Quantum Confinement Effect of Fullerenes in Silica Aerogel
SHEN Jun, ZHU Lei1, WANG Jue, LI Yufen1, WU Xiang2
Pohl Institute of Solid State Physics, Tongji University, Shanghai 200092
1T. D. Lee Physics Laboratory, Fudan University, Shanghai 200433
2International Center for Material Physics, Academia Sinica, Shenyang 110015;
Chinese Center of Advanced Science and Technology (World Laboratory), P. O. Box 8730, Beijing 100080;
and Pohl Institute of Solid State Physics, Tongji University, Shanghai 200092
Quantum Confinement Effect of Fullerenes in Silica Aerogel
SHEN Jun;ZHU Lei1;WANG Jue;LI Yufen1;WU Xiang2
Pohl Institute of Solid State Physics, Tongji University, Shanghai 200092
1T. D. Lee Physics Laboratory, Fudan University, Shanghai 200433
2International Center for Material Physics, Academia Sinica, Shenyang 110015;
Chinese Center of Advanced Science and Technology (World Laboratory), P. O. Box 8730, Beijing 100080;
and Pohl Institute of Solid State Physics, Tongji University, Shanghai 200092
Abstract： Fullerenes (C60/C70) were encased in silica aerogel by sol-gel process followed by supercriticd drying technique. Visible light emission was observed from the composite under Ar+ laser (488nm) excitation at room temperature. The luminescent intensity was found to decrease whilst being red shift with the increase of the fullerene content in the composite (from 0.05 up to 2.5mol%). This can be interpreted with quantum confinement effect of fullerenes confined in networks of the nanoporous silica aerogel.
1995, Vol. 12 
