Preparation and Optical Patterning of Organic-Inorganic Hybrid Color-Filter Films Using Latent Pigments by Utilizing Photo-Acid-Generator and Microwave Irradiation

T. Ohishi, S. Sugawara

Department of Applied Chemistry, Faculty of Engineering, Shibaura Institute of Technology, Tokyo, Japan.

DOI: 10.4236/msa.2014.514111                

Abstract

Preparation and photo-patterning characteristics of organic-inorganic hybrid thin film containing latent pigment by using photo-acid-generator (PAG) and microwave irradiation have been investigated. The acrylic thin film modified with methoxysilane containing PAG was formed on a glass substrate and irradiated with ultraviolet rays to promote sol-gel reaction by catalytic action of acid which was generated from PAG. And then the film was hardened with microwave irradiation, yielding organic-inorganic hybrid polymer film having hardness, highly transparency and strong adhesion with a glass substrate. Since this reaction only occurred in the optically (UV) irradiated regions, by exploiting the difference between the adhesivenesses of these regions photo-irradiated through photomask with a glass substrate, it was possible to form a patterned film with pitch of 100 to 50 μm by a simple lift-off method. A pigment-containing film using latent pigments (with subtractive three primary colors of coloring materials) and a patterned film were prepared, and it was possible to make these films multi-colored by varying the mixing ratio of the pigments. This multi-colored film-preparation method is effective for simply and efficiently forming a color-filter film by applying optical and microwave irradiation.

Keywords

Organic-Inorganic Hybrid Film, Color Filter, Photo-Patterning, Latent Pigment, Photo-Acid-Generator, Microwave, Lift-Off Method

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1]	Sakka, S., Ed. (2004) Handbook of Sol-Gel Technology, Sol-Gel Processing. Vol. 1, Kluwer Anademic Publishers, Dordrecht.
[2]	Sakka, S., Ed. (2004) Handbook of Sol-Gel Technology, Application of Sol-Gel Technology. Vol. 3, Kluwer Anademic Publishers, Dordrecht.
[3]	Sakka, S., Ed. (2005) Application of Sol-Gel Processing to Nanotechnology. CMC Publishers.
[4]	Schmidt, H., Jonscher, G., Goedicke, S. and Mennig, M. (2000) Sol-Gel Process as a Basic Technology of Nanoparticle-Dispersed Inorganic-Organic Composites. Journal of Sol-Gel Science and Technology, 19, 39. http://dx.doi.org/10.1023/A:1008706003996
[5]	Bescher, E. and Mackenzie, J.D. (2003) Sol-Gel Coatings for the Protection of Brass and Bronze. Journal of Sol-Gel Science and Technology, 26, 1223.
[6]	Ro, H.W. and Soles, C.L. (2011) Mater. Today, Silsesquioxanes in Nanoscale Patterning Applications, 14, 20.
[7]	Cordes, D.B., Lickiss, P.D. and Rataboul, F. (2010) Recent Developments in the Chemistry of Cubic Polyhedral Oligosilsesquioxane. Chemical Reviews, 110, 2081. http://dx.doi.org/10.1021/cr900201r
[8]	Ainuddin, A.R., Hakiri, N., Muto, H., Sakai, M. and Matsuda, A. (2011) Mechanical Properties of Phenylsilsesquioxane-Methylsilsesquioxane Hybrid Films by Indentation. Journal of the Ceramic Society of Japan, 119, 490. http://dx.doi.org/10.2109/jcersj2.119.490
[9]	Matsuda, A., Ogawa, R., Daiko, Y., Tadanaga, K. and Tatsumisago, A. (2007) Micropatterning for Vinylsilsesquioxane-Titania hybrid Gel Films with Ultraviolet Light Irradiation. Journal of Photopolymer Science and Technology, 20, 101. http://dx.doi.org/10.2494/photopolymer.20.101
[10]	Ainuddin, A.R., Ishigaki, T., Hakiri, N., Muto, H., Sakai, M. and Matsuda, A. (2012) Influence of UV Irradiation on Mechanical Properties and Structures of Sol-Gel-Derived Vinylsilsesquioxane Films. Journal of the Ceramic Society of Japan, 120, 442. http://dx.doi.org/10.2109/jcersj2.120.442
[11]	Nakazumi, H., Ed. (2004) Displays and Functional Dyes. CMC Publishers.
[12]	Nonomura, K., Higashino, H. and Murai, R. (2002) Plasma Display Materials. MRS Bulletin, 27, 898-902. http://dx.doi.org/10.1557/mrs2002.280
[13]	Okamura, T., Kitagawa, T., Koike, K. and Fukuda, S. (2004) Optical Filters for Plasma-Display Panels Using Organic Dyes and Conductive Meshlayers by Using a Roll-to-Roll Etching Process. Proceedings of the 8th Asian Symposium on Information Display, Nanjing, 15-17 February 2004, 23.
[14]	Yang, Y.C., Song, K., Rho, S.G., Rho, N.S., Hong, S.J., Beul, K.B., Hong, M. and Chung, K. (2005) Society of Information Display (SID) ‘05 Digest, 1210.
[15]	Minato, K., Itoi, T. and Ito, H. (2005) High Contrast Color Filter for LCD-TV. Proceedings of Information Display Workshop (IDW) ’05, 339.
[16]	Nakazumi, H., Ed. (2004) Displays and Functional Dyes. CMC.
[17]	Hatajima, M. (2007) NIKKEI FPD, 126.
[18]	Masuda, J. (2008) Monthly Display, 9, 18.
[19]	Shinmou, K., Tohge, N. and Minami, T. (1994) Effects of UV-Irradiation on the Formation of Oxide Thin Films from Chemically Modified Metal-Alkoxides. Journal of Sol-Gel Science and Technology, 2, 581-585.
[20]	Zhao, G., Tohge, N. and Nishii, J. (1998) Fabrication and Characterization of Diffraction Gratings Using Photosensitive Al2O3 Gel Films. Japanese Journal of Applied Physics, 37, 1842-1846. http://dx.doi.org/10.1143/JJAP.37.1842
[21]	Ono, S. and Hirano, S. (1997) Patterning of Lithium Niobate Thin Films Derived from Aqueous Solution. Journal of the American Ceramic Society, 80, 2533-2540. http://dx.doi.org/10.1111/j.1151-2916.1997.tb03155.x
[22]	Tadanaga, K., Owan, T., Morionaga, J., Urbanek, S. and Minami, T. (2000) Fine Patterning of Transparent, Conductive SnO2 Thin Films by UV-Irradiation. Journal of Sol-Gel Science and Technology, 19, 791-794. http://dx.doi.org/10.1023/A:1008764217509
[23]	Tadanaga, K., Ueyama, K., Sueki, T., Matsuda, A. and Minami, T. (2003) Micropatterning of Inorganic-Organic Hybrid Coating Films from Various Trifunctional Silicon Alkoxides with a Double Bond in Their Organic Components. Journal of Sol-Gel Science and Technology, 26, 431-434. http://dx.doi.org/10.1023/A:1020745820563
[24]	Higashimura, T., et al. (2007) Introduction to New Polymer Chemistry. Kagaku Doujin, Tokyo.
[25]	NIMS NMR Database. http://polymer.nims.go.jo/NMR/
[26]	Zambounis, Z., Hao, H. and Iqbal, A. (1997) Latent Pigments Activated by Heat. Nature, 388, 131-132.