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Summary: Oxygen-rich regime
O
plasma
Tinsource
SnO2 layer
substrate
Tin Oxide (SnO2) is widely used as a "transparent conductor": its
conductivity is almost as high as a metal, but it is simultaneously
transparent. The Interdisciplinary Research Group on Oxides as
Semiconductors is applying Molecular Beam Epitaxy, a very high-
quality growth technique, to produce layers of SnO2 that will have
applications such as solid-state light emitters or transistors.
A highly surprising behavior has been found: providing more Sn leads
to a decline in the growth rate of the SnO2! The researchers have been
able to attribute phenomenon to the formation of volatile sub-oxides
such as SnO. This insight now enables growth of SnO2 films of the
highest crystalline perfection, with controlled impurity incorporation.
Tin Oxide (SnO2) is widely used as a "transparent conductor": its
conductivity is almost as high as a metal, but it is simultaneously
transparent. The Interdisciplinary Research Group on Oxides as
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