Enhancement in crystalline perfection and optical properties of Benzophenone single crystals: A remarkable effect of liquid crystals
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چکیده
The remarkable enhancement in crystalline perfection of Benzophenone crystals, induced by the presence of liquid crystals in melt during the growth, been investigated. The crystal structure was confirmed by powder X-ray diffraction. Nuclear magnetic resonance analyses depicted that liquid crystal molecules did not incorporate in the lattice of grown crystals. The high resolution X-ray diffractometry analysis for (200) diffracting of grown crystals demonstrates, the structural grain boundaries persisting in pure crystals could be eliminated by the aligning effect of liquid crystals . The photoluminescence investigations support the enhancement in crystall ine perfection. Along with crystalline perfection improvement the liquid crystals also improved the optical transparency over its entire transparency region and optical polarizing behavior (birefringence) of the Benzophenone crystals. Chapter – 6 LC induced Benzophenone ~ 140 ~ 6.
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Enhancement in crystalline perfection and optical properties of benzophenone single crystals: the remarkable effect of a liquid crystal
The remarkable enhancement of the crystalline perfection of benzophenone (BP) crystals induced by liquid crystal (LC) doping has been investigated, and has in turn led to better optical properties. High-resolution X-ray diffractometry demonstrates that the structural grain boundaries present in pure crystals can be eliminated when the crystal is grown with LC doping. Thus, the high alignment ca...
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