The prospective application of agraphene/MoS heterostructure in Si-HITsolar cells for higher efficiency
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Date
2020
Journal Title
Journal ISSN
Volume Title
Publisher
Nanoscale Advances
Abstract
The efficiency of a Si-HIT (heterojunction with intrinsic thin layer) solar cell based on a graphene/MoS2
heterostructure has been optimized by varying the various parameters of graphene (Gr) as a transparent
conducting electrode (TCE) and n-type molybdenum disulfide (n-MoS2) as an emitter layer. The
photovoltaic performance of a graphene/n-MoS2/a-Si:H/p-cSi/Au single facial HIT solar cell has been
studied using AFORS-HET v2.5 simulation software. A maximum output efficiency of 25.61% has been
achieved. The obtained results were compared with the results from a commercially available a-Si:H
layer and p-cSi wafer after simulation. Moreover, the dependence of the cell performance on changes in
the TCE and the back contact materials has also been studied. Finally, it has been demonstrated that the
graphene layer and n-MoS2 layer could act as a TCE and an efficient emitter layer, respectively, in a n-
MoS2/p-cSi based HIT solar cell.