Skip to main content Accessibility help
×
Home

The Enabling Role of Surface Passivation in Visible Photoluminescence from Si Nanoparticles

  • A.A. Seraphin (a1), E. Werwa (a1), L.A. Chiu (a2) and K.D. Kolenbrander (a1)

Abstract

Silicon nanocrystallites have been studied in a variety of passivating environments to study the role of surface passivation in visible light emission from the particles. Thin films of Si nanocrystallites have been deposited by a laser ablation supersonic expansion technique. The films show significant room temperature photoluminescence (PL) behavior only after processing to achieve surface passivation. Passivation effects on light emission are studied through PL emission spectroscopy on clusters in the gas phase, as well as films in a variety of passivating media. The intensity of PL emission seems to scale with the extent of surface passivation, but the specific nature of the passivating species is not critical in defining the wavelength of emitted light.

Copyright

References

Hide All
1 Canham, L., MRS Bulletin XVIH (7), 22 (1993).
2 Littau, K.A., Szajowski, P.J., Muller, A.J., Kortan, A.R., and Brus, L.E., J. Phys. Chem. 97, 1227 (1993).
3 Fauchet, P.M., Tsai, C.C., Canham, L.T., Shimizu, I., and Aoyagi, Y., eds. Microcrystalline Semiconductors: Materials Science & Devices, Mater. Res. Soc. Proc. 283, (Materials Research Society, Pittsburgh, PA, 1993).
4 Pankove, J.I., Optical Processes in Semiconductors, 2nd ed. (Dover Publications, New York, 1975), p. 164.
5 Chiu, L.A., Seraphin, A.A., and Kolenbrander, K.D., J. Electron. Mater, (in press).
6 Werwa, E., Seraphin, A.A., Chiu, L.A., Zhou, C., and Kolenbrander, K.D., Appl. Phys. Lett. (submitted).
7 Takgahara, T. and Takeda, K., Phys. Rev. B 46, 15578 (1992).
8 Ryan, J.L., MacKenzie, J.D., and Kolenbrander, K.D. (to be published).
9 Chiu, L.A., Seraphin, A.A., and Kolenbrander, K.D., 1993 MRS Fall Meeting, Symposium M: Growth, Processing, and Characterization of Semiconductor Heterostructures, (in press).
10 Li, K.-H., Tsai, C., Shih, S., Hsu, T., Kwong, D.L., and Campbell, J. C., J. Appl. Phys. 72 (8), 3816 (1992).
11 Petrova-Koch, V., Muschik, T., Kux, A., Meyer, B.K., Koch, F., and Lehmann, V., Appl. Phys. Lett. 61, 943 (1992).
12 Brus, L., Appl. Phys. A 53, 456 (1991).

The Enabling Role of Surface Passivation in Visible Photoluminescence from Si Nanoparticles

  • A.A. Seraphin (a1), E. Werwa (a1), L.A. Chiu (a2) and K.D. Kolenbrander (a1)

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed