Refractive Index Adjustment of SiO2 Gel Glass with Zirconium Oxychloride

ZrO2-SiO2 binary oxide gel glasses with various Zr contents were prepared by the sol–gel method with zirconium oxychloride and tetraethoxysilane as precursors. It is found that the refractive index of mixed oxide gel glass is linear with the Zr content and suitable heat treatment will give rise to an increase in the refractive index. By employing FTIR techniques, a new Zr—O—Si bond has been investigated with part of the zirconium ions being incorporated into the silica network. The capability to tune the refractive index for the blend sample with Zr ions and to obtain a stable refractive index at relative low treatment temperature suggests that the gel glass is potential matrix for doping with near IR fluorescence organic dyes and make them promising materials for active optical waveguides.

[1]  Xingfang Hu,et al.  Study on the structure and properties of ZrO2 buffer layers on stainless steel by XRD, IR and AES , 2001 .

[2]  A. G. Haerle,et al.  Microstructural Characterization of Alumina and Silicon Carbide Slip‐Cast Cakes , 2005 .

[3]  Renata Reisfeld,et al.  Preparation and properties of active waveguides based on zirconia glasses , 1997 .

[4]  J. Sohn,et al.  Correlation between the infrared band frequency of the silanol bending vibration in TiO2$z.sbnd;SiO2 catalysts and activity for acid catalysis , 1991 .

[5]  Katsuhisa Tanaka,et al.  Thermal evolution of gels derived from CH3Si(OC2H5)3 by the sol-gel method , 1990 .

[6]  B. G. Anderson,et al.  Silica-Supported Zirconia. 1. Characterization by Infrared Spectroscopy, Temperature-Programmed Desorption, and X-ray Diffraction , 1995 .

[7]  Hua Chun Zeng,et al.  A catalyst-free approach for sol–gel synthesis of highly mixed ZrO2–SiO2 oxides , 1999 .

[8]  R. Campostrini,et al.  Structure and dynamics of hydrogenated silica xerogel by Raman and Brillouin scattering , 1997 .

[9]  L. E. Regalado,et al.  Refractive index measurement of pure and Er3+-doped ZrO2-SiO2 sol-gel film by using the Brewster angle technique , 2002 .

[10]  R. Gómez,et al.  Preparation of sol-gel sulfated ZrO2SiO2 and characterization of its surface acidity , 1995 .

[11]  N. Xu,et al.  Influences of sol and phase stability on the structure and performance of mesoporous zirconia membranes , 2000 .

[12]  A. Annila,et al.  The effect of preparation methods on the properties of zirconia/silicas , 1994 .

[13]  H. Bosman,et al.  Characterization of the Acid Strength of SiO2-ZrO2 Mixed Oxides , 1994 .

[14]  C. H. Byers,et al.  Nucleation and growth for synthesis of nanometric zirconia particles by forced hydrolysis , 1998 .

[15]  E. I. Ko,et al.  Control of mixed oxide textural and acidic properties by the sol-gel method , 1997 .

[16]  M. Pichavant,et al.  Morphology of Zirconia Synthesized Hydrothermally from Zirconium Oxychloride , 1992 .

[17]  M. Inaba,et al.  Growth rate of yttria-stabilized zirconia thin films formed by electrochemical vapour-deposition using NiO as an oxygen source: II. Effect of the porosity of NiO substrate , 1997 .

[18]  C. Serna,et al.  ZrO2-SiO2 materials prepared by sol-gel , 1988 .

[19]  D. Martín,et al.  Sol-gel zirconia coatings aimed at dust suppression in aluminosilicate high temperature insulating blankets , 1996 .