Hostname: page-component-76fb5796d-9pm4c Total loading time: 0 Render date: 2024-04-26T04:50:58.661Z Has data issue: false hasContentIssue false
  • English
  • Français

Synthesis and photoresponse of rare earth doped phosphosilicates

Published online by Cambridge University Press:  10 February 2011

Z. Cao ,
B. I. Lee ,
W. D. Samuels ,
G. J. Exarhos  and
L. Wang
Z. Cao
Affiliation:
Gilbert C. Robinson Department of Ceramic and Materials Engineering, Clemson University, Clemson, South Carolina 29634–0907
B. I. Lee
Affiliation:
Gilbert C. Robinson Department of Ceramic and Materials Engineering, Clemson University, Clemson, South Carolina 29634–0907
W. D. Samuels
Affiliation:
Battelle Pacific Northwest National Laboratory, Richland, Washington 99352
G. J. Exarhos
Affiliation:
Battelle Pacific Northwest National Laboratory, Richland, Washington 99352
L. Wang
Affiliation:
Battelle Pacific Northwest National Laboratory, Richland, Washington 99352
Get access

Abstract

Phosphate ceramics doped with Sm3+ and Tb3+ ions were synthesized through sol-gel process. Thin films of Tb3+ doped phosphosilicates were fabricated by spin coating of the phosphosilicate sols on SiOx/indium-tin-oxide/glass substrates. The gels synthesized by reaction of P2O5 with tetraethoxy silane (TEOS) were fired in air at a temperature range of 200°C – 900°C. The crystal structure was examined by x-ray diffractometry. Si5O(PO4)6 was the only crystalline phase. The fluorescence spectra of Sm3+ as a function of firing temperature, composition and structure of the matrices were investigated. The intensity of Sm3+ emission increased with increasing firing temperatures and greater proportion of phosphorus. The photocurrent of the films at 355 nm laser excitation was observed. The photoresponse as a function of laser energy was linear and showed no sign of saturation. The films exhibited stable photoresponse under a high number of laser shots.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 495: Symposium W – Chemical Aspects of Electronic Ceramics Processing , 1997 , 215
Copyright
Copyright © Materials Research Society 1998

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1. Takebe, H., Morinaga, K., Izumitani, T., J. Non-Cryst. Solids, 178, 58 (1994).Google Scholar
2. Xu, W., Dai, S., Toth, L. M., Del Cul, G. D., Peterson, J. R., J. Non-Cryst. Solids, 194, 235 (1996).Google Scholar
3. Cao, Z., Lee, B. I., Samuels, W. D., Exarhos, G. J., J. Applied Physics, in press.Google Scholar
4. Lee, B. I., Cao, Z., Sisk, W. N., Hudak, J., Samuels, W. D., Exarhos, G. J., Mater. Res. Bull., 32, 9 (1997).Google Scholar
5. Crichton, S., Yamanaka, H., Matsuoka, J., and Wakabayashi, E., in Ceramic Trans. Solid-State Optical Materials, edited by Bruce, A. J. and Hiremath, B. V., (Am. Ceram. Soc, Westerville, OH 1992), p493.Google Scholar
6. Dong, L., Cruz, J. L., Tucknott, J. A., Reekie, L., and Payne, D.N., Optical Letters, 20, 1982 (1995).Google Scholar
7. Marion, J. E. and Weber, M. J., Smr. J. Solid State Inorg. Chem. 28, 271 (1991).Google Scholar
8. Guo, Y., Woznicki, P., Barkatt, A., Saad, E. E., and Talmy, I. G., J. Mat. Res. 11, 3 (1996).Google Scholar
9. Lee, B. I., Samuels, W. D., Wang, L., and Exarhos, G. J., J. Mater. Res. 11, 1 (1996).Google Scholar
10. Cao, Z., Lee, B. I., Samuels, W. D., Exarhos, G. J., Wang, L., J. Mater. Res., in press.Google Scholar
11. Szu, S. P., Klein, L. C., and Greenblatt, M., J. Non-Cryst. Solids, 143, 21 (1992).Google Scholar
12. Poojary, D. M., Borade, R. B., and Clearfield, A., Inorganic Chimica Acta, 23, 208 (1993).Google Scholar