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Abstract: This work
outlines an effort to design and optimize a complete top contact system for use with
photovoltaic cells. The system will incorporate a transparent conductor and a two-stage
antireflective treatment. To create an economically sustainable design, choice of
materials is restricted to those that do not require large amounts of rare-earth
elements - specifically indium, which i... read mores the main ingredient in the current
industry-standard transparent conductor, indium-tin-oxide. The proposed system will use
niobium-doped titanium dioxide (TNO) as the conductor combined with a continuously
graded antireflective coating composed of titanium dioxide and silicon dioxide. To
further suppress reflection of incident light, the silicon dioxide surface will be
etched to form a nano-scale "moth's eye" pattern. This report details the first stage of
the research project which focuses on material characterization and conductor
fabrication.
Thesis (M.S.)--Tufts University,
2012.
Submitted to the Dept. of Electrical
Engineering.
Advisor: Thomas
Vandervelde.
Committee: Robert White, and Aleksandar
Stankovic.
Keyword: Electrical
engineering.read less
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