THE EFFECT OF THE TEMPERATURE-TİME MODE OF CRYSTALLİZATİON ON THE PHOTOLUMİNİSSENCE PROPERTİES OF PP+ PbS/CdS NANOCOMPOSİTES
Keywords:polymer nanocomposite, photoluminescence, PbS, CdS
In the present work, the influence of the temperature-time mode of crystallization (TTC) on the photoluminescent properties of PP/PbS/CdS nanocomposite materials was investigated. Cooling in liquid nitrogen (a cooling rate of 20,000 °C/min), cooling in water (a cooling rate of 200 °C/min), and slow cooling under the press for 24 hours (a cooling rate of 20 °C/min) were the three TTC modes used. The photoluminescent spectra of the nanocomposites prepared in different TTC modes were studied by spectrofluorometer Varian Cary Eclipse at a wavelength range of 200–900 nm. It was found that the photoluminescence intensity of nitrogen-cooled nanocomposite samples was higher than the intensity of samples obtained with the other two modes.
Physical and mathematical science