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Importance of Quantum Dots (QDs) for the science and technology has been recently acknowledged by Nobel committee,
The Nobel prize winners produced and studied QDs in glasses and colloids. We are producing epitaxial version of QDs witch narrower spectral lines and easily can be studied individually.
Consequently, they can be used for various sophistical experiments, e.g for sensing nuclear spins in a individual II-VI QDs:
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"Direct measurement of hyperfine shifts and radiofrequency manipulation of the nuclear spins in individual CdTe/ZnTe quantum dots",
G. Ragunathan, J. Kobak, G. Gillard, W. Pacuski, K. Sobczak, J. Borysiuk, M. S. Skolnick, E. A. Chekhovich,
Phys. Rev. Lett., 122, 096801 (2019).
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We were also interested in various aspects of anisotropy of QDs:
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"Effect of electron-hole separation on optical properties of individual Cd(Se,Te) quantum dots",
M. Ściesiek, J. Suffczyński, W. Pacuski, M. Parlińska-Wojtan, T. Smoleński, P. Kossacki, and A. Golnik,
Phys. Rev. B 93, 195313 (2016).
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"Anisotropy of in-plane hole g factor in CdTe/ZnTe quantum dots",
A. Bogucki, T. Smoleński, M. Goryca, T. Kazimierczuk, J. Kobak, W. Pacuski, P. Wojnar, and P. Kossacki,
Phys. Rev. B 93, 235410 (2016).
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"Comparison of magneto-optical properties of various excitonic complexes in CdTe and CdSe self-assembled quantum dots",
J. Kobak, T. Smoleński, M. Goryca, J.-G. Rousset, W. Pacