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Enhancement of the Mie scattering effect using floatstone‐like TiO 2 spherical micropigment
Author(s) -
Shirosaki Tomohiro,
Tsuda Erika,
Horikawa Maki,
Nagaoka Shoji,
Ihara Hirotaka
Publication year - 2017
Publication title -
coloration technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.297
H-Index - 49
eISSN - 1478-4408
pISSN - 1472-3581
DOI - 10.1111/cote.12278
Subject(s) - rutile , mie scattering , materials science , diffuse reflection , specular reflection , scattering , light scattering , optics , solar cell , range (aeronautics) , titanium dioxide , diffuse reflectance infrared fourier transform , trapping , optoelectronics , chemical engineering , chemistry , photocatalysis , composite material , ecology , physics , engineering , biology , biochemistry , catalysis
Floatstone‐like TiO 2 microparticles with an efficiently enhanced Mie scattering effect were developed by thermofusing of rutile‐type TiO 2 submicron particles on the template core of poly(acrylate) microspheres. The light reflectance of the floatstone‐like TiO 2 microparticles was approximately 10% higher than that of the usual rutile‐type TiO 2 submicron particles in a wavelength range from 400 to 850 nm. The diffuse reflectance of the microparticles is enhanced by the formation of a floatstone‐like structure, whereas there is no difference in the specular reflectance of the particles. As an application of the floatstone‐like TiO 2 microparticles, the contribution of the particles to the light‐trapping effect of a solar cell was examined. The power conversion efficiency of the solar cell was enhanced by 22% with the introduction of a light‐scattering layer composed of the floatstone‐like TiO 2 microparticles.