Rare earth ions doped silicate luminescent glass and preparation method thereof
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United States of America Patent
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Aug 16, 2016
Grant Date -
May 7, 2015
app pub date -
Apr 10, 2013
filing date -
Mar 5, 2013
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Abstract
A rare earth ions doped luminescent silicate glass is provided having the general formula of: 45SiO2-aLi2O-bMO-5Al2O3-3K2O-2P2O5:cEu2O3, wherein a is molar ratio of Li2O, b is molar ratio of MO and c is molar ratio of Eu2O3, wherein a+b=45, 25≦a≦35 and 0.025≦c≦0.50, and wherein MO is one or more of alkaline earth metal oxides. The luminescent glass can be prepared by simple progress, without pollution and at low cost. The resulting glass can be excited by UV LED chip and blue LED chip. Bright green light can be obtained by the sample under excitation of UV LED chip, while bright white light can be obtained under excitation of blue LED chip. The luminescent glass can be coupled with LED to obtain novel LED devices and provides potential applications in the field of semiconductor lighting.
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