C_(60)-PMMA复合膜的红外光谱研究  

IR Spectra Study of C_(60)-PMMA Composite Films

作　　者：李英兰[1] 麻华丽[1] 杨保华[1] 王锋[1] 严辉[2] 陈光华[2] 

机构地区：[1]北京理工大学理学院,北京100081 [2]北京工业大学材料科学与工程学院,北京100022

出　　处：《北京理工大学学报》2005年第6期543-545,共3页Transactions of Beijing Institute of Technology

摘　　要：用溶胶-凝胶法制备了C60-PMMA复合膜,研究了该膜的红外吸收谱,发现复合膜的红外吸收光谱在C60特征峰(1182cm-1和1428cm-1)附近,相对PMMA有明显的"红移"宽化.理论上,采用Gaussian98计算方法,得到了C60分子和带有电荷的C60的红外振动频率.研究表明:复合膜的红外谱"红移"宽化是C60与PMMA之间的电荷转移导致C60红外特征峰红移引起的.<Abstrcat> C_(60)-PMMA composite films on Si(100) substrate were prepared by the sol-gel method, and its IR spectra was studied. It was found that near the C_(60) IR characteristic peaks (1 182 cm^(-1) and 1 428 cm^(-1)), there were red-shift and extension relative to IR absorption spectra in PMMA. Theoretically, we obtained C_(60) and C_(60) with different charges IR spectra. Investigations concluded that the reason why composite films IR spectra were observed with red-shift and extension was the occurance charge-transfers between C_(60) and PMMA inducing pristine C_(60) IR absorption spectra red-shift.

关 键 词：溶胶-凝胶 C60-PMMA 复合膜 电荷转移效应 红外光谱 

分 类 号：TB43[一般工业技术]