Temporal Evolution of Multi-Carrier Complexes in Single GaN/AlGaN Quantum Dots

• Authors: K. Surowiecka , A. Wysmołek , R. Stępniewski , R. Bożek , K. Pakuła , J. Baranowski
• Languages of publication: EN

Abstracts

EN

Microphotoluminescence of low-density GaN/Al_xGa_{1-x}N quantum dots grown by metal-organic vapor phase epitaxy using in situ etching of AlGaN is presented. The narrow lines in the microphotoluminescence spectra due to the single quantum dots are observed. Both energy and intensity of these lines show temporal fluctuations. Statistical analysis based on the correlation matrix allowed us to identify objects, which are affected by photo-induced electric field fluctuations. Relations between emission lines participating in the spectrum are discussed.

Keywords

EN

78.55.Cr; 78.67.Hc

Discipline

• 78.55.Cr: III-V semiconductors
• 78.67.Hc: Quantum dots

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2005
• Volume: 108
• Issue: 5
• Pages: 879-884

Dates

published

2005-11

received

2005-06-04

Contributors

author

K. Surowiecka

• Institute of Experimental Physics, Warsaw University, Hoża 69, 00-681 Warsaw, Poland

author

A. Wysmołek

• Institute of Experimental Physics, Warsaw University, Hoża 69, 00-681 Warsaw, Poland

author

R. Stępniewski

• Institute of Experimental Physics, Warsaw University, Hoża 69, 00-681 Warsaw, Poland

author

R. Bożek

• Institute of Experimental Physics, Warsaw University, Hoża 69, 00-681 Warsaw, Poland

author

K. Pakuła

• Institute of Experimental Physics, Warsaw University, Hoża 69, 00-681 Warsaw, Poland

author

J. Baranowski

• Institute of Experimental Physics, Warsaw University, Hoża 69, 00-681 Warsaw, Poland

References

• 1. K. Tachibana, T. Someya, Y. Arakawa, Appl. Phys. Lett., 74, 383, 1999
• 2. B. Chwalisz, A. Wysmolek, R. Bozek, R. Stepniewski, K. Pakua, P. Kossacki, A. Golnik, J.M. Baranowski, Acta Phys. Pol. A, 105, 517, 2004
• 3. K. Pakula, R. Bozek, K. Surowiecka, R. Stepniewski, A. Wysmolek, J.M. Baranowski, to be published
• 4. K. Pakula, R. Bozek, J.M. Baranowski, J. Jasiński, Z. Liliental-Weber, J. Cryst. Growth, 267, 1, 2004
• 5. B. Pattron, P. Langbein, U. Woggon, Phys. Rev. B, 68, 125316, 2003
• 6. V. Turck, S. Rodt, O. Stier, R. Heitz, R. Engelhardt, U.W. Pohl, D. Bimberg, R. Steingruber, Phys. Rev. B, 61, 9944, 2000
• 7. N. Panev, M.-E. Pistol, J. Persson, W. Seifert, L. Samuelson, Phys. Rev. B, 70, 073309, 2004
• 8. K. Kowalik, O. Krebs, A. Kudelski, A. Golnik, A. Lemaître, P. Senellart, G. Karczewski, J. Kossut, J. Gaj, P. Voisin, Acta Phys. Pol. A, 106, 177, 2004

Identifiers

DOI

10.12693/APhysPolA.108.879