Author/Authors :
Atsuya Towata، نويسنده , , Manickam Sivakumar، نويسنده , ,
Kyuichi Yasui، نويسنده , , Toru Tuziuti، نويسنده , , Teruyuki Kozuka، نويسنده , ,
Yasuo Iida، نويسنده ,
Abstract :
A new approach has been developed for the
preparation of Y(OH)3:Eu and Y2O3:Eu nanosheets using
the sol–gel method and hydrothermal reactions. XRD
patterns showed that the product was purely hexagonalphase
Y(OH)3. TEM images revealed that the nanosheets
are square shaped (1 9 1 lm2) with a thickness of several
tens of nanometers. In addition, it was found that cubicphase
Y2O3 nanosheets can be obtained by calcination of
Y(OH)3 at 900 C for 1 h. More importantly, the thusprepared
Y(OH)3:Eu and Y2O3:Eu nanosheet phosphors
were found to exhibit a relatively high photoluminescence
(PL) intensity.
