Skip to main content Accessibility help
×
Home

Cathodoluminescence Spectroscopy For Evaluation Of Defect Passivation In GaSb

  • U. Pal (a1), J. Piqueras (a1), P. S. Dutta (a2), H. L. Bhat (a2), G. C. Dubey (a3), Vikram Kumar (a3) and E. Dieguez (a4)...

Abstract

Cathodoluminescence (CL) technique has been employed to study the optical properties of GaSb after deposition of hydrogenated amorphous silicon (a-Si:H). CL images recorded at various depths in the samples clearly show passivation of extended defects on the surface as well as in the bulk region. The passivation of various recombination centres in the bulk is attributed to formation of hydrogen-impurity complexes by diffusion of hydrogen ions from the plasma. Enhancement in luminescence intensity is seen due to passivation of non-radiative recombination centres. The passivation efficiency is found to improve with increase in a-Si:H deposition temperature.

Copyright

References

Hide All
1. Yacobi, B.G. and Holt, D.B., J. Appl. Phys. 59, p. R1 (1986).
2. Milnes, A.G. and Polyakov, A.Y., Solid State Electronics 36, p. 803 (1993).
3. Dutta, P.S., Bhat, H.L., Sangunni, K.S. and Kumar, Vikram, J. Crystal Growth 141, p. 44 (1994).
4. Dominguez-Adame, F., Piqueras, J. and Fernandez, P., Appl. Phys. Letts. 58, p. 257 (1991).
5. Casey, H.C. Jr. and Jayson, J.S., J. Appl. Phys. 42, p. 2774 (1971).
6. Dutta, P.S., Sangunni, K.S., Bhat, H.L. and Kumar, Vikram, Phys. Rev. B 51, p.2153 (1995).
7. Kanaya, K. and Okayama, S., J. Phys. D 5, p. 43 (1972).
8. Dutta, P.S., Rao, K.S.R. Koteswara, Bhat, H.L. and Kumar, Vikram, Appl. Phys. A 61, p. 149 (1995).

Cathodoluminescence Spectroscopy For Evaluation Of Defect Passivation In GaSb

  • U. Pal (a1), J. Piqueras (a1), P. S. Dutta (a2), H. L. Bhat (a2), G. C. Dubey (a3), Vikram Kumar (a3) and E. Dieguez (a4)...

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