated into this model. The simulation model predicts the two-dimensional electrical characteristics (internal electric fields and distribution of charges in the channel)...
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