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Issue 32, 2015
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Visible diffraction from quasi-crystalline arrays of carbon nanotubes

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Abstract

Large area arrays of vertically-aligned carbon nanotubes (VACNTs) are patterned in a quasi-crystalline Penrose tile arrangement through electron beam lithography definition of Ni catalyst dots and subsequent nanotube growth by plasma-enhanced chemical vapour deposition. When illuminated with a 532 nm laser beam high-quality and remarkable diffraction patterns are seen. The diffraction is well matched to theoretical calculations which assume apertures to be present at the location of the VACNTs for transmitted light. The results show that VACNTs act as diffractive elements in reflection and can be used as spatially phased arrays for producing tailored diffraction patterns.

Graphical abstract: Visible diffraction from quasi-crystalline arrays of carbon nanotubes

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Article information


Submitted
17 May 2015
Accepted
16 Jun 2015
First published
17 Jun 2015

Nanoscale, 2015,7, 13452-13457
Article type
Paper
Author version available

Visible diffraction from quasi-crystalline arrays of carbon nanotubes

T. P. Butler, H. Butt, T. D. Wilkinson and G. A. J. Amaratunga, Nanoscale, 2015, 7, 13452
DOI: 10.1039/C5NR03245H

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