Open AccessRapid thermal annealing treated spin–on doped antireflective radial junction Si nanopillar solar cell
Author(s) -
Bikash Dev Choudhury,
Srinivasan Anand
Publication year - 2017
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.25.00a200
Subject(s) - nanopillar , materials science , optoelectronics , solar cell , doping , solar cell efficiency , plasmonic solar cell , energy conversion efficiency , optics , polymer solar cell , nanotechnology , nanostructure , physics
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.