Optimization and Doping of Reduced Graphene Oxide-Silicon Solar Cells
Lachlan J Larsen, Cameron J Shearer, Amanda V Ellis, Joseph G Shapter
JOURNAL OF PHYSICAL CHEMISTRY C | AMER CHEMICAL SOC | Published : 2016
Here, we report on the optimization and chemical doping of reduced graphene oxide-silicon (rGO-Si) solar cells. Graphene oxide films were produced using a scalable vacuum filtration method and reduced via thermal annealing. The rGO films were used to make Schottky junction solar cells. The effect of rGO film thickness on solar cell performance was investigated, with short-circuit current densities and open-circuit voltages both tunable through the control of film thickness. Chemical doping of the rGO-Si solar cells, with varying annealed temperatures and thicknesses, was found to increase the cell power conversion efficiency by up to 220%, highlighting the importance of controlling the Fermi..View full abstract
This work was supported by the Australian Microscopy and Microanalysis Research Facility (AMMRF). This work was also performed in part at the Flinders University node of the Australian National Fabrication Facility (ANFF), a company established under the National Collaborative Research Infrastructure Strategy (NCRIS) to provide nano- and micro-fabrication facilities for Australia's researchers. L.L. would also like to thank the Australian Government for an APA scholarship.