The absorption of light is at the core of photovoltaic applications. For many nanostructure-based devices, an assessment of the absorption in the nanostructures is complicated by a thick, opaque substrate that prohibits transmission measurements. Here, we show how a single reflection measurement can be used for approximating the amount of light absorbed in vertical semiconductor nanowire arrays.
© 2013 Optical Society of America
Original Manuscript: January 30, 2013
Revised Manuscript: March 14, 2013
Manuscript Accepted: March 29, 2013
Published: April 25, 2013
Nicklas Anttu, Azhar Iqbal, Magnus Heurlin, Lars Samuelson, Magnus T. Borgström, Mats-Erik Pistol, and Arkady Yartsev, "Reflection measurements to reveal the absorption in nanowire arrays," Opt. Lett. 38, 1449-1451 (2013)