Header menu link for other important links
X
Investigation on production of highly textured Sb doped polycrystalline silicon using solid state Nd: YAG laser for photovoltaic application
, Makaram Singaperumal
Published in
2010
Volume: 7584
   
Abstract
Efficient doping of amorphous silicon(a-Si) is a key issue in the field of photovoltaic applications. In this paper an attempt has been made to produce a highly highly textured Sb doped a-Si. The a-Si were coated with Sb to a thickness of 200nm using vacuum evaporation method and treated with an Nd:YAG laser of 355nm with a threshold fluence of 460mJ/cm2 by overlapping the laser spots to 90% of its size. The samples are retretaed with a low laser fluence of 230mJ/cm2 respectively so as to crytsallize and diffuse the Sb on to the surface and to activate the dopant. The laser doped and subequently laser textured samples were analysed through Scanning Electron microscope (SEM), X-ray diffraction (XRD) & Atomic Force Microscope(AFM).The traces of SiSb in the XRD peak with improved surface roughness were observed on the laser doped samples. This represents that the dopants are highly diffused on the a-Si. © 2010 Copyright SPIE - The International Society for Optical Engineering.
About the journal
JournalProceedings of SPIE - The International Society for Optical Engineering
ISSN0277786X
Open AccessNo
Concepts (19)
  •  related image
    Amorphous silicon (a-si)
  •  related image
    Laser annealing
  •  related image
    Laser doping
  •  related image
    ND: YAG
  •  related image
    TEXTURIZATION
  •  related image
    Amorphous silicon
  •  related image
    Crystallization
  •  related image
    Doping (additives)
  •  related image
    Laser applications
  •  related image
    Microelectronics
  •  related image
    Microscopes
  •  related image
    Neodymium
  •  related image
    Polycrystalline materials
  •  related image
    Polysilicon
  •  related image
    Scanning electron microscopy
  •  related image
    Surface roughness
  •  related image
    Vacuum evaporation
  •  related image
    X ray diffraction
  •  related image
    Neodymium lasers