Please use this identifier to cite or link to this item: https://doi.org/31/315602
Title: A novel maskless approach towards aligned, density modulated and multi-junction ZnO nanowires for enhanced surface area and light trapping solar cells
Authors: Kevin, M.
Fou, Y.H.
Wong, A.S.W.
Ho, G.W. 
Issue Date: 15-Jul-2010
Source: Kevin, M.,Fou, Y.H.,Wong, A.S.W.,Ho, G.W. (2010-07-15). A novel maskless approach towards aligned, density modulated and multi-junction ZnO nanowires for enhanced surface area and light trapping solar cells. Nanotechnology 21 (31) : -. ScholarBank@NUS Repository. https://doi.org/31/315602
Abstract: A maskless method of employing polymer growth inhibitor layers is used to modulate the conflicting parameters of density and alignment of multi-junction nanowires via large-scale low temperature chemical route. This low temperature chemical route is shown to synthesize multi-junction nanostructures without compromising the crystal quality at the interfaces. The final morphology of optimized multi-junctions nanowire arrays can be demonstrated on various substrates due to substrate independence and low temperature processing. Here, we also fabricated devices based on density modulated multi-junction nanowires tuned to infiltrate nanoparticles. The fabrication of hierarchically structured nanowire/nanoparticles composites presents an advantageous structure, one that allows nanoparticles to provide large surface areas for dye adsorption, whilst the nanowires can enhance the light harvesting, electron transport rate, and also the mechanical properties of the films. This work can be of great scientific and commercial interest since the technique employed is of low temperature (<90 °C) and economical for large-scale solution processing, much valued in today's flexible display and photovoltaic industries. © 2010 IOP Publishing Ltd.
Source Title: Nanotechnology
URI: http://scholarbank.nus.edu.sg/handle/10635/54623
ISSN: 09574484
DOI: 31/315602
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