Citation:
Mecher, E. ; Bittner, R. ; Brauchle, C. ; Meerholz, K. ; Zelichenok, A. ; Wender, M. ; Vaganova, E. ; Yitzchaik, S. Photorefractive Polymer Composites Based on Poly(4-vinylpyridine). SPIE Conf. Proc. 2001, 4462, 159-162.
Abstract:
We test poly(4-vinylpyridine) as a new matrix polymer in photorefractive polymer composites. It has excellent compatibility with OH-derivatized electro-optical chromophores due to H-bonding. Due to the slightly higher polarity, the molecular figure-of-merit of the chromophores is enhanced, yielding improved steady-state PR performance compared with PVK-based reference materials. However, because of the H-bonding the orientational mobility of the chromophores is hindered, limiting the dynamics of grating formation.