from the emission spectra of coumarin 102 ( c102 ) in different conditions, it showed that c102 molecule existed single in both the composite material films . the sample catalyzed by acid had flat surface and dense structure but it had hackly surface and open structure catalyzed by the alkali 香豆素102(ci02)在不同状1态下的荧光分析表明,无论是碱还是酸催化所得薄膜复合材料,ci02分子在其中基本都以单体的形式存在。