掺杂C60的SiO2气凝胶的制备及荧光特性研究

利用“化学掺杂”方法，制备掺杂C₆₀-SiO₂气凝胶，对掺杂C₆₀-SiO₂气凝胶的红外吸收光谱、飞行时间质谱的测试表明C₆₀分子被成功地掺入SiO₂气凝胶中．室温条件下，在Ar⁺激光（488nm）激发下，观察到掺杂C₆₀-SiO₂气凝胶有很强的可见发光现象，发光峰位较纯C₆₀发光明显蓝移 关键词：

PREPARATION OF FULLERENCE DOPED SILICA AEROGELS AND THE STUDY OF PHOTOLUMINESCENCE- PROPERTIES

This paper introduces the preparation of fullerence doped silica aerogels by “chemically doped” and sol gel process.The infrared spectra and time of flight mass spectra show that C₆₀ were successfully incorporated into the silica aerogel and the structures were retained in the fabrication process.Photoluminescence spectra shows that fullerence doped silica aerogels exhibit broad visible light under Ar⁺ laser(488nm).The photoluminescence is blue shifted compared with pure C₆₀.In this paper, we give an explanation to this blue shift.