Skip to main content Accessibility help

Guided Self Assembly of InAs Quantum Dots on a Cleaved Facet

  • Emanuele Uccelli (a1), Dieter Schuh (a2), Jochen Bauer (a3), Max Bichler (a4), Jonathan J. Finley (a5), Matthew Grayson (a6), Gerhard Abstreiter (a7) and Anna Fontcuberta i Morral (a8)...


The long range ordering of epitaxial semiconductor quantum dots (QDs) has been obtained by combing self assembly with the cleaved edge overgrowth technique. The introduction of nanometer thick AlAs stripes on a (110) oriented GaAs surface avoids the misfit dislocation growth mechanism of InAs on GaAs (110) and drives the formation of array of QDs. Atomic Force Microscopy (AFM) investigations highlight that InAs QDs only nucleate in chain like structure on Al-rich regions. Here, we present experimental results that demonstrate the ability to create ordered QDs lattices and discuss the conditions under which preferential growth of QDs on the AlAs stripes occurs.



Hide All
1. Bimberg, D., Grundmann, M. and Ledentsov, N.N., Quantum Dot Heterostructures, (John Wiley and Sons, Chichester, 1999).
2. Nötzel, R. and Ploog, K.H., J. Cryst. Growth 227228, 8 (2001).
3. Kim, H.J., Park, Y.J., Park, Y.M., Kim, E.K. and Kim, T.W., Appl. Phys. Lett. 78, 3253 (2001).
4. Leon, R., Chaparro, S., Johnson, S.R., Navarro, C., Jin, X., Zhang, Y.H., Siegert, J., Marcinkevicius, S., Liao, X.Z. and Zou, J., J. Appl. Phys. 91, 5826 (2002).
5. Bhat, R., Kapon, E., Hwang, D.M., Koza, M.A. and Yun, C.P., J. Cryst. Growth 93, 850 (1988).
6. Gerardot, B.D., Subramanian, G., Minvielle, S., Lee, H., Johnson, J.A., Schoenfeld, W.V., Pine, D., Speck, J.S. and Petroff, P.M., J. Cryst. Growth 236, 647 (2002).
7. Songmuang, R., Kiravittaya, S. and Schmidt, O.G., Appl. Phys. Lett. 82, 2892 (2003).
8. Bauer, J., Schuh, D., Uccelli, E., Schulz, R., Kress, A., Hofbauer, F., Finley, J.J. and Abstreiter, G., Appl. Phys. Lett. 85, 4750 (2004).
9. Pfeiffer, L.. West, K.W., Stormer, H.L., Eisenstein, J.P., Baldwin, K.W., Gershoni, D. and Spector, J., Appl. Phys. Lett. 56, 1697 (1990).
10. Shchukin, V.A., Ledentsov, N.N. and Bimberg, D., Epitaxy of Nanostructures, (Springer-Verlag, Berlin, 2004).
11. Ballet, P., Smathers, J.B., Yang, H., Workman, C.L. and Salamo, G.J., J. Appl. Phys. Lett 90, 481 (2001).
12. Wasserman, D., Lyon, S.A., Hadjipanayi, M., Maciel, A. and Ryan, J.F., Appl. Phys. Lett. 83, 5050 (2003).
13. Lobo, C. and Leon, R., J. Appl. Phys. 83, 4168 (1998).



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