Optical transition, excitation and emission properties of poly(N-vinlycarbazole) blended with poly(vinylidene fluoride-co-hexafluoropropene) and polyvinyl pyrrolidone

• Published in: Acta Physica Polonica A
• Main Author: Alias A.N.; Zabidi Z.M.; Harun M.K.; Yahya M.Z.A.; Ali A.M.M.
• Format: Conference paper
• Language: English
• Published: Polska Akademia Nauk 2015
• Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84938833141&doi=10.12693%2fAPhysPolA.127.1430&partnerID=40&md5=687a7a0a468ffbf09f116654f81a5fa9

We present the results concerning the excitation and emissions spectra of Poly (N-carbazole) (PVK) blended with poly(vinylidene fluoride-co-hexafluoropropene), (PVDF-HfP) and polyvinylpyrrolidone (PVP). Thin films of PVK blended with PVDF-HfP (PVK:PVDF-HfP) and PVP (PVK:PVP) were prepared using doctor blade technique on spectrosil substrate. The influences of polymer blends on the excitation and emission spectra were observed under UV excitation source of a xenon lamp. The result shows a discrepancy in the maximum excitation and emission for each sample. The possible energy transfer and recombination mechanisms have been related with singlet-singlet semi-empirical INDO electronic calculation and FTIR measurements.