Synthesis of Oleylamine Modified LaF3:Er,Yb Nanocrystals via Thermal Decomposition of Lanthanide Trifluoroacetate Precursors
Oleylamine modified LaF3:5％Er,20％Yb nanocrystals (NCs) have been prepared via thermal decomposition of lanthanide trifluoroacetate in oleylamine and 1-octadecene mixed high boiling-point solvents, which have excellent dispersibility in non-polar organic solvents such as toluene、cyclehexane and chloroform.The resulting NCs show strong emission around the 1550 nm telecommunication window when excited at 974 nm at room temperature, the average photoluminescence lifetime was measured to be 92.4μs using a double exponential decay functions fit, hence photoluminescence quantum yield is estimated about 1％ which is two orders of magnitude larger than common erbium organic cage complexes. NCs synthesized by this method eliminate O-H effect, and can be incorporated with some low-loss polymer(PFCB、MAPTMS、CYTOPTM) produces a promising candicate for waveguide amplifiers operating at 1550nm.
Oleylamine LaF3:Er Yb NCs lanthanide trifluoroacetate polymer-based erbium-doped waveguide amplifiers(EDWA)
胡晋 王建设 汪琦 甄珍 刘新厚
中国科学院理化技术研究所,有机光电功能材料和分子工程重点实验室,北京 100080;中国科学院研究生院,北京 100049 中国科学院理化技术研究所,有机光电功能材料和分子工程重点实验室,北京 100080
国际会议
成都
英文
2007-11-19（万方平台首次上网日期，不代表论文的发表时间）