Enhanced reflection from arrays of silicon based inverted nanocones.

Authors :: Butt, Haider
Dai, Qing
Rajasekharan, Ranjith
Wilkinson, Timothy D.
Amaratunga, Gehan A. J.
Source :: Applied Physics Letters. 9/26/2011, Vol. 99 Issue 13, p133105. 3p. 1 Black and White Photograph, 2 Graphs.
Publication Year :: 2011
Abstract: We report enhanced reflection displayed by arrays of silicon based inverted nanocones. Theoretical studies suggest that such arrays display enhanced reflection and photonic band gaps within the optical and near infrared regions. Measured results show three to four fold enhancement in reflection and agree well with calculations. Such arrays can be used to enhance infrared reflection in photovoltaic devices which mostly contribute towards heating. [ABSTRACT FROM AUTHOR]