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Semiconductor nanowires represent an important class of nanostructure building block for photovoltaics as well as direct solar-to-fuel application because of their high surface area, tunable bandgap and efficient charge transport and collection. In this talk, I will highlight several recent examples in this lab using semiconductor nanowires and their heterostructures for the purpose of solar energy...
We present a new optoelectronic tweezers device that produces electric fields parallel to the plane of the device. This device is capable of trapping and transporting p-type silicon nanowires at velocities of 20 mum/s.
We demonstrate, for the first time, the trapping and manipulation of individual Si nanowires by light-induced dielectrophoresis, or optoelectronic tweezers (OET). Trapping of single Si nanowires, with a diameter of 100 nm and length of 15 mum, is reported using OET with an optical power density of 100 W/cm2 . We show that OET can separate two adjacent Si nanowires and transport a single nanowire at...
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