Hostname: page-component-78c5997874-m6dg7 Total loading time: 0 Render date: 2024-11-19T06:48:21.820Z Has data issue: false hasContentIssue false

Point Defects in Amorphous SiO2: What Have We Learned from 30 Years of Experimentation?

Published online by Cambridge University Press:  25 February 2011

David L. Griscom*
Affiliation:
Optical Sciences Division, Naval Research Laboratory, Washington, DC 20375
Get access

Abstract

Point defects in amorphous silicon dioxide (a-SiO2) have been studied for over 30 years by numerous spectroscopic techniques, including optical absorption and emission and electron spin resonance (ESR). While all of these experimental approaches have yielded valuable insights, only ESR has afforded detailed atomic-scale structural characterizations. ESR spectra of two fundamental classes of defects in a-SiO have been knon since the 1956 work of Weeks. However, many crucial detaiis such as the 29Si and 17O hyperfine structures of these centers have been provided only within the past dozen years. From these results, it is known that the so-called E′ center comprises an unpaired electron in a dangling tetrahedral orbital of a single silicon atom at the site of an oxygen vacancy; at least three variants of the E′ center have been distinguished in a-SiO2. Two additional intrinsic defect types, the nonbridging oxygen hole center and the superoxide radical, have also been identified by ESR, these being relatively more prevalent in irradiated silicas of high and low hydroxyl contents, respectively. Recent theoretical developments have proven indispensible to the modeling of the E′ centers and have yielded valuable insights on the superoxide defects.

