Two-dimensional layered semiconductor/graphene heterostructures for solar photovoltaic applications.

@article{Shanmugam2014TwodimensionalLS,
  title={Two-dimensional layered semiconductor/graphene heterostructures for solar photovoltaic applications.},
  author={Mariyappan Shanmugam and Robin B. Jacobs-Gedrim and Eui Sang Song and Bin Yu},
  journal={Nanoscale},
  year={2014},
  volume={6 21},
  pages={
          12682-9
        }
}
Schottky barriers formed by graphene (monolayer, bilayer, and multilayer) on 2D layered semiconductor tungsten disulfide (WS2) nanosheets are explored for solar energy harvesting. The characteristics of the graphene-WS2 Schottky junction vary significantly with the number of graphene layers on WS2, resulting in differences in solar cell performance. Compared with monolayer or stacked bilayer graphene, multilayer graphene helps in achieving improved solar cell performance due to superior… 
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References

SHOWING 1-10 OF 41 REFERENCES
Extraordinary sunlight absorption and one nanometer thick photovoltaics using two-dimensional monolayer materials.
TLDR
This work shows that two-dimensional monolayer materials hold yet untapped potential for solar energy absorption and conversion at the nanoscale and demonstrates that 1 nm thick active layers can attain power conversion efficiencies of up to ~1%, corresponding to approximately 1-3 orders of magnitude higher power densities than the best existing ultrathin solar cells.
Highly flexible and transparent multilayer MoS2 transistors with graphene electrodes.
TLDR
The high stability in electronic performance of the devices upon bending up to ±2.2 mm in compressive and tensile modes, and the ability to recover electrical properties after degradation upon annealing, reveal the efficacy of using 2D materials for creating highly flexible and transparent devices.
Layered graphene/quantum dots for photovoltaic devices.
TLDR
A novel layered nanofilm of graphene/QDs was constructed from all aqueous solutions to fabricate a photovoltaic device using graphene as acceptor, demonstrating the best performance (IPCE of 16% and photoresponse of 1.08 mAcm 2 under light illumination of 100 mWcm ) in all reported carbon/QD solar cells.
Transistors with chemically synthesized layered semiconductor WS2 exhibiting 105 room temperature modulation and ambipolar behavior
We report the realization of field-effect transistors (FETs) made with chemically synthesized multilayer crystal semiconductor WS2. The Schottky-barrier FETs demonstrate ambipolar behavior and a high…
Vertical field-effect transistor based on graphene-WS2 heterostructures for flexible and transparent electronics.
TLDR
A new generation of field-effect vertical tunnelling transistors where two-dimensional tungsten disulphide serves as an atomically thin barrier between two layers of either mechanically exfoliated or chemical vapour deposition-grown graphene are described.
Layered semiconductor molybdenum disulfide nanomembrane based Schottky-barrier solar cells.
We demonstrate Schottky-barrier solar cells employing a stack of layer-structured semiconductor molybdenum disulfide (MoS(2)) nanomembranes, synthesized by the chemical-vapor-deposition method, as…
Electronics and optoelectronics of two-dimensional transition metal dichalcogenides.
TLDR
This work reviews the historical development of Transition metal dichalcogenides, methods for preparing atomically thin layers, their electronic and optical properties, and prospects for future advances in electronics and optoelectronics.
Few-layer MoS2: a promising layered semiconductor.
TLDR
This review attempts to provide an overview of the research relevant to the structural and physical properties, fabrication methods, and electronic devices of few-layer MoS2.
Photovoltaic Heterojunctions of Fullerenes with MoS2 and WS2 Monolayers.
TLDR
The results suggest that the C60/WS2 system is highly promising for excitonic solar cells and the built-in potential in the former case is too small to effectively drive electron-hole separation across the interface.
Physics and chemistry of CdTe/CdS thin film heterojunction photovoltaic devices: fundamental and critical aspects
Among the armoury of photovoltaic materials, thin film heterojunction photovoltaics continue to be a promising candidate for solar energy conversion delivering a vast scope in terms of device design…
...
1
2
3
4
5
...