Dye crystallization

Fig. 11. Basic stmctural concepts for the three primary color anthraquinone Hquid crystal dyes.

Table 10. Some Examples of Liquid Crystal Dyes...

The alkalides. The first crystalline alkalide to be prepared in this manner was [Na+(2.2.2)].Na. This salt is obtained as shiny, gold-coloured crystals (Dye etal., 1974). The 23Na nmr spectrum yields a narrow upfield signal for the Na- ion (Dye, Andrews Ceraso, 1975) the X-ray structure indicates close-packed sodium cryptate cations with Na" anions occupying octahedral holes between the cryptate layers (Tehan, Barnett Dye, 1974). 

EPFL (Switzerland) nano-crystal dye sensitized cell... 

Silver halide microcrystals are wide band gap semiconductors which exhibit weak photoconductivity. Early experiments demonstrated that dyes that sensitized silver halide photographic action also sensitized silver halide photoconductivity [6c]. Since the observation of photoconductivity necessitates the movement of free charge within the crystals, dye sensitization processes must inject charge into the silver halide lattice in some way. Initial theories of sensitization were based on the semiconductor view of silver halides, especially as espoused by Gurney and Mott [10]. Current ideas are based on thorough studies of the absorption spectroscopy and luminescence of silver halide emulsions and of adsorbed, sensitizing dyes, and the oxidation-reduction properties of the dyes at silver/silver halide electrodes [11]. 

Complex coacervation can be used to produce microcapsules containing flavor, fragrant oils, liquid crystals, dyes, or inks as the core material. Capsules for carbonless paper applications were produced by complex coacervation process. 

Goldberg, L.S, Schnur, J.M. (1973) Tunable internal-feedback liquid crystal-dye laser. US patent No. 3,771,065. 

Okabe, Masato. Polarizing plate with improved polarizing performance containing tabular-type lyotropic liquid crystal dye, hquid crystal display using the same, and manufacture of the polarizing plate. Jpn. Kokai Xokkyo Koho IP 2005010768, 2005 Chem. Abstr. 2005,142,103499. 

The Liquid Crystal Point Diffraction Interferometer (LCPDI) can be employed to evaluate the Omega Laser system for optimum firing capabilities. This device utilizes a nickel dithiolene infmred absorbing liquid crystal dye dissofved in a liquid crystal host medium (Merck E7). Three nickel dithiolene dyes were characterizedfior both their solubility in the E7 host and their infrared spectral absorption. 

Other Names C.I. Basic Blue 9 Phenothiazin-5-ium, 3,7-bis(dimethylamino)-, chloride Aizen Methylene Blue BH Aizen Methylene Blue FZ Basic Blue 9 Basic Lake Blue C.I. 52015 C.I. Solvent Blue 8 Calcozine Blue ZF Chromosmon Duasyn Basic Blue lAD Ext D and C Blue No. 1 External Blue 1 Hidaco Methylene Blue Salt Free Izit Crystal Dye Leather Pure Blue HB Maxilon Blue SG Methylene Blue 2B Methylene Blue 2BF Methylene Blue 2BN Methylene Blue 2BP Methylene Blue A Methylene Blue B Methylene Blue BB Methylene Blue BBA Methylene Blue BD Methylene Blue BP Methylene Blue BPC Methylene Blue BX Methylene Blue BZ Methylene Blue D Methylene Blue FZ Methylene Blue G Methylene Blue GZ Methylene Blue HGG Methylene Blue lAD Methylene Blue JFA Methylene Blue MB Methylene Blue N Methylene Blue NF Methylene Blue NZ Methylene Blue SG Methylene Blue SP Methylene Blue ZF Methylene Blue ZX Methylene Blue Zinc Free ... 

Waters, C., Raynes, E. P., and Brimmel, V, Design of highly multiplexed liquid-crystal dye displays, Mol. Cryst. Liq. Cryst., 123, 303, 1985. 

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