Conditions leading to the formation of polymer thin layers with densely dispersed organic dyes using the vapor transportation method with vacuum technique

Toshiko Mizokuro; Hiroyuki Mochizuki; Noritaka Yamamoto; Norio Tanaka; Shin Horiuchi; Nobutaka Tanigaki; Takashi Hiraga

doi:10.1117/12.473168

14 July 2003 Conditions leading to the formation of polymer thin layers with densely dispersed organic dyes using the vapor transportation method with vacuum technique

Toshiko Mizokuro, Hiroyuki Mochizuki, Noritaka Yamamoto, Norio Tanaka, Shin Horiuchi, Nobutaka Tanigaki, Takashi Hiraga

Author Affiliations +

Proceedings Volume 4991, Organic Photonic Materials and Devices V; (2003) https://doi.org/10.1117/12.473168
Event: Integrated Optoelectronics Devices, 2003, San Jose, CA, United States

Abstract

The "vapor transportation method" with vacuum technique, developed previsouly in our laboratory, was used to form polymer thin layers with densely dispersed photochromic dyes on polystyrene (PS), poly(methyl methacrylate) (PMMA), and polymcarbonate (PC) substrates. The organic photochrmoic dye cis-1,2-dicyano-1,2-bis(2,4,5-trimethyl-3-thienyl)ethane (CMTE) was used, and the rate of formation of the CMTE-conatining layer was as follows: PS > PC > PMMA. These observations are important for application of the present method to the formation of organic memory media for optical recording etc. These results also indicate that the formation rate is dependent on not only the chemical composition and the structure of the polymer substrate, but also on the treatment temperature. Optical density measurements of the CMTE-dispersed thin polymer films showed maximum values near the glass transition temperature (g) with increases in temperature of film formation. The T_g values of CMTE-dispersed polymers decreased rapidly after CMTE-dispersal into the polymer matrices, indicating that T_g values of the polymers are important parameters for investigation of the mechanism of formation of CMTE-dispersed layers on polymer substrates using the present method.

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Toshiko Mizokuro, Hiroyuki Mochizuki, Noritaka Yamamoto, Norio Tanaka, Shin Horiuchi, Nobutaka Tanigaki, and Takashi Hiraga "Conditions leading to the formation of polymer thin layers with densely dispersed organic dyes using the vapor transportation method with vacuum technique", Proc. SPIE 4991, Organic Photonic Materials and Devices V, (14 July 2003); https://doi.org/10.1117/12.473168

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