Investigation of Chemical Adsorbate Effects on Blue and Red Emitting Porous Silicon Samples

Abstract

We have investigated the sensitivity of blue (PLmax = 480 nm) and red (PLmax = 660 nm) emitting porous silicon samples to various chemical adsorbates. Steady-state and time-resolved photoluminescence measurements and FTIR spectroscopy were employed to characterize the photophysical and optical effects induced by chemical exposure. The red samples, which are hydrogen terminated, exhibit quenching and recovery of photoluminescence intensity and broadening of the Si-Hx stretch bands upon exposure to liquid methanol. This behavior is attributed to the ability of the Si-Hx specie on the surface of the PSI to interact with the solvent molecules which temporarily traps the electrons and causes PL loss and Si-Hx broadening. The blue samples, which are oxygen terminated, display similar sensitivity to methanol. This sensitivity is attributed to the solvent’s ability to change the surface passivation and thereby introduce competitive radiative and nonradiative recombination channels. The origin of the blue PL is discussed.

This is a preview of subscription content, access via your institution.

References

  1. 1.

    L. T. Canham, Appl. Phys. Lett. 57, 1046 (1990).

    CAS  Article  Google Scholar 

  2. 2.

    J. M. Lauerhaas, G. M. Credo, J. L. Heinrich and M. J. Sailor, J. Am. Chem. Soc. 114, 1911 (1992)

    CAS  Article  Google Scholar 

  3. 3.

    J. M. Lauerhaas and M. J. Sailor, Science 261, 1567 (1993)

    CAS  Article  Google Scholar 

  4. 4.

    J. L. Coffer, S. C. Lilley, R. A. Martin and L. A. Files-Sesler, J. Appl. Phys. 74, 2094 (1993).

    CAS  Article  Google Scholar 

  5. 5.

    K. J. Nash, P. D. J. Calcott, L. T. Canham, M. J. Kane and D. Brumhead, J. of Lumin. 60&61, 297 (1994).

    Article  Google Scholar 

  6. 6.

    F. Koch, Mat. Res. Soc. Symp. Proc. 298, 319 (1993).

    CAS  Article  Google Scholar 

  7. 7.

    Petrova-V. Koch, T. Muschik, A. Kux, B. K. Meyer, and F. Koch, Appl. Phys. Lett. 61, 943 (1992).

    Article  Google Scholar 

  8. 8.

    Y. Kanemitsu, T. Masumoto, T. Futagi and H. Mimura, Mat. Res. Soc. Symp. Proc. 298, 205 (1993).

    CAS  Article  Google Scholar 

  9. 9.

    D. Ruter, T. Kunze and W. Bauhofer, Appl. Phys. Lett. 64, 3006 (1994).

    Article  Google Scholar 

  10. 10.

    X. Wang, G. Shi, F. L. Zhang, H. J. Chen, W. Wang, P. H. Hao and X. Y. Hou, Appl. Phys. Lett. 63, 2363 (1993).

    CAS  Article  Google Scholar 

  11. 11.

    X. Y. Hou, G. Shi, W. Wang, F. L. Zhang, P. H. Hao, D. M. Huang and X. Wang, Appl. Phys. Lett. 62, 1097 (1993).

    CAS  Article  Google Scholar 

  12. 12.

    Y. Kanemitsu, T. Futagi, T. Masumoto and H. Mimura, Phys. Rev. B 49, 14732 (1994).

    CAS  Article  Google Scholar 

  13. 13.

    M. K. Lee and K. R. Peng, Appl. Phys. Lett., 62, 3159 (1993).

    CAS  Article  Google Scholar 

  14. 14.

    H. Tamura, M. Ruckschloss, T. Wirschem and S. Veprek, Appl. Phys. Lett. 65, 1537 (1994).

    CAS  Article  Google Scholar 

  15. 15.

    A. J. Kontkiewicz, A. M. Kontkiewicz, J. Siejka, S. Sen, G. Nowak, A. M. Hoff, P. Sakthivel, K. Ahmed, P. Mukherjee, S. Witanachchi and J. Lagowski, Appl. Phys. Lett. 65, 1436 (1994).

    CAS  Article  Google Scholar 

  16. 16.

    L. Tsybeskov, J. Vandyshev and P. M. Fauchet, Phys. Rev. B 49, 7821 (1994).

    CAS  Article  Google Scholar 

  17. 17.

    J. Schultz, J. Adhesion 15, 151 (1983).

    Article  Google Scholar 

  18. 18.

    A. Fojtik and A. Henglein, Chem. Phys. Lett. 221, 363 (1994).

    CAS  Article  Google Scholar 

  19. 19.

    R. M. Vadjikar, B. Jian, P. K. Gupta, R. V. Nandedkar, D. D. Bhawalkar, M. J. Patni, R. Srinivasa and A. N. Chandorkar, Materials Science and Engineering B23, L13 (1994).

    Google Scholar 

  20. 20.

    J. M. Rehm (unpublished results).

  21. 21.

    A. Vankateswata Rao, F. Ozanam and J.-N. Chazalviel, J. Electrochem. Soc. 138, 153 (1991).

    Article  Google Scholar 

  22. 22.

    J. M. Rehm, G. L. McLendon and P. M. Fauchet, Appl. Phys. Lett. (submitted).

  23. 23.

    L. T. Canham, MRS Bulletin 18, 22 (1993).

    Google Scholar 

  24. 24.

    L. Tsybeskov (unpublished results).

Download references

Author information

Affiliations

Authors

Corresponding author

Correspondence to Julie M. Rehm.

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Rehm, J.M., McLendon, G.L., Tsybeskov, L. et al. Investigation of Chemical Adsorbate Effects on Blue and Red Emitting Porous Silicon Samples. MRS Online Proceedings Library 358, 393 (1994). https://doi.org/10.1557/PROC-358-393

Download citation