Journal
JOURNAL OF APPLIED PHYSICS
Volume 114, Issue 7, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4818958
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Funding
- Natural Sciences and Engineering Research Council of Canada
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Poisson's equation is solved for a radial pn junction nanowire (NW) with surface depletion. This resulted in a model capable of giving radial energy band and electric field profiles for any arbitrary core/shell doping density, core/shell dimensions, and surface state density. Specific cases were analyzed to extract pertinent underlying physics, while the relationship between NW specifications and the depletion of the NW were examined to optimize the built-in potential across the junction. Additionally, the model results were compared with experimental results in literature to good agreement. Finally, an optimum device design is proposed to satisfy material, optical, and electrostatic constraints in high efficiency NW solar cells. (C) 2013 AIP Publishing LLC.
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