Photorefractive Effect in Poly (N-Vinylcarbazole) Composite with Fullerene
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Abstract
The photorefractive effect was observed in poly(N-vinylcarbazole) composite films doped with electro-optic chromophore 2,5-dimetly-4(p-nitrophenylazo) anisole, plasticizer N-ethylcarbazole and different content fullerene C60. Their two-beam coupling experiment was performed by using a cw He-Ne laser at 632.8nm. The two-beam-coupling gain coefficient as higher as 140cm-1 was measured at poling dc electric field of 76V/μm and it was also found to be relied on the content of photosensitizer C60.
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References
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