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Inspired by the microstructures in brilliant white beetle scales, we prepared films composed of randomly distributed dielectric polystyrene (PS) microspheres by a coagulation method. It is found that the about 20-μm-thick microsphere films appear brilliant white, with up to 98% reflectivity in the visible and near-infrared (IR) range and excellent scattering properties close to the Lambertian reflector...
Large quantities of single-crystal silicon oxynitride (SiO x N y ) nanowires were synthesized on silicon substrate by a vapor–solid mechanism without using any catalyst. These single crystalline nanowires are 50 to 200nm in diameter, and a few hundreds of micrometers to several millimeters in length with high N concentration. The obtained SiO x N y nanowires are attractive...
By taking the optical imaging of the internal micro-nanostructure of white beetle scales, a multilayer aperiodic model is presented in this paper to understand the complex natural formation mechanism of bright whiteness of a kind of white color beetle. Based on the proposed model, optical simulations of visible light reflectivity are conducted correlated with the variation of layer number, layer thickness...
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