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  • Original paper
  • Open Access

Temperature dependent optical properties of single, hierarchically self-assembled GaAs/AlGaAs quantum dots

Nanoscale Research Letters20061:172

  • Published:


We report on the experimental observation of bright photoluminescence emission at room temperature from single unstrained GaAs quantum dots (QDs). The linewidth of a single-QD ground-state emission (≈ 8.5 meV) is comparable to the ensemble inhomogeneous broadening (≈ 12.4 meV). At low temperature (T ≤ 40 K) photon correlation measurements under continuous wave excitation show nearly perfect single-photon emission from a single GaAs QD and reveal the single photon nature of the emitted light up to 77 K. The QD emission energies, homogeneous linewidths and the thermally activated behavior as a function of temperature are discussed.


  • GaAs quantum dots
  • Hierarchical selfassembly
  • Single dot spectroscopy
  • Room temperature luminescence
  • Photon correlation
  • 42.50.Ar
  • 78.55.Cr
  • 78.67.Hc




The authors would like to thank J. Kuhl for helpful discussions and K. v. Klitzing for his interest and support. This work was financially supported by the BMBF (01BM459), Deutsche Forschungsgemeinschaft (DFG) (Research group:Positioning of single nanostructures-single quantum devices), and DFG (Quantum Optics in Semiconductor Nanostructures research group).

Authors’ Affiliations

Max-Planck-Institut für Festkörperforschung, Heisenbergstrasse 1, D-70569 Stuttgart, Germany
5. Physikalisches Institut, Universität Stuttgart, Pfaffenwaldring 57, D-70550, Stuttgart, Germany


