Hostname: page-component-78c5997874-j824f Total loading time: 0 Render date: 2024-11-19T15:25:50.688Z Has data issue: false hasContentIssue false
  • English
  • Français

Organic-Inorganic Junctions formed on Porous Silicon: Isolation of a Surface Configuration primary to the Luminescence Mechanism.

Published online by Cambridge University Press:  28 February 2011

T. R. Cottrell ,
J. B. Benziger ,
J. C. Yee ,
J. K. M. Chunt  and
A. B. Bocarslyt
T. R. Cottrell
Affiliation:
Department of Chemical Engineering, Princeton University, Princeton, NJ 08544–5263
J. B. Benziger
Affiliation:
Department of Chemical Engineering, Princeton University, Princeton, NJ 08544–5263
J. C. Yee
Affiliation:
Department of Electrical Engineering, Princeton University, Princeton, NJ 08544–5263
J. K. M. Chunt
Affiliation:
Frick Chemical Laboratory, Princeton University, Princeton NJ, 08544–5236
A. B. Bocarslyt
Affiliation:
Frick Chemical Laboratory, Princeton University, Princeton NJ, 08544–5236
Get access

Abstract

Organic-inorganic junctions were formed between porous silicon and various conjugated conducting polymers, poly(3-methylthiophene) and polypyrrole. Schottky type barriers were observed between the conducting polymers in their doped state and p and n-type porous silicon. In their undoped state the conducting polymers behave like p-type semiconductors. Consistent with this, ohmic contacts were observed between undoped conducting polymers and p-type porous silicon while rectifying behavior typical of a p-n junction was observed for conducting polymers deposited onto n-type porous silicon. During characterization of the porous silicon substrate, an investigation of the surface chemistry revealed a strong correspondence between solution pH and the luminescence intensity of porous silicon. Surface titration experiments were performed on p and n-type porous silicon and the results indicate that a monoprotic surface acid with a pKa between 3–4 is a primary component in the luminescence mechanism of porous silicon.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 283: Symposium F – Microcrystalline Semiconductors–Materials Science and Devices , 1992 , 411
Copyright
Copyright © Materials Research Society 1993

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. Bassous, E., Freeman, M., Halbout, J.-M., Iyer, S.S., Kesan, V.P., Munguia, P., Pesarcik, S.F., and Williams, B.L. in Light Emmision from Silicon, edited by Iyer, S.S., Collins, R.T., and Canham, L.T. (Mater. Res. Proc. 256, Pittsburg, PA, 1991) pp. 23–26;Google Scholar
Kalkhoran, N.M., Namavar, F., and Maruska, H.P., Light Emmision from Silicon, 256, Pittsburg, PA, 1991) pp. 89–94;Google Scholar
Richter, A., Steiner, L.P., Kozlowski, F., and Sandmaier, H., Light Emmision from Silicon, 256, Pittsburg, PA, 1991)pp. 209–214;Google Scholar
Koshida, N. and Koyama, H., Light Emmision from Silicon, 256, Pittsburg, PA, 1991), pp. 219–222.Google Scholar
2. Billat, S., Bsiesy, A., Gaspard, F.. Herino, R., Ligeon, M., Muller, F., Romeslain, R., and Vial, J.C., in Light Emmision from Silicon, edited by Iyer, S.S., Collins, R.T., and Canham, L.T. (Mater. Res. Proc. 256, Pittsburg, PA, 1991) pp. 215–218.Google Scholar
3. Frank, A.J.. Mol. Cryst. Liq. Cryst. 83, 1373 (1982).Google Scholar
4. Simon, R.A.. Ricco, R.A., and Wrighton, M.S.. J. Am. Chem. Soc. 104, 2031 (1982).Google Scholar
5. Frank, A.J., and Glenis, S., in Photochemistry and Photoelectrochemistrv of Organic and Inorganic Thin Films, (SPIE, 1436) pp. 50–57.Google Scholar
6. Jozefiak, T.H., Sailor, M.J., Ginsburg, E.J., Gorman, C.B., Lewis, N.S., and Grubbs, R.H. in Photochemistry and Photoelectrochemistry of Organic and Inorganic Thin Films, (SPIE, 1436) pp. 8–19.Google Scholar
7. Gupta, P., Colvin, V.L., and George, S.M., Phys. Rev. B, 37, 8234 (1988).Google Scholar
8. Johns, P.. Odeh, I.M.. Thomas, M.J.K., Tricker, M.J., and Wilson, J.I.B, Phys. Stat. Sol. (b), 105, 49 (1981).Google Scholar
9. Her, R.K., The Chemistry of Silica, (John Wiley & Sons, New York 1979).Google Scholar
10. Gates, B.C.. Katzer, J.R., and Schuit, G.C. A., Chemistry of Catalytic Processes, (McGraw Hill, New York, 1979).Google Scholar
11. Gates, B.C., Catalytic Chemistry, (John Wiley & Sons, New York, 1992).Google Scholar
12. Canham, L.T., and Blackmore, G.W. in Light Emmision from Silicon, edited by Iyer, S.S., Collins, R.T., and Canham, L.T. (Mater. Res. Proc. 256, Pittsburg, PA, 1991) pp. 63–37.Google Scholar
13. Herino, R., Bomchil, G., Baria, K., Bertrand, C., and Ginoux, J.L., J. Electrochem. Soc., 134, 1994 (1987).Google Scholar
14. Robinson, M.B., Dillon, A.C., Haynes, D.A., and George, S.M. in Light Emmision from Silicon, edited by Iyer, S.S., Collins, R.T., and Canham, L.T. (Mater. Res. Proc. 256, Pittsburg, PA, 1991) pp. 17–21.Google Scholar