Visible diffraction from quasi-crystalline arrays of carbon nanotubes

Timothy P. Butler, Haider Butt, Timothy D. Wilkinson, Gehan A.J. Amaratunga

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


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.

Original languageBritish English
Pages (from-to)13452-13457
Number of pages6
Issue number32
StatePublished - 28 Aug 2015


Dive into the research topics of 'Visible diffraction from quasi-crystalline arrays of carbon nanotubes'. Together they form a unique fingerprint.

Cite this