Global to push GA events into
skip to main content

Title: Photovoltaic cell with nano-patterned substrate

A photovoltaic solar cell comprises a nano-patterned substrate layer. A plurality of nano-windows are etched into an intermediate substrate layer to form the nano-patterned substrate layer. The nano-patterned substrate layer is positioned between an n-type semiconductor layer composed of an n-type semiconductor material and a p-type semiconductor layer composed of a p-type semiconductor material. Semiconductor material accumulates in the plurality of nano-windows, causing a plurality of heterojunctions to form between the n-type semiconductor layer and the p-type semiconductor layer.
Inventors:
; ;
Issue Date:
OSTI Identifier:
1329302
Assignee:
Sandia Corporation (Albuquerque, NM) SNL-A
Patent Number(s):
9,472,702
Application Number:
13/681,157
Contract Number:
AC04-94AL85000
Resource Relation:
Patent File Date: 2012 Nov 19
Research Org:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 14 SOLAR ENERGY

Works referenced in this record:

Back-contact solar cells: a review
journal, January 2006
  • Kerschaver, Emmanuel Van; Beaucarne, Guy
  • Progress in Photovoltaics: Research and Applications, Vol. 14, Issue 2, p. 107-123
  • DOI: 10.1002/pip.657

Two- and three-dimensional folding of thin film single-crystalline silicon for photovoltaic power applications
journal, November 2009
  • Guo, X.; Li, H.; Yeop Ahn, B.
  • Proceedings of the National Academy of Sciences, Vol. 106, Issue 48, p. 20149-20154
  • DOI: 10.1073/pnas.0907390106

Effective absorption coefficient for graded band-gap semiconductors and the expected photocurrent density in solar cells
journal, January 2009