20 November 2012 Antireflective structures fabricated from silica nanoparticles with regular arrangement
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Abstract
Novel antireflective surfaces with silica particles arranged regularly and tightly are proposed and fabricated by self assemble silica nanoparticle through electrostatic attraction between charged colloidal particles and charged polyelectrolyte multilayer. Due to regularly arrangement of the particles, the nanoparticle coatings, as homogeneous porous layers with uniform distribution, show high-quality and uniform antireflective capability in each region on the substrate. It has been sufficiently demonstrated in our experiments. Furthermore, the relations among the antireflective capability, average size of nanoparticles, and incident angle of the irradiated light are calculated by finite-difference time-domain method. It is demonstrated that the nanostructure coatings with particles of 100 nm size possess the excellently suitable performance for reflection/transmission with respect to visible-light region. From the results, the fabricated anti-reflective nanostructures have great potential to improve the efficiency of optoelectronic devices such as a photo-detector and solar cells.
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Yukun Zhang, Yan Liu, Hui Pang, Lifang Shi, Xiaochun Dong, Qiling Deng, Jinglei Du, Shaoyun Yin, Chunlei Du, "Antireflective structures fabricated from silica nanoparticles with regular arrangement", Proc. SPIE 8564, Nanophotonics and Micro/Nano Optics, 85641I (20 November 2012); doi: 10.1117/12.999475; https://doi.org/10.1117/12.999475
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