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University Staff:
Dr. Jeffrey Cotter (Group Leader)
Prof. Martin Green
A/Prof. Christiana Honsberg
Prof. Stuart Wenham
Project Scientists and Technicians:
Dr. Ximing Dai
Jamie Green
Kate Fisher
Research Associates:
Dr. Wolfgang Honsberg
Dr. Keith McIntosh
Dr. Tom Puzzer
Dr. Alistair Sproul
Ted Szpitalak
Dr. Otwin Breitenstein
The Buried-Contact Solar Cell Group aims
to develop new solar cell structures and novel process technologies
specifically
for commercially
relevant silicon wafers. The group has a broad spectrum of research
and development activities that address the evolving nature of
commercial
silicon solar cells. The Group’s main activities are focused
on developing high-efficiency, thin-wafer Buried-Contact
solar cells, developing low-cost processing technologies and
related device designs, and transferring BC technology to industrial
and technical collaborators. Some of the group's work is highlighted
here. Double-sided Buried Contact (DSBC)solar
cell
The Double-sided Buried Contact (DSBC) solar cell
incorporates a high-efficiency rear surface design in the commercially
successful Laser-groove or Buried-contact cell design.If successful,
this structure will allow increased open-circuit voltage in thin-wafer
solar cells.
Interdigitated Back Buried
Contact (IBBC) solar cell
The Interdigitated Back Buried Contact (IBBC) design
locates all metal electrodes on the rear surface of the wafer and
enjoys reduced optical shading losses.
Laser Texturing for Multicrystalline
Silicon
A method of laser texturing has been developed as a possible solution
to the problem of texturing multicrystalline silicon.
The texture was created by scanning a pulsed laser beam across the
silicon surface.
Commercial
Stencil Printed Silicon Solar Cells
Screen- and stencil-print capabilities are being set-up at UNSW.
To achieve the fine, but thick lines needed to print contact pastes
into a shallow groove, we are developing stencil making capabilities
based on laser lithography.
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