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Article overview
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Broadband perfect light trapping in the thinnest monolayer graphene-MoS$_{2}$ photovoltaic cell | Yun-Beng Wu
; Weng Yang
; Tong-Biao Wang
; Xin-Hua Deng
; Jiang-Tao Liu
; | Date: |
2 Aug 2015 | Abstract: | The light absorption of a monolayer graphene-molybdenum disulfide
photovoltaic (GM-PV) cell in a wedge-shaped microcavity with a
spectrum-splitting structure is investigated theoretically. The GM-PV cell,
which is three times thinner than the traditional photovoltaic cell, exhibits
up to 98\% light absorptivity in a wide wavelength range. This rate exceeds the
fundamental limit of nanophotonic light trapping in solar cells. The effects of
defect layer thickness, GM-PV cell position in the microcavity, incident angle,
and lens aberration on the light absorption rate of the GM-PV cell is explored.
Regardless of errors, the GM-PV cell can still achieve at least 90\% light
absorptivity with the current technology. Our proposal provides different
methods to design light-trapping structures and apply spectrum-splitting
systems. | Source: | arXiv, 1508.0223 | Services: | Forum | Review | PDF | Favorites |
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