α-噻吩羧酸锌铕复合物的光谱性质

Luminescence of Zinc and Europium Composite α-thiophene Carboxylate

本文采用流变相反应法合成了具有很强红色发光的α 噻吩羧酸锌铕复合物 ,测定了样品的粉末X 射线衍射数据、热重曲线、紫外、红外光谱、激发和发射光谱 ,讨论了硫杂环和锌对铕离子特征发射的影响。α 噻吩羧酸锌铕复合物中锌能增加铕离子的特征发射强度 。

Zinc and europium composite α thiophene carboxylate with very strong red luminescence was prepared from zinc oxide,europium oxide,and α thiophene carboxylic acid by a rheologic phase reaction method.The thermal stability and X ray diffraction pattern were measured.The IR,UV,excitation and emission spectra were studied.The influence of zinc ion and thiophene on luminescence intensity was discussed.In zinc and europium composite α thiophene carboxylate,zinc ion can reduce the concentration quenching and effectively enhance the luminescence of Eu 3+ ion,thiophene ring can increase the luminescence efficiency.