Study On Optical Properties Of Small Molecule With Triphenylamine

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.