Author/Authors :
Zojer، نويسنده , , E. and Markart، نويسنده , , Jaroslaw P. and List، نويسنده , , E.J.W. and Graupner، نويسنده , , W. and Smith، نويسنده , , R. and Leising، نويسنده , , G. and Shinar، نويسنده , , Edward J. and Gin، نويسنده , , D.، نويسنده ,
Abstract :
We present photophysical properties, like spectral line-shape and site selectivity of photoluminescence (PL), PL quantum yields and Optically Detected Magnetic Resonance (ODMR) responses of bulk poly(para-phenylenevinylene) films and isolated PPV chains incorporated into a self-assembled matrix ordered at a nanometer scale. The ordering is a result of the lyotropic liquid-crystalline character of the matrix material, which leads to the formation of a regular hexagonal array of channels with a diameter of about 15 ه, in which the conjugated polymer chains are contained. The structure of the nanocomposite is confirmed by X-ray diffraction analysis.
Keywords :
superlattices , Poly (phenylene vinylene) and derivatives , Optical absorption and emission spectroscopy , Optically detectedmagnetic resonance
