Hostname: page-component-78c5997874-g7gxr Total loading time: 0 Render date: 2024-11-06T05:18:30.418Z Has data issue: false hasContentIssue false

Confinement and Fluorescence of Aromatic Molecules in Microporous Amorphous Superlattices

Published online by Cambridge University Press:  25 February 2011

C. B. Roxlo
Affiliation:
Exxon Research and Engineering Company, Corporate Research, Clinton Township, Route 22 East, Annandale, NJ 08801
P. Mitra
Affiliation:
Exxon Research and Engineering Company, Corporate Research, Clinton Township, Route 22 East, Annandale, NJ 08801
H. W. Deckman
Affiliation:
Exxon Research and Engineering Company, Corporate Research, Clinton Township, Route 22 East, Annandale, NJ 08801
B. Abeles
Affiliation:
Exxon Research and Engineering Company, Corporate Research, Clinton Township, Route 22 East, Annandale, NJ 08801
P. P. Wong
Affiliation:
Exxon Research and Engineering Company, Corporate Research, Clinton Township, Route 22 East, Annandale, NJ 08801
Get access

Abstract

We have investigated molecular confinement in materials with nanometer sized pores, fabricated from amorphous superlattices of a-Si:H/a-SiOx:H, using 1,10-bis(1-pyrenyl)decane as a fluorescent probe. In large (46 Å) pores, the emission and excitation spectra and their time dependence are similar to microcrystalline material, showing the presence of molecules aggregated in the ground state. This dimer emission decreases sharply as the pore size is decreased, showing that the minimum size for aggregate formation is about 20 Å.

Type
Articles
Copyright
Copyright © Materials Research Society 1987

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] Deckman, H. W., Abeles, B., Dunsmuir, J. H. and Roxlo, C. B., this proceedings.Google Scholar
[2] Roxlo, C. B., Deckman, H. W. and Abeles, B., Phys. Rev. Lett. 57, 2462 (1986).CrossRefGoogle Scholar
[3] Kern, W. and Puotinen, D. A., RCA Review 31, 187 (1970).Google Scholar
[4] Kalyanasundaram, K. and Thomas, J. K., J. Amer. Chem. Soc. 99, 2039 (1977).CrossRefGoogle Scholar
[5] Zachariasse, K. and Kcfnule, W., Z. Phys. Chem. (Wiesbaden) 101, 267 (1976).CrossRefGoogle Scholar
[6] Birks, J. B., Photophysics of Aromatic Molecules, Wiley-Interscience, London (1969).Google Scholar
[7] Bauer, R. K., deMayo, P., Ware, W. R. and Wu, K. W., J. Phys. Chem. 86, 3781 (1982); S. L. Suib and A. Kostapapas, J. Am. Chem. Soc. 106 7705 (1984).CrossRefGoogle Scholar