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Local electrooptic effect of the SiC large-sized nanocrystallites incorporated in polymer matrices

Local electrooptic effect of the SiC large-sized nanocrystallites incorporated in polymer matrices,10.1016/S0375-9601(02)00965-9,Physics Letters A,J.

Local electrooptic effect of the SiC large-sized nanocrystallites incorporated in polymer matrices   (Citations: 1)
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Linear electro-optical effect (LEO) is experimentally demonstrated in large-sized (10 and 30 nm) silicon carbide nanocrystallites (nc-SiC) incorporated in poly(N-vinylcarbazole) (PVK) blended with coumarine (MK). By using the angle-dependent polarimetric method at λprobe=694 nm, in both static and photoinduced regimes, we have shown that embedding the nc-SiC within polymer host matrices gives rise to an enhancement of the LEO effective parameters up to 1.325 pm/V. The absence of these phenomena in the separate components—i.e., pure wurtzite-like SiC crystals as well as the organic matrices—suggests that the observed local electro-optical response is intimately driven by the interfacial hyperpolarizabilities appearing between the nc-SiC and the surrounding organic matrix.
Journal: Physics Letters A - PHYS LETT A , vol. 302, no. 4, pp. 196-202, 2002
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