New synthesis technology for high efficiency Eu:YV1-xPxO4 nanophosphor

Highly efficient Eu:YV(1-x)P(x)O4 phosphor particles, similar to 200 nm in size, were synthesized using a new synthesis technique. The resulting particles exhibited higher photoluminescence efficiency than the micron-sized commercial sample, highlighting their high quality. To the best of our knowledge, such high efficiency has not been achieved without a surface and heat treatments. In addition to the photoluminescence spectrum, high resolution transmission electron microscopy (HRTEM) demonstrated perfect crystallinity with clear lattice fringes. (C)2010 The Ceramic Society of Japan. All rights reserved.