Insights on photophysical proprieties of DCM dye in PVK host matrix

In this work, the photophysical proprieties of 4‐(dicyanomethylene)‐2‐methyl‐6‐(p‐dimethylaminostyryl)‐4H‐pyran (DCM) dye in the poly‐vinylcarbazole (PVK) matrix are analyzed with a particular attention to the energy transfer processes between the matrix and the dye. PVK films doped with weight perc...

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Bibliographic Details
Published in:Polymer composites 2013-09, Vol.34 (9), p.1500-1505
Main Authors: Bruno, Annalisa, Mauro, Anna De Girolamo Del, Nenna, Giuseppe, Haque, S.A., Minarini, Carla
Format: Article
Language:English
Subjects:
Applied sciences
Blending
Doppler effect
Dyes
Electrical, magnetic and optical properties
Emission spectra
Energy transfer
Exact sciences and technology
Organic polymers
Physicochemistry of polymers
Polymers
Polyvinyl carbazole
Properties and characterization
Quenching
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Summary:In this work, the photophysical proprieties of 4‐(dicyanomethylene)‐2‐methyl‐6‐(p‐dimethylaminostyryl)‐4H‐pyran (DCM) dye in the poly‐vinylcarbazole (PVK) matrix are analyzed with a particular attention to the energy transfer processes between the matrix and the dye. PVK films doped with weight percent varying from 1 to 8 wt% of DCM have been fabricated. The emission spectra are dominated by the presence of DCM and a strong red shift in the emission spectra of the blend has been observed as function of dye concentration. A quenching effect in the excitons lifetime increasing the concentration of the dopants has been observed. These two phenomena have been studied in terms of energy processes inside the blends. POLYM. COMPOS., 34:1500–1505, 2013. © 2013 Society of Plastics Engineers
ISSN:0272-8397
1548-0569
DOI:10.1002/pc.22441