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Proceedings Paper

Single crystal semiconductor micropillar and nanowire on amorphous substrates for low cost solar hydrogen generation
Author(s): V. J. Logeeswaran; Aaron M. Katzenmeyer; Min-Ki Kwon; Ja-Yeon Kim; M. Saif Islam
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Paper Abstract

We report a novel method to fabricating single crystal and highly oriented 1-D Silicon micropillars and nanowires and then transferring them to coat a target surface of any topology using an innovative harvest/lift-off process. This method enables highly crystalline micro- and nano- pillars of different materials with diverse bandgaps and physical properties to be fabricated on appropriate mother substrates and transferred to form multilayered 3D stacks for multifunctional devices. This approach not only ensures the incorporation of any kind of material (with the best device characteristics) on a single substrate facilitating substrate-free device fabrications on any topology, but also allows the repeated use of a mother substrate for continual production of new devices. This capability of fabricating substrate-less devices will offer a universal platform for material integration and allow solar active devices to be coated on various surface topologies that would be suitable for solar hydrogen generation.

Paper Details

Date Published: 20 August 2009
PDF: 7 pages
Proc. SPIE 7408, Solar Hydrogen and Nanotechnology IV, 74080U (20 August 2009); doi: 10.1117/12.828744
Show Author Affiliations
V. J. Logeeswaran, Univ. of California, Davis (United States)
Aaron M. Katzenmeyer, Univ. of California, Davis (United States)
Min-Ki Kwon, Univ. of California, Davis (United States)
Ja-Yeon Kim, Univ. of California, Davis (United States)
M. Saif Islam, Univ. of California, Davis (United States)

Published in SPIE Proceedings Vol. 7408:
Solar Hydrogen and Nanotechnology IV
Frank E. Osterloh, Editor(s)

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