By Masaru Matsuoka (auth.), Masaru Matsuoka (eds.)
New laser expertise has constructed a brand new dye chemistry! improvement of the gallium-arsenic semiconductor laser (diode laser) that emits laser mild at 780-830 nm has made attainable improvement of recent opto-electronic platforms together with laser optical recording structures, thermal writing show structures, laser printing platforms, etc. clinical functions of lasers in photodynamic treatment for the therapy of melanoma have been additionally built. In such platforms, the infrared soaking up dyes OR dyes) are at present used as powerful photoreceivers for diode lasers, and may develop into the major fabrics in excessive expertise. today the chemistry of IR dyes is an important and engaging box in dye chemistry. Laser gentle may be hugely monochromatic, rather well collimated, coher ent, and, every so often, super strong. those features make diode lasers a really affordable, handy, and necessary mild resource for various purposes in technology and know-how. For those reasons, even if, IR dyes with targeted features are required. To advance new IR dyes, it really is most vital to set up the correlation among the chemical buildings of dyes and different features of dyes, corresponding to their absorption spectra. Molecular layout of IR dyes predicting the Amax and Emax values by means of molecular orbital (MO) calculations is now attainable even through the use of a private machine, and plenty of forms of new IR dyes were proven. additionally, new opto-electronic platforms utilizing IR dyes as photoreceivers were pronounced recently.
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Phys. Chem. 90, 1069 (1986). 11. G. A. Rillaers and H. M. Depoorter, Jpn. Patent 51-41061. 12. S. Akiyama, S. Nakatsuji, K. Nakashima, M. Watanabe, 1. Chem. Soc. Chern. , 710 (1987). 13. H. Nakazumi, S. Watanabe, S. Kado, and T. Kitao, Chem. , 1039 (1989). 14. M. Hayami and S. Torigoshi, Jpn. Patent 1,158,538, 61-25036. 4 Quinone Dyes MASARU MATSUOKA I. INTRODUCTION Dyes based on the quinone chromophore are widely used in the modem dyestuff industry, and a wide range of colorants have been commercialized.
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S. lOOS (l981). <" Y. Shimura, M. Hoshi, and M. Shimura, J. Electrochem. Soc. 239 (l986) (values for vacuumdeposited film). d G. M. Magner, M. Savy, and G. Scarbeck, J. Electrochem. Soc. 127, 1076 (l980). b Their semiconductor or dielectric properties are useful for diode, piezoelectric, and electrochromic devices. Their optical properties make them suitable for practical applications in xerography, photochemical hole burning, laser disk memory, and photo diodes. Their catalytic activities have led to their utilization in photovoltaic cells and chemical sensors.
