Influences of InGaP Conical Frustum Nanostructures on the Characteristics of GaAs Solar Cells

Conical frustums with quasihexagonal nanostructures are fabricated on an InGaP window layer of single junction GaAs solar cells using a polystyrene nanosphere lithography technique followed by anisotropic etching processes. The optical and photovoltaic characteristics of the conical frustum nanostru...

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Bibliographic Details
Published in:Journal of nanomaterials 2013-01, Vol.2013 (2013), p.1-6
Main Authors: Lee, Jaejin, Kim, Kangho, Kim, Youngjo, Dinh Lam, Nguyen
Format: Article
Language:English
Subjects:
Annealing
Frustums
Gallium arsenide
Gallium arsenides
High temperature
Nanocomposites
Nanomaterials
Nanoparticles
Nanostructure
Photovoltaic cells
Semiconductors
Solar cells
Solar energy
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Summary:Conical frustums with quasihexagonal nanostructures are fabricated on an InGaP window layer of single junction GaAs solar cells using a polystyrene nanosphere lithography technique followed by anisotropic etching processes. The optical and photovoltaic characteristics of the conical frustum nanostructured solar cells are investigated. Reflectance of the conical frustum nanostructured solar cells is significantly reduced in a wide range of wavelengths compared to that of the planar sample. The measured reflectance reduction is attributed to the gradual change in the refractive index of the InGaP conical frustum window layer. An increase of 15.2% in the power conversion efficiency has been achieved in the fabricated cell with an optimized conical frustum nanostructure compared to that of the planar cell.
ISSN:1687-4110
1687-4129
DOI:10.1155/2013/785359