  1. Gérard JM, Barrier D, Marzin JY, Kuszelewicz R, Manin L, Costard E, Thierry-Mieg V, Rivera T: Appl. Phys. Lett.. 1996, 69: 449. 10.1063/1.118135View ArticleGoogle Scholar
  2. Gérard JM, Gayral B: J. Lightwave Technol.. 1999, 17: 2089. 10.1109/50.802999View ArticleGoogle Scholar
  3. Solomon GS, Pelton M, Yamamoto Y: Phys. Rev. Lett.. 2001, 86: 3903. COI number [1:CAS:528:DC%2BD3MXivFWltLo%3D] 10.1103/PhysRevLett.86.3903View ArticleGoogle Scholar
  4. Benyoucef M, Ulrich SM, Michler P, Wiersig J, Jahnke F, Forchel A: New J. Phys.. 2004, 6: 91. 10.1088/1367-2630/6/1/091View ArticleGoogle Scholar
  5. Michler P, Kiraz A, Becher C, Schoenfeld WV, Petroff PM, Zhang L, Hu E, Imamoğlu A: Science. 2000, 290: 2282. COI number [1:CAS:528:DC%2BD3cXptFSnu7s%3D] 10.1126/science.290.5500.2282View ArticleGoogle Scholar
  6. Santori C, Pelton M, Solomon G, Dale Y, Yamamoto Y: Phys. Rev. Lett.. 2001, 86: 1502. COI number [1:CAS:528:DC%2BD3MXht1OnsLs%3D] 10.1103/PhysRevLett.86.1502View ArticleGoogle Scholar
  7. Rastelli A, Stufler S, Schliwa A, Songmuang R, Manzano C, Costantini G, Kern K, Zrenner A, Bimberg D, Schmidt OG: Phys. Rev. Lett.. 2004, 92: 166104. COI number [1:STN:280:DC%2BD2c3mvF2ruw%3D%3D] 10.1103/PhysRevLett.92.166104View ArticleGoogle Scholar
  8. Rastelli A, Songmuang R, Schmidt OG: Physica E. 2004, 23: 384. COI number [1:CAS:528:DC%2BD2cXlvFCru7Y%3D] 10.1016/j.physe.2004.02.005View ArticleGoogle Scholar
  9. Schildermans N, Hayne M, Moshchalkov VV, Rastelli A, Schmidt OG: Phys. Rev. B. 2005, 72: 115312. 10.1103/PhysRevB.72.115312View ArticleGoogle Scholar
  10. Y. Sidor, B. Partoens, F.M. Peeters, N. Schildermans, A. Rastelli, O.G. Schmidt, Phys. Rev. B 72, 155334 (2006)View ArticleGoogle Scholar
  11. Li SS, Chang K, Xia J-B: Phys. Rev. B. 2005, 71: 155301. 10.1103/PhysRevB.71.155301View ArticleGoogle Scholar
  12. Kiravittaya S, Songmuang R, Jin-Phillipp NY, Panyakeow S, Schmidt OG: J. Cryst. Growth. 2003, 251: 258. COI number [1:CAS:528:DC%2BD3sXitlWls7g%3D] 10.1016/S0022-0248(02)02475-2View ArticleGoogle Scholar
  13. Schmidt OG, Rastelli A, Kar GS, Songmuang R, Kiravittaya S, Stoffel M, Denker U, Stufler S, Zrenner A, Grützmacher D, Nguyen BY, Wennekers P: Physica E. 2004, 25: 280. COI number [1:CAS:528:DC%2BD2cXptl2htr8%3D] 10.1016/j.physe.2004.06.027View ArticleGoogle Scholar
  14. Matsuda K, Ikeda K, Saiki T, Tsuchiya H, Saito H, Nishi K: Phys. Rev. B. 2001, 63: 121304(R).View ArticleGoogle Scholar
  15. Bayer M, Forchel A: Phys. Rev. B. 2002, 65: 041308(R).View ArticleGoogle Scholar
  16. Le Ru EC, Fack J, Murray R: Phys. Rev. B. 2003, 67: 245318. 10.1103/PhysRevB.67.245318View ArticleGoogle Scholar
  17. Peter E, Hours J, Senellart P, Vasanelli A, Cavanna A, Bloch J, Gérard JM: Phys. Rev. B. 2004, 69: 041307(R). 10.1103/PhysRevB.69.041307View ArticleGoogle Scholar
  18. Sebald K, Michler P, Passow T, Hommel D, Bacher G, Forchel A: Appl. Phys. Lett.. 2002, 81: 2920. COI number [1:CAS:528:DC%2BD38XnvVWrsLw%3D] 10.1063/1.1515364View ArticleGoogle Scholar
  19. Mirin R: Appl. Phys. Lett.. 2004, 84: 1260. COI number [1:CAS:528:DC%2BD2cXhsVyltL8%3D] 10.1063/1.1650032View ArticleGoogle Scholar
  20. Malko A, Oberli DY, Baier MH, Pelucchi E, Michelini F, Karlsson KF, Dupertuis M-A, Kapon E: Phys. Rev. B. 2005, 72: 195332. 10.1103/PhysRevB.72.195332View ArticleGoogle Scholar
  21. A. Rastelli, S. Kiravittaya, L. Wang, C. Bauer, O.G. Schmidt, Physica E 32, 29 (2006)View ArticleGoogle Scholar
  22. Hanbury Brown R, Twiss RQ: Nature (London). 1956, 178: 1447. 10.1038/1781447a0View ArticleGoogle Scholar
  23. G. Ortner, M. Schwab, M. Bayer, R. Passler, S. Fafard, Z. Wasilewski, P. Hawrylak, A. Forchel, Phys. Rev. B 72, 085328 (2005)View ArticleGoogle Scholar
  24. Urbaszek B, McGhee EJ, Krüger M, Warburton RJ, Karrai K, Amand T, Gerardot BD, Petroff PM, Garcia JM: Phys. Rev. B. 2004, 69: 035304. 10.1103/PhysRevB.69.035304View ArticleGoogle Scholar
  25. Besombes L, Kheng K, Marsal L, Mariette H: Phys. Rev. B. 2001, 63: 155307. 10.1103/PhysRevB.63.155307View ArticleGoogle Scholar
  26. Moehl S, Tinjod F, Kheng K, Mariette H: Phys. Rev. B. 2004, 69: 245318. 10.1103/PhysRevB.69.245318View ArticleGoogle Scholar
  27. Gammon D, Rudin S, Reinecke TL, Katzer DS, Kyono CS: Phys. Rev. B. 1995, 51: 16785. COI number [1:CAS:528:DyaK2MXmsVCht74%3D] 10.1103/PhysRevB.51.16785View ArticleGoogle Scholar
  28. Kammerer C, Cassabois G, Voisin C, Perrin M, Delalande C, Roussignol P, Gérard JM: Appl. Phys. Lett.. 2002, 81: 2737. COI number [1:CAS:528:DC%2BD38XnsFyqur4%3D] 10.1063/1.1510158View ArticleGoogle Scholar
  29. Valerini D, Creti A, Lomascolo M, Manna L, Cingolani R, Anni M: Phys. Rev. B. 2005, 71: 235409. 10.1103/PhysRevB.71.235409View ArticleGoogle Scholar
  30. Borri P, Langbein W, Hvam JM, Martelli F: Phys. Rev. B. 1999, 60: 4505. COI number [1:CAS:528:DyaK1MXltFGrtbg%3D] 10.1103/PhysRevB.60.4505View ArticleGoogle Scholar
  31. Borri P, Langbein W, Schneider S, Woggon U, Sellin RL, Ouyang D, Bimberg D: Phys. Rev. Lett.. 2001, 87: 157401. COI number [1:STN:280:DC%2BD3MrjsVyqtQ%3D%3D] 10.1103/PhysRevLett.87.157401View ArticleGoogle Scholar
  32. Ghosh S, Arora BM, Kim S-J, Noh J-H, Asahi H: J. Appl. Phys.. 1999, 85: 2687. COI number [1:CAS:528:DyaK1MXhtF2gs7g%3D] 10.1063/1.369585View ArticleGoogle Scholar
  33. The total barrier is the energy difference between the QD ground state and the quantum well emissionGoogle Scholar
  34. Yang W, Lowe-Webb RR, Lee H, Sercel PC: Phys. Rev. B. 1997, 56: 13314. COI number [1:CAS:528:DyaK2sXnsFensLw%3D] 10.1103/PhysRevB.56.13314View ArticleGoogle Scholar
  35. Brouri R, Beveratos A, Poizat J-P, Grangier P: Opt. Lett.. 2000, 25: 1294. COI number [1:CAS:528:DC%2BD3cXmvVSltbk%3D]View ArticleGoogle Scholar


© to the authors 2006