%0 Journal Article
%T A Highly Luminous LiCaPO<sub>4</sub>:Eu<sup>2+</sup> Phosphor Synthesized by a Solution Method Employing a Water-Soluble Phosphate Ester
%A Minsung Kim
%A Makoto Kobayashi
%A Hideki Kato
%A Masato Kakihana
%J Optics and Photonics Journal
%P 13-18
%@ 2160-889X
%D 2013
%I Scientific Research Publishing
%R 10.4236/opj.2013.36A003
%X <p class=\"MsoNormal\">
	<span lang=\"EN-US\"><span style=\"font-family:Verdana;\">A LiCaPO</span><sub><span style=\"font-family:Verdana;\">4</span></sub><span style=\"font-family:Verdana;\">:Eu</span><sup><span style=\"font-family:Verdana;\">2+</span></sup><span style=\"font-family:Verdana;\"> phosphor with high
photoluminescence was synthesized using a polymerizable complex (PC) method
employing a water-soluble polyethylene glycol-conjugated phosphate ester
(PEG-P). PEG-P could be obtained from a reaction among polyethylene glycol 300,
phosphorus pentoxide, and pyrophosphoric acid. The PEG-P prepared was stable in
an aqueous condition. A transparent solution and gel were obtained when the
PEG-P was used as a source of P during the PC method, whereas the use of H</span><sub><span style=\"font-family:Verdana;\">3</span></sub><span style=\"font-family:Verdana;\">PO</span><sub><span style=\"font-family:Verdana;\">4</span></sub><span style=\"font-family:Verdana;\"> caused an undesirable precipitate. The LiCaPO</span><sub><span style=\"font-family:Verdana;\">4</span></sub><span style=\"font-family:Verdana;\">:Eu</span><sup><span style=\"font-family:Verdana;\">2+</span></sup><span style=\"font-family:Verdana;\"> obtained
via the PC method employing the PEG-P showed higher emission intensity than those
synthesized by a solid state reaction method and the PC method employing H</span><sub><span style=\"font-family:Verdana;\">3</span></sub><span style=\"font-family:Verdana;\">PO</span><sub><span style=\"font-family:Verdana;\">4</span></sub><span style=\"font-family:Verdana;\">.
The high luminescence properties of the sample synthesized using the PEG-P may
be attributed to high homogeneity of constituents in the sample.</span></span> 
</p>
%K Solution Method
%K Stable Phosphate Ester
%K Homogeneity
%K LiCaPO&lt
%K sub&gt
%K 4&lt
%K /sub&gt
%K :Eu&lt
%K sup&gt
%K 2+&lt
%K /sup&gt
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=38498