Intentionally positioned self-assembled InAs quantum dots in an electroluminescent p–i–n junction diode

M. Mehta, D. Reuter, A. Melnikov, A.D. Wieck, S. Michaelis de Vasconcellos, T. Baumgarten, A. Zrenner, C. Meier, Physica E: Low-Dimensional Systems and Nanostructures 42 (2010) 2749–2752.

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Abstract
An intentional positioning of optically active quantum dots using site-selective growth by a combination of molecular beam epitaxy (MBE) and focused ion beam (FIB) implantation in an all-ultra-high-vacuum (UHV) setup has been successfully demonstrated. A square array of periodic holes on GaAs substrate was fabricated with FIB of 30 keV ions followed by an in situ annealing step. Subsequently, the patterned holes were overgrown with an optimized amount of InAs in order to achieve site-selective growth of the QDs on the patterned holes. Under well-optimized conditions, a selectivity of single quantum dot growth in the patterned holes of 52% was achieved. Thereafter, carrier injection and subsequent radiative recombination from the positioned InAs/GaAs self-assembled QDs was investigated by embedding the QDs in the intrinsic part of a GaAs-based p–i–n junction device. Electroluminescence spectra taken at 77 K show interband transitions up to the fifth excited state from the QDs.
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Journal Title
Physica E: Low-dimensional Systems and Nanostructures
Volume
42
Issue
10
Page
2749-2752
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Mehta M, Reuter D, Melnikov A, et al. Intentionally positioned self-assembled InAs quantum dots in an electroluminescent p–i–n junction diode. Physica E: Low-dimensional Systems and Nanostructures. 2010;42(10):2749-2752. doi:10.1016/j.physe.2009.12.053
Mehta, M., Reuter, D., Melnikov, A., Wieck, A. D., Michaelis de Vasconcellos, S., Baumgarten, T., … Meier, C. (2010). Intentionally positioned self-assembled InAs quantum dots in an electroluminescent p–i–n junction diode. Physica E: Low-Dimensional Systems and Nanostructures, 42(10), 2749–2752. https://doi.org/10.1016/j.physe.2009.12.053
@article{Mehta_Reuter_Melnikov_Wieck_Michaelis de Vasconcellos_Baumgarten_Zrenner_Meier_2010, title={Intentionally positioned self-assembled InAs quantum dots in an electroluminescent p–i–n junction diode}, volume={42}, DOI={10.1016/j.physe.2009.12.053}, number={10}, journal={Physica E: Low-dimensional Systems and Nanostructures}, publisher={Elsevier BV}, author={Mehta, Minisha and Reuter, Dirk and Melnikov, Alexander and Wieck, Andreas D. and Michaelis de Vasconcellos, Steffen and Baumgarten, Tim and Zrenner, Artur and Meier, Cedrik}, year={2010}, pages={2749–2752} }
Mehta, Minisha, Dirk Reuter, Alexander Melnikov, Andreas D. Wieck, Steffen Michaelis de Vasconcellos, Tim Baumgarten, Artur Zrenner, and Cedrik Meier. “Intentionally Positioned Self-Assembled InAs Quantum Dots in an Electroluminescent p–i–n Junction Diode.” Physica E: Low-Dimensional Systems and Nanostructures 42, no. 10 (2010): 2749–52. https://doi.org/10.1016/j.physe.2009.12.053.
M. Mehta et al., “Intentionally positioned self-assembled InAs quantum dots in an electroluminescent p–i–n junction diode,” Physica E: Low-dimensional Systems and Nanostructures, vol. 42, no. 10, pp. 2749–2752, 2010.
Mehta, Minisha, et al. “Intentionally Positioned Self-Assembled InAs Quantum Dots in an Electroluminescent p–i–n Junction Diode.” Physica E: Low-Dimensional Systems and Nanostructures, vol. 42, no. 10, Elsevier BV, 2010, pp. 2749–52, doi:10.1016/j.physe.2009.12.053.

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