Skip to main content Accessibility help

Sol-Gel Derived Titaniajormosil Composite Thin Films For Optical Waveguide Applications

  • Wenxiu Que (a1), Y. Zhou (a1), Y. L. Lam (a1), Y. C. Chan (a1), S. D. Cheng (a1), C. H. Kam (a1) and H. X. Zhang (a1)...


We report the preparation of sol-gel waveguide films based on a newly developed recipe to incorporate organic molecules into the inorganic sol-gel glass matrix. The film was derived from a sol that has a higher titanium content in an organically modified silane (ORMOSIL), namely, ÿ-Glycidoxypropyltrimethoxysilane. We have shown that using spin-coating and low temperature baking, a single coating layer can have a thickness of more than 1.5 μm. When such a single layer film is deposited on a microscope glass slide or a piece of silicon with a buffercladding layer, it is able to support the guiding of optical waves. We have characterized the film using scanning electron microscopy, atomic force microscopy, X-ray diffractometry, thermal gravimetric analysis. differential thermal analysis and Fourier transform infrared spectroscopy and have studied the properties of the waveguide film, including the microstructural properties. the chemical bonding properties, and the optical properties. Based on these experimental results, we found that a heat-treatment at a temperature slightly below 200°C is necessary to attain a dense pore-free film. It has also been noted that a purely inorganic and crack-free silica-titania film can be obtained after baking the titania-ORMOSIL composite film at 500°C or higher.



Hide All
1. Ulrich, Schubert, Nicola, Hüsing, and Anne, Lorenz Chem. Mater. 7, p. 2,010 (1995).
2. Makoto, Yoshida and Prasad, Paras N., Chem. Mater. 8, p. 235 (1996).
3. Doeuff, S., Henry, M., Sanchez, C., and Livage, J., J. Non-Cryst. Solids 89, p. 206 (1987).10.1016/S0022-3093(87)80333-2
4. Sanchez, C., Livage, J., Henry, M., and Babonneau, F., J. Non-Cryst. Solids 100, p. 65 (1988).10.1016/0022-3093(88)90007-5
5. Doeuff, S., Dromzee, Y., Taulelle, F., and Sanchez, C., Inorg. Chem. 28, p. 4,439 (1989).10.1021/ic00324a006
6. Doeuff, S., Henry, M., and Sanchez, C., Mater. Res. Bull. 25, p. 1,519 (1990).10.1016/0025-5408(90)90129-P
7. Schmidt, H. and Seiferling, B., MATER. Res. Soc. Symp. Proc. 73, p. 739 (1986).10.1557/PROC-73-739
8. Léaustic, A. and Riman, R. E., J. Non-Cryst. Solids 135, p. 259 (1991).10.1016/0022-3093(91)90429-A
9. Sorek, Y., Reisfeid, R., Finkelstein, I., and Ruschin, S., Appl. Phys. Lett. 63, p. 3,256 (1993).10.1063/1.110166
10. Smith, A. L., Spectrochim. Acta 16, p. 87 (1960).10.1016/0371-1951(60)80074-4


Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed