Molecular Aggregation and Spectrum Properties of Stilbene 3 Doped Lead-Tin-Fluorophosphate Glass
HE Xiao-ling1,GU Mu1*,ZHAO Zhi-wei1,HUANG Shi-ming1,LIU Xiao-lin1,LIU Bo1,NI Chen1,OUYANG Xiao-ping2
1. Laboratory of Waves & Microstructure Materials,Pohl Institute of Solid State Physics,Tongji University,Shanghai 200092,China 2. Northwest Institute of Nuclear Technology，Xi’an 710024,China
Abstract：Lead-tin-fluorophosphate(PTFP) glasses with different concentrations of organic dye stilbene 3 were prepared by low temperature melting. The molecular aggregation and spectrum properties of stilbene 3 doped lead-tin-fluorophosphate glass were studied by means of emission spectra,excitation spectra and absorption spectra measurements. The results show that stilbene 3 dimers coexist with its monomers in inorganic glass. Compared with the excitation peak of stilbene 3 monomer,the excitation peak of stilbene 3 dimer is in the range of shorter wave band. As the concentration of stilbene 3 in the doped PTFP glass increased,the emission peak was red shifted and the concentration quenching of stilbene 3 was observed in the emission spectra. Compared stilbene 3 in PTFP glass with that in ethanol,a remarkable red shift of the absorption and emission spectra in the glass was found. The phenomenon is explained by the bond effect between stilbene 3 and matrix glass by hydrophilic interaction. And a much higher fluorescence intensity of stilbene 3 in the inorganic glass than that in ethonal is attributed to the “cage” effect.
Key words：Stilbene 3;Molecular aggregation and spectrum properties;Lead-tin-fluorophosphate glass
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