Photoluminescence properties of poly(thiophene-3y1-acetic acid 8-quinolinyl ester) in solution and in acid medium

摘要

The photoluminescence characteristics and quantum yields of poly(thiophene-3-yl-acetic acid 8-quinolinyl ester) have been studied. Fluorescence measurements indicate that fluorescence quantumefficiency increases with decreasing the concentration of polymer solution. The quantum yield ofthe polymer in the solution is higher than that of the Rhodamine B dye at lower concentration.The behaviour of photoluminescence property is studied under different acidic conditions. Thefluorescence quenching is observed in the acid medium without any shift in the wavelength.