Publications (2)7.24 Total impact
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Article: Advances in the hyperlens
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ABSTRACT: As a superlens to overcome the well-known diffraction limit, the hyperlens has received much attention due to its super resolving power and magnifying capabilities. In this article, we review the recent developments, including theoretical and experimental studies on the hyperlens. We also discuss its limitations and potential. Keywordshyperlens-super resolution-microscopyChinese Science Bulletin 04/2012; 55(24):2618-2624. · 1.32 Impact Factor -
Article: 3D branched nanowire heterojunction photoelectrodes for high-efficiency solar water splitting and H2 generation.
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ABSTRACT: We report the fabrication of a three dimensional branched ZnO/Si heterojunction nanowire array by a two-step, wafer-scale, low-cost, solution etching/growth method and its use as photoelectrode in a photoelectrochemical cell for high efficiency solar powered water splitting. Specifically, we demonstrate that the branched nanowire heterojunction photoelectrode offers improved light absorption, increased photocurrent generation due to the effective charge separation in Si nanowire backbones and ZnO nanowire branching, and enhanced gas evolution kinetics because of the dramatically increased surface area and decreased radius of curvature. The branching nanowire heterostructures offer direct functional integration of different materials for high efficiency water photoelectrolysis and scalable photoelectrodes for clean hydrogen fuel generation.Nanoscale 03/2012; 4(5):1515-21. · 5.91 Impact Factor