ZnO has received much attention over the past few years because
it has a wide range of properties that depend on doping, including a
range of conductivity from metallic to insulating (including n-type and
p-type conductivity), high transparency, piezoelectricity, wide-bandgap
semiconductivity, room-temperature ferromagnetism, and huge magnetooptic
and chemical-sensing effects. Without much effort, it can be grown
in many different nanoscale forms, thus allowing various novel devices
to be achieved. We review recent studies of ZnO nanostructures,
fabrication, novel device applications, and its potential as an electronacceptor
material in hybrid solar cells. Control of its rich defect
chemistry, which is critical for controlling properties but has not been
widely addressed in the context of novel applications, is also discussed.
ZnO has received much attention over the past few years becauseit has a wide range of properties that depend on doping, including arange of conductivity from metallic to insulating (including n-type andp-type conductivity), high transparency, piezoelectricity, wide-bandgapsemiconductivity, room-temperature ferromagnetism, and huge magnetoopticand chemical-sensing effects. Without much effort, it can be grownin many different nanoscale forms, thus allowing various novel devicesto be achieved. We review recent studies of ZnO nanostructures,fabrication, novel device applications, and its potential as an electronacceptormaterial in hybrid solar cells. Control of its rich defectchemistry, which is critical for controlling properties but has not beenwidely addressed in the context of novel applications, is also discussed.
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