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25 October 2018 Nanowire-based metamaterials electrodes for extremely fast charge collection
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Metallic nanorod metamaterials, arrays of vertically aligned nanorods embedded in an alumina matrix (diameter ~80 nm, length 100-250 nm, period ~113 nm), have recently emerged as a flexible platform for applications in photonics, optoelectronics and sensing. The optical constants for these nanostructured materials are directly associated with their crystallinity. Controlling the crystallinity of these metamaterials in a fast manner has presented a new challenge. Here we show a laser annealing with a pulsed Nd:YAG laser (λ = 532 nm, FWHM 15 ns) to rapidly change the crystallinity of the metallic nanorods. The small column X-Ray diffraction characterization shows that not only the crystallinity of the metallic nanorods is changed, but also that evaporation of the metal occurs with laser annealing.
© (2018) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Yuyi Feng, Paul Kim, Clayton A. Nemitz, Kwang-Dae Kim, Yoonseok Park, Karl Leo, James Dorman, Jonas Weickert, Yongtian Wang, and Lukas Schmidt-Mende "Nanowire-based metamaterials electrodes for extremely fast charge collection", Proc. SPIE 10824, Plasmonics III, 1082409 (25 October 2018);

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