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In this paper,a series of small organic molecules containing triphenylamine group, named as G1,G1-COOH,DASD,DASC and NADB,have been synthesized.These compounds contain aldehyde,carboxyl,amide groups connected with triphenylamine groups.And their optical properties concluding absorption and fluorescence emission have been measured.A series of nano-composite particles between newly synthesized small molecules （NADB） and inorganic nano-particles（Au,Au&SiO2,TiO2,ZnS,CdS） have been prepared. The optical properties（absorption and fluorescence） of these composite materials have been measured.It was found that these inorganic nano-particles（Au,Au&SiO2,TiO2,ZnS,CdS） can significantly change the fluorescence of the newly synthesized small molecules（NADB） intensity.The nano-particles（Au,Au&SiO2） can enhance the fluorescence intensity obviously,while the nano-particles（TiO2,ZnS,CdS） decrease the fluorescence intensity of NADB.Intermolecular energy transfer between organic and inorganic species has been discussed based on spectroscopic analysis.
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