Synthesis of nanophotocrystals via novel green process using water : Solubilization of non-water-soluble metals into water based upon complexation

本研究开发了新型水溶性化合物作为光功能陶瓷的前驱体，并以水为溶剂合成了高性能的光功能陶瓷。我们通过化学络合技术成功开发了新的Si、Nb和Ta水溶性化合物。我们新开发的使用这些化合物的水溶液方法使我们不仅能够制备具有比通过常规方法合成的材料更上级的性能的材料，而且能够提供高度形态控制的颗粒。本研究的另一个重要成果是建立了一种新的水溶性硅化合物平行合成方案，这使得快速找到高亮度荧光粉的最佳组成成为可能。

In this study we developed new water-soluble compounds as precursors for photo-functional ceramics and synthesized high-performanced photoceramics using water as a processing solvent. We succeeded in development of new Si, Nb, and Ta water-soluble compounds through chemical complexation techniques. Our newly developed aqueous solution method using these compounds enabled us not only to prepare materials having properties superior to those for materials synthesized by the conventional method but also to provide highly morphologically controlled particles. Another important achievement in this study includes establishment of the new parallel synthetic scheme using water-soluble Si compound, which made possible to find quickly optimal compositions of high-brightness phosphors.