Enhancement of exciton binding energies in quantum wires and quantum dots

Europhysics Letters

Volumn 39, Issue 4, 1997, Pages 453-458

  Bayer, M ^a   Walck, S ^b   Reinecke, T L ^a,b,c   Forchel, A ^a  

^a UNIVERSITY OF WÜRZBURG   (Germany)

^b NAVAL RESEARCH LABORATORY   (United States)

^c MAX PLANCK INSTITUT FÜR FESTKÖRPERFORSCHUNG   (Germany)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0031571431     PISSN: 02955075     EISSN: None     Source Type: Journal    
DOI: 10.1209/epl/i1997-00376-7     Document Type: Article

References (35)

1. See, for example, MILLER R. C. and KLEINMAN D. A., J. Lumin., 30 (1985) 520.
2. See, for example, MILLER R. C. et al., Phys. Rev. B, 24 (1981) 1124; BASTARD G. et al., Phys. Rev. B, 26 (1982) 1974; GREENE R. L. et al., Phys. Rev. B, 29 (1983) 1807.
3. See, for example, MILLER R. C. et al., Phys. Rev. B, 24 (1981) 1124; BASTARD G. et al., Phys. Rev. B, 26 (1982) 1974; GREENE R. L. et al., Phys. Rev. B, 29 (1983) 1807.
4. See, for example, MILLER R. C. et al., Phys. Rev. B, 24 (1981) 1124; BASTARD G. et al., Phys. Rev. B, 26 (1982) 1974; GREENE R. L. et al., Phys. Rev. B, 29 (1983) 1807.
5. KAYANUMA Y., Phys. Rev. B, 44 (1991) 13085.
6. DEGANI M. H. and HIPÓLITO O., Phys. Rev. B, 35 (1987) 9345.
7. BROWN J. W. and SPECTOR H. N., Phys. Rev. B, 35 (1987) 3009.
8. CHRISTOL S., LEFEVBRE P. and MATHIEU H., J. Appl. Phys., 74 (1992) 5626.
9. TANAKA T., ARAKAWA Y. and BAUER G. E. W., Phys. Rev. B, 50 (1994) 7719.
10. BRYANT G. W., Phys. Rev. B, 37 (1988) 8763.
11. TAKAGAHARA T., Phys. Rev. B, 39 (1989) 10203; 47 (1993) 4569.
12. TAKAGAHARA T., Phys. Rev. B, 39 (1989) 10203; 47 (1993) 4569.
13. GOVOROV A. O. and CHAPLIK A. V., Sou. Phys. JETP, 72 (1991) 1037.
14. HALONEN V., CHAKRABORTY T. and PIETILÄINEN P., Phys. Rev. B, 45 (1992) 5980.
15. QUE W., Phys. Rev. B, 45 (1992) 11036.
16. LEGOFF S. and STÉBÉ B., Phys. Rev. B, 47 (1993) 1383.
17. JAZIRI S., BASTARD G. and BENNACEUR R., Semicond. Sci. Technol., 8 (1993) 670.
18. NOMURA S., SEGAWA Y. and KOBAYASHI T., Phys. Rev. B, 49 (1994) 13571.
19. KOHL M., HEITMANN D., GRAMBOW P. and PLOOG K., Phys. Rev. Lett., 63 (1989) 2124.
20. NAGANUME Y., ARAKAWA Y., TSUKAMOTO S., NISHIOKA M., SASAKI S. and MIURA N., Phys. Rev. Lett., 69 (1992) 2963.
21. RINALDI R. et al., Phys. Rev. Lett., 73 (1994) 2899.
22. SOMEYA T., AKIYAMA H. and SAKAKI H., Phys. Rev. Lett., 74 (1995) 3664; 76 (1996) 2965.
23. SOMEYA T., AKIYAMA H. and SAKAKI H., Phys. Rev. Lett., 74 (1995) 3664; 76 (1996) 2965.
24. NAGAMUNE Y., NISHIOKA M., TSUKAMOTO S. and ARAKAWA Y., Appl. Phys. Lett., 64 (1994) 2499.
25. In quantum wells and wires the exciton binding energy is the difference in energy between an interacting electron-hole pair state and the corresponding electron-hole continuum. For the quantum dots the binding energy is taken to be the difference between the interacting electron-hole pair state energy and the energies of the corresponding single-particle states.
26. GRÉUS CH., BUTOV L., DAIMINGER F., FORCHEL A., KNIPP P.A. and REINECKE T.L., Phys. Rev. B, 47 (1993) 7626; GRÉUS CH., SPIEGEL R., KNIPP P.A., REINECKE T.L., FALLER F. and FORCHEL A., Phys. Rev. B, 49 (1994) 5753.
27. GRÉUS CH., BUTOV L., DAIMINGER F., FORCHEL A., KNIPP P.A. and REINECKE T.L., Phys. Rev. B, 47 (1993) 7626; GRÉUS CH., SPIEGEL R., KNIPP P.A., REINECKE T.L., FALLER F. and FORCHEL A., Phys. Rev. B, 49 (1994) 5753.
28. BAYER M., FORCHEL A., ITSKEVICH I. E., REINECKE T. L., KNIPP P. A., GRÉUS CH., SPIEGEL R. and FALLER F., Phys. Rev. B, 49 (1994) 14782; BAYER M., SCHMIDT A., FORCHEL A., FALLER F., REINECKE T. L., KNIPP P. A, DREMIN A. A. and KULAKOVSKII V. D., Phys. Rev. Lett., 74 (1995) 3439.
29. BAYER M., FORCHEL A., ITSKEVICH I. E., REINECKE T. L., KNIPP P. A., GRÉUS CH., SPIEGEL R. and FALLER F., Phys. Rev. B, 49 (1994) 14782; BAYER M., SCHMIDT A., FORCHEL A., FALLER F., REINECKE T. L., KNIPP P. A, DREMIN A. A. and KULAKOVSKII V. D., Phys. Rev. Lett., 74 (1995) 3439.
30. This approach was found to give good values for the exciton binding energy in ref. [18], where the results were compared both with the results of two-photon absorption experiments and also with detailed calculations for the quantum wire of a single size.
31. TAGUCHI S., GOTO T., TAKEDA M. and KIDO G., Jpn. J. Phys. Soc., 57 (1988) 3256.
32. Exciton binding energies have been found to be relatively insensitive to the effects of alloy disorder as was shown in ref. [27]. This is presumably due to alloy potential fluctuations occurring on scales smaller than the exciton Bohr radius. It might be noted that the systematic dependences found here for the exciton binding energies and the fact that they are in good agreement with calculations tend to confirm that the effects of alloy fluctuations on the binding energies are small.
33. LAI S. T. and KLEIN M. V., Phys. Rev. B, 29 (1994) 3217.
34. The dielectric constant for the present material system was obtained by averaging low-temperature values for GaAs and InAs [29].
35. LANDOLT-BÖRNSTEIN. Numerical Data and Functional Relationships in Science and Technology, edited by O. MADELUNG Vol. III/17a, (Springer-Verlag, Berlin) 1982.