Type
Articles
Copyright
Copyright © Materials Research Society 1986

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

1. Weeks, R. A., J. Appl. Phys. 27, 13761381 (1956).CrossRefGoogle Scholar
2. Nelson, C. M. and Weeks, R.A., J. Am. Ceram. Soc. 43, 396399 (1960).CrossRefGoogle Scholar
3. Weeks, R. A. and Nelson, C.M., J. Am. Ceram. Soc. 43, 399404 (1960).CrossRefGoogle Scholar
4. Primak, W., Fuchs, L.H., and Day, P., Phys. Rev. 92, 1064 (1953).CrossRefGoogle Scholar
5. Mitchell, E. W. J. and Paige, E.G.S., Phil. Mag. 1, 10851115 (1956).CrossRefGoogle Scholar
6. Arnold, G. W. and Compton, W.D., Phys. Rev. 116, 802811 (1959).CrossRefGoogle Scholar
7. Levy, P. W., J. Phys. Chem. Solids 13, 287295 (1960).CrossRefGoogle Scholar
8. Well, J. A., Phys. Chem. Minerals 10, 149165 (1984).CrossRefGoogle Scholar
9. Griscom, D. L., J. Non-Cryst. Solids 73, 5177 (1985).CrossRefGoogle Scholar
10. Griscom, D. L., Crit. Rev. Tech: Radiation Effects in Optical Materials (SPIE) Vol.241 (1986) .Google Scholar
11. Griscom, D. L., J. Non-Cryst. Solids 31, 241266 (1978).CrossRefGoogle Scholar
12. Griscom, D.L., J. Non-Cryst. Solids 40, 211272 (1980).CrossRefGoogle Scholar
13. Griscom, D. L., Nuclear and Electron Resonance Spectroscopies Applied to Materials Science, edited by Kaufmann, E.N. and Shenoy, G.K. (Elsevier North Holland, New York, 1981), pp. 103116.Google Scholar
14. Weeks, R. A. and Sonder, E., Paramagnetic Resonance Vol.2 (1963) 869.Google Scholar
15. Weeks, R. A. and Nelson, C.M., J. Appi. Phys. 31 15551558 (1960).CrossRefGoogle Scholar
16. Wertz, J. E. and Bolton, J.R., Electron Spiin Resonance Elementary Theory and Practical Applications (McGraw-Hill New York, 1972).Google Scholar
17. Silsbee, R. H., J. Appl. Phys. 32, 14591462 (1961).CrossRefGoogle Scholar
18. Weeks, R. A., Phys. Rev. 130, 570576 (1963).CrossRefGoogle Scholar
19. Feigi, F. J., Fowler, W.B., and Yip, K.L., Solid State Comm. 14, 225229 (1974).Google Scholar
20. Yip, K. L. and Fowler, W.B., Phys. Rev. B11, 23272338 (1975).CrossRefGoogle Scholar
21. Isoya, J., Well, J.A., and Halliburton, L.E., J. Chem. Phys. 74, 5436 (1981).CrossRefGoogle Scholar
22. Halliburton, L. E., Perlson, B.D., Weeks, R.A., Weil, J.A., and Wintersgill, M.C., Solid State Commun. 30, 575579 (1979).CrossRefGoogle Scholar
23. Rudra, J. K., Fowler, W.B., and Feigi, F.J., Phys. Rev. Lett. 55, 26142617 (1985).CrossRefGoogle Scholar
24. Marquardt, C. L. and Sigel, G.H. Jr., IEEE Trans. Nucl. Sci. NS–22, 22342239 (1975).CrossRefGoogle Scholar
25. Griscom, D. L., Friebele, E.J., and Sigel, G.H. Jr., Sol. State Commun. 15, 479483 (1974).CrossRefGoogle Scholar
26. Vitko, J. Jr., J. Appi. Phys. 49, 55305535 (1978).CrossRefGoogle Scholar
27. Shendrik, A. V. and Yudin, D.M., Phys. Status Solidi B 85, 343 (1978).CrossRefGoogle Scholar
28. Griscom, D. L., Phys. Rev. B20, 18231834 (1979).CrossRefGoogle Scholar
29. Griscom, D. L., Phys. Rev. B22, 41924202 (1980).CrossRefGoogle Scholar
30. Greaves, G. N., J. Non-Cryst. Solids 32, 295 (1979).CrossRefGoogle Scholar
31. Stapelbroek, M., Griscom, D.L., Friebele, E.J. and Sigel, G.H. Jr., J. Non-Cryst. Solids 32, 313326 (1979).CrossRefGoogle Scholar
32. Griscom, D. L., J. Non-Cryst. Solids 68, 301325 (1984).CrossRefGoogle Scholar
33. Friebele, E. J., Griscom, D.L., Stapelbroek, M., and Weeks, R.A., Phys. Rev. Lett. 42, 13461349 (1979).CrossRefGoogle Scholar
34. Griscom, D. L. and Friebele, E.J., Phys. Rev. B 24, 48964898 (1981).CrossRefGoogle Scholar
35. Griscom, D.L., Nucl. Inst. & Methods B1 481488 (1984).CrossRefGoogle Scholar
36. Griscom, D. L., in Proc. Thirty-Third Frequency Control Symposium (Electronics Industries Assn., Washington, DC, 1979), pp. 98109.Google Scholar
37. Griscom, D. L., J. Appl. Phys. 58, 25242533 (1985).CrossRefGoogle Scholar
38. Rudra, J. K. and Fowler, W.B., (unpublished), 1986.Google Scholar
39. Edwards, A. H. and Fowler, W.B., Phys. Rev. B26, 66496660 (1982).CrossRefGoogle Scholar
40. Griscom, D. L., in Structure and Bonding in Noncrystalline Solids, edited by Revesz, A.G. and Walrafen, G.E. (Plenum, New York, 1986).Google Scholar
41. Griscom, D. L., Sigel, G.H. Jr., and Friebele, E.J., in Proc. XI Int'l. Cona. Glass, Prague (Dum techniky, Praha, 1977), pp. 3–11.Google Scholar
42. Pfeffer, R. L., (unpublished), 1986.Google Scholar
43. Hayes, W., Kane, M. J., Salimen, O., Wood, R.L., and Doherty, S.P., J. Phys. C: Solid State 17, 29432951 (1984).CrossRefGoogle Scholar