The photovoltaic potential of femtosecond-laser textured amorphous silicon

Meng Ju Sher, Kenneth Hammond, Lysander Christakis, Eric Mazur

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Scopus citations

Abstract

Femtosecond laser texturing of silicon yields micrometer scale surface roughness that reduces reflection and enhances light absorption. In this work, we study the potential of using this technique to improve efficiencies of amorphous silicon-based solar cells by laser texturing thin amorphous silicon films. We use a Ti:Sapphire femtosecond laser system to texture amorphous silicon, and we also study the effect of laser texturing the substrate before depositing amorphous silicon. We report on the material properties including surface morphology, light absorption, crystallinity, as well as solar cell efficiencies before and after laser texturing.

Original languageEnglish (US)
Title of host publicationLaser-Based Micro- and Nanopackaging and Assembly VII
DOIs
StatePublished - 2013
Externally publishedYes
EventLaser-Based Micro- and Nanopackaging and Assembly VII, LBMP 2013 - San Francisco, CA, United States
Duration: Feb 6 2013Feb 7 2013

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume8608
ISSN (Print)0277-786X

Conference

ConferenceLaser-Based Micro- and Nanopackaging and Assembly VII, LBMP 2013
Country/TerritoryUnited States
CitySan Francisco, CA
Period2/6/132/7/13

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Keywords

  • Amorphous silicon
  • Laser texturing
  • Light trapping
  • Photovoltaic

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