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Dependence of Performance of Si Nanowire Solar Cells on Geometry of the Nanowires

Title
Dependence of Performance of Si Nanowire Solar Cells on Geometry of the Nanowires
Authors
Khan, FirozBaek, Seong-HoKim, Jae Hyun
DGIST Authors
Baek, Seong-HoKim, Jae Hyun
Issue Date
2014
Citation
The Scientific World Journal
Type
Article
Article Type
Article
Keywords
ChemistryNanowireNanowiresSiliconSilverSilver NitrateSolar Energy
ISSN
1537-744X
Abstract
The dependence of performance of silicon nanowires (SiNWs) solar cells on the growth condition of the SiNWs has been described. Metal-assisted electroless etching (MAE) technique has been used to grow SiNWs array. Different concentration of aqueous solution containing AgNO3 and HF for Ag deposition is used. The diameter and density of SiNWs are found to be dependent on concentration of solution used for Ag deposition. The diameter and density of SiNWs have been used to calculate the filling ratio of the SINWs arrays. The filling ratio is increased with increase in AgNO3 concentration, whereas it is decreased with increase in HF concentration. The minimum reflectance value achieved is 1% for SiNWs of length of 1.2 μm in the wavelength range of 300-1000 nm. The performance and diode parameters strongly depend on the geometry of SiNWs. The maximum short circuit current density achieved is 35.6 mA/cm2. The conversion efficiency of solar cell is 9.73% for SiNWs with length, diameter, and wire density of 1.2 μm, 75 nm, and 90 μm-2, respectively. © 2014 Firoz Khan et al.
URI
http://hdl.handle.net/20.500.11750/5280
DOI
10.1155/2014/358408
Publisher
HINDAWI PUBLISHING CORP
Related Researcher
Files:
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Collection:
Smart Textile Convergence Research Group1. Journal Articles


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