Ryan Aguinaldo

Publications (2)7.24 Total impact

• Source

  Available from: circuit.ucsd.edu

  Article: Advances in the hyperlens

  ChangBao Ma, Ryan Aguinaldo, ZhaoWei Liu
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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-microscopy
  Chinese Science Bulletin 04/2012; 55(24):2618-2624. · 1.32 Impact Factor
• Source

  Available from: Deli Wang

  Article: 3D branched nanowire heterojunction photoelectrodes for high-efficiency solar water splitting and H2 generation.

  Ke Sun, Yi Jing, Chun Li, Xiaofeng Zhang, Ryan Aguinaldo, Alireza Kargar, Kristian Madsen, Khaleda Banu, Yuchun Zhou, Yoshio Bando, Zhaowei Liu, Deli Wang
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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