Rapid thermal annealing treated spin-on doped antireflective radial junction Si nanopillar solar cell

Radial junction nanopillar Si solar cells are interesting for cost effective efficiency improvement. Here, we address a convenient top-down fabrication of Si nanopillar solar cells using spin-on doping and rapid thermal annealing (RTA) for conformal PN junction formation. Broadband suppressed reflec...

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Bibliographic Details
Published inOptics express Vol. 25; no. 8; pp. A200 - A207
Main Authors Choudhury, Bikash Dev, Anand, Srinivasan
Format Journal Article
LanguageEnglish
Published United States 17.04.2017
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Summary:Radial junction nanopillar Si solar cells are interesting for cost effective efficiency improvement. Here, we address a convenient top-down fabrication of Si nanopillar solar cells using spin-on doping and rapid thermal annealing (RTA) for conformal PN junction formation. Broadband suppressed reflection as low as an average of 5% in the 300-1100 nm wavelength range and un-optimized cell efficiency of 7.3% are achieved. The solar cell performance can be improved by optimization of spin-on-doping and suitable surface passivation. Overall, the all RTA processed, spin-on doped nanopillar radial junction solar cell shows a very promising route for low cost and high efficiency thin film solar cell perspectives.
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ISSN:1094-4087
1094-4087
DOI:10.1364/OE.25.00A200