Synthesis of nano-structured powders of yttrium aluminum garnet doped with cerium and their application to form filled polymer optical composites
Journal Title: Хімія, фізика та технологія поверхні - Year 2017, Vol 8, Issue 3
Abstract
A method of thermochemical synthesis of powders of yttrium-aluminum garnet doped with cerium (yellow phosphor) for polymer material filling with the purpose of optical composites creation has been developed. As initial ingredients for the synthesis of Y2.95Ce0.05Al5O12; Y(NO3)3•6Н2О, Al(NO3)3•9Н2О, Се(NO3)3•6Н2О and two kinds of organic fuel, sucrose (C12H22O11) and carbamide (СO(NH2)2) with the addition of hexamethylenetetramine ((CH2)6N4) were used. The obtained samples were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA) and photoluminescence spectroscopy. It is found that primary particle diameter of YAG:Ce (average size of the coherent scattering) is 45 nm. Filled Polymer Composites (FPC) was formed by extrusion in the form of tape using as matrix a transparent high-density polyethylene. It has been established that the FPC luminesces with a maximum at the wavelength of 560 nm (yellow light) when excited at the wavelength of 465 nm (blue LED), and the total emission from the composite shows a bright white light.
Authors and Affiliations
O. V. Davydova, N. E. Drobyshevskaya, E. N. Poddenezhny, A. A. Boiko, M. V. Borysenko
Keywords
Related Articles
- EP ID EP251080
- DOI 10.15407/hftp08.03.289
- Views 100
- Downloads 0
Investigation of the interaction of caffeic acid with surface of nanosized cerium dioxide by methods of thermodesorption mass-spectrometry and IR-spectroscopy
The study of the thermochemical properties of caffeic acid and its surface complexes is important for the pharmaceutical and food industries, medicine and for development of technologies of heterogeneous catalytic pyroly...
Removal of uranyl cations from iron-containing solutions using compositesorbents based on polymer matrix
Some technologies of uranium recovery from minerals involve hydrochloric acid where cationic forms of uranyl ions dominate. The work is devoted to development and testing of sorbents for removal of uranium(VI) from liqui...
pH-sensitive materials based on silica with chemically immobilized methyl red: synthesis and protolytic properties
The purpose of this work is to study the possibility of creating hydrolytically and chemically stable pH-sensitive materials using silica as a carrier and an acid-base indicator that changes color when the pH of medium i...
Свойства модельных систем для биоремедиации воды на основе нанокремнезема
Показано, что присутствие смеси гидрофильного и гидрофобного нанокремнеземов повышает жизнедеятельность дрожжевых клеток в отсутствии питательной среды. Исследовано влияние дополнительного внесения минеральных веществ и...
Разные методы для описания морфологических и текстурных характеристик различных материалов
Целью данной работы было сравнение разных методов для описания текстурных характеристик разных материалов. Несколько путей могут быть избраны для описания морфологии и текстуры различных материалов: (i) адсорбция-десорбц...