Ionic-liquid-based synthesis of GaN nanoparticles.

GaN nanoparticles, 3-8 nm in diameter, are prepared by a microwave-assisted reaction of GaCl3 and KNH2 in ionic liquids. Instantaneously after the liquid-phase synthesis, the β-GaN nanoparticles are single-crystalline. The band gap is blue-shifted by 0.

YAlO:Ce nanoparticles made by ionic-liquid-assisted particle formation and LiCl-matrix-treated crystallization.

YAlO:Ce (YAG:Ce) nanoparticles were prepared by a two-step approach including ionic-liquid-assisted particle formation and LiCl-matrix-treated crystallization. Subsequent to particle formation in [MeBuN][N(SOCF)] as the ionic liquid (MeBuN: tributylmethylammonium; N(SOCF): bis(trifluoromethanesulfonyl)imide), the as-obtained amorphous precursor nanoparticles were crystallized in a LiCl matrix (600 °C, 1 h). The resulting YAG:Ce nanoparticles are well crystallized and exhibit a diameter of about 40 nm.