skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Photovoltaic cell with light trapping for enhanced efficiency

Abstract

The efficiency of a photovoltaic cell is enhanced by light trapping using Mie-scattering nanostructures. In one embodiment, an array of nanocylinders is formed on the front surface of a silicon film to enhance forward scattering into the film, and an array of nanocylinders is formed on the back surface to enhance backscattering so that more light is absorbed within the silicon film. In an alternate embodiment, a mirror layer is formed on the back surface of the silicon film to reflect light within the film back toward the front-surface nanocylinder array.

Inventors:
; ;
Issue Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1226233
Patent Number(s):
9,190,542
Application Number:
14/555,438
Assignee:
Sandia Corporation
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Patent
Resource Relation:
Patent File Date: 2014 Nov 26
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY

Citation Formats

Brener, Igal, Fofang, Nche Tumasang, and Luk, Ting S. Photovoltaic cell with light trapping for enhanced efficiency. United States: N. p., 2015. Web.
Brener, Igal, Fofang, Nche Tumasang, & Luk, Ting S. Photovoltaic cell with light trapping for enhanced efficiency. United States.
Brener, Igal, Fofang, Nche Tumasang, and Luk, Ting S. Thu . "Photovoltaic cell with light trapping for enhanced efficiency". United States. https://www.osti.gov/servlets/purl/1226233.
@article{osti_1226233,
title = {Photovoltaic cell with light trapping for enhanced efficiency},
author = {Brener, Igal and Fofang, Nche Tumasang and Luk, Ting S.},
abstractNote = {The efficiency of a photovoltaic cell is enhanced by light trapping using Mie-scattering nanostructures. In one embodiment, an array of nanocylinders is formed on the front surface of a silicon film to enhance forward scattering into the film, and an array of nanocylinders is formed on the back surface to enhance backscattering so that more light is absorbed within the silicon film. In an alternate embodiment, a mirror layer is formed on the back surface of the silicon film to reflect light within the film back toward the front-surface nanocylinder array.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2015},
month = {11}
}

Patent:

Save / Share:

Works referenced in this record:

Substrate-modified scattering properties of silicon nanostructures for solar energy applications
journal, January 2013


Broadband omnidirectional antireflection coating based on subwavelength surface Mie resonators
journal, January 2012

  • Spinelli, P.; Verschuuren, M. A.; Polman, A.
  • Nature Communications, Vol. 3, Issue 1
  • DOI: 10.1038/ncomms1691

Tailoring Directional Scattering through Magnetic and Electric Resonances in Subwavelength Silicon Nanodisks
journal, August 2013

  • Staude, Isabelle; Miroshnichenko, Andrey E.; Decker, Manuel
  • ACS Nano, Vol. 7, Issue 9, p. 7824-7832
  • DOI: 10.1021/nn402736f

Large-Area Free-Standing Ultrathin Single-Crystal Silicon as Processable Materials
journal, August 2013

  • Wang, Shuang; Weil, Benjamin D.; Li, Yanbin
  • Nano Letters, Vol. 13, Issue 9
  • DOI: 10.1021/nl402230v

Statistical ray optics
journal, July 1982

  • Yablonovitch, Eli
  • Journal of the Optical Society of America, Vol. 72, Issue 7, p. 899-907
  • DOI: 10.1364/JOSA.72.000899

Fundamental limit of nanophotonic light trapping in solar cells
journal, September 2010

  • Yu, Zongfu; Raman, Aaswath; Fan, Shanhui
  • Proceedings of the National Academy of Sciences, Vol. 107, Issue 41, p. 17491-17496
  • DOI: 10.1073/pnas.1008296107