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Optical properties of zinc oxide nanoparticles embedded in dielectric medium for UV region: numerical simulation
Göteborg University.
Göteborg University.ORCID iD: 0000-0001-6235-7038
2006 (English)In: Journal of nanoparticle research, ISSN 1388-0764, E-ISSN 1572-896X, Vol. 8, no 1, 79-97 p.Article in journal (Refereed) Published
Abstract [en]

   Zinc oxide nano-particles have been used by cosmetic industry for many years because they are extensively used as agents to attenuate (absorb and/or scatter) the ultraviolet radiation. In the most UV-attenuating agent is formulated in which the metal oxide nano-particles are incorporated into liquid media or polymer media are manufactured, such as sunscreens and skin care cosmetics. In this paper we study the wavelength dependence on the particle size (r eff = 10–100 nm) by solving the scattering problem of hexagonal ZnO particle for different shapes (plate, equal ratio, column) using the discrete dipole approximation method to find the absorption, scattering, and extinction efficiencies for the UV region (30–400 nm). A new modified hexagonal shape is introduced to determine the scattering problem and it is assumed in this study that the wavelength is comparable to the particle size. From these results, we conclude that the optimum particle radius to block the UV radiation is between r eff = 40–80 nm.

Place, publisher, year, edition, pages
2006. Vol. 8, no 1, 79-97 p.
National Category
Engineering and Technology
URN: urn:nbn:se:liu:diva-36253DOI: 10.1007/s11051-005-8024-2Local ID: 30745OAI: diva2:257101
Available from: 2009-10-10 Created: 2009-10-10 Last updated: 2014-01-15

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Willander, Magnus
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