Photorefractive fully functional

Fully functional photorefractive polymer with a Ruthenium complex... 

Figure 14. Examples of fully functional photorefractive polymers.

Fig. 16a,b. Schematics of different chemical designs for photorefractive polymers a guest/host b fully functionalized approach... 

To eliminate instabilities caused by phase separation, fully functionalized photorefiractive polymers, i.e., polymers, in which both the photoconductivity and the NLO capability are unified, have been proposed. Functionalized photorefractive polymers are collected in Table 1.5. 

C. Engels, D. Van Steenwinckel, E. Hendrickx, M. Schaerlaekens, A. Persoons, and C. Samyn. Efficient fully functionalized photorefractive polymethacrylates with infrared sensitivity and different spacer lengths. J. Mater. Chem., 12(4) 951-957, 2002. 

Figure 1. Examples of photorefractive polymer design a) guest/host composite b) fully functionalized side>chain polymer c) fiilly functionalized main chain polymer d) interpenetrated cross-linked polymer network.

Van Steenwinckel D, Engels C, Gubbelmans E, Hendrickx E, Samyn C, Persoons A. Fully functionalized photorefractive polymethacrylates with net gain at 780 nm. Macromolecules 2000 33 4074-9. 

Marder et a/./ describe the synthesis of several new photorefractive polymers, which are composed of a new type of nonlinear optical chromophore attached to conjugated polymer, poly(p-phenylene-thiophene). Since the NLO chromophore is labile in many reaction conditions, the Stille coupling reaction was used to prepare these polymers. The resulting polymers exhibit high PR performances. An optical gain coefficient of 158 cm at a field of 50 V/ m and a diffraction efficiency of 68% at a field of 46 V/ m for polymer PI were obtained, which are among the best values for fully functionalized PR polymers to date. 

Syntheses and characterization of three fully functionalized photorefractive polymethacrylates containing different chromophores were reported Carbazole and nonlinear optics-functionalized methacrylate... 

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