摘要
采用了一种新的掺杂方法——溶胶—凝胶法将稀土配合物掺入多孔硅中.研究结果表明:"溶胶—凝胶法"可有效地把稀土掺入多孔硅中,所制得的杂化材料中,观察到Eu3+、Tb3+特征的橙红色、绿色室温光致发光.而且,通过SiO2对掺入稀土的包裹作用和对多孔硅层的覆盖,提高了多孔硅的稳定性,部分减少了多孔硅的发光猝灭.
we report a novel doping approach, sol - gel method, to effectively incorporate rare earths into porous silicon （PS）, which were proved to dope into PS effectively by photoluminescence （PL） and X- ray energy dispersive spectroscopy （EDX）. The prepared samples of PS： RE were found to emit intense room - temperature characteristic luminescence of Tb^3＋ and Eu^3＋ . The gel film maybe enhance the stability of rare earth to heat, light and surroundings. Such hybridized PS has potential application in communication, sensor and optoelectronic area.
出处
《山东师范大学学报（自然科学版）》
CAS
2008年第4期63-65,68,共4页
Journal of Shandong Normal University(Natural Science)
基金
广东自然科学基金资助项目(06300901)
公安部应用创新计划资助项目(2007YYCXGDST076)
关键词
多孔硅
稀土配合物
溶胶-凝胶法
光致发光
porous silicon
rare earth complex
Sol- gel hemistry
photoluminescence
