Synthesis of europium-doped yttrium hydroxide and yttrium oxide nanosheets |
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| Authors: | Atsuya Towata Manickam Sivakumar Kyuichi Yasui Toru Tuziuti Teruyuki Kozuka Yasuo Iida |
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| Affiliation: | (1) National Institute of Advanced Industrial Science and Technology (AIST), 2266-98 Anagahora, Shimoshidami, Moriyama-ku, Nagoya 463-8560, Japan;(2) Bharathidasan Institute of Technology, Bharathidasan University, Trichy, 620 024, India |
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| 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 hexagonal-phase Y(OH)3. TEM images revealed that the nanosheets are square shaped (1 × 1 μm2) with a thickness of several tens of nanometers. In addition, it was found that cubic-phase Y2O3 nanosheets can be obtained by calcination of Y(OH)3 at 900 °C for 1 h. More importantly, the thus-prepared Y(OH)3:Eu and Y2O3:Eu nanosheet phosphors were found to exhibit a relatively high photoluminescence (PL) intensity. |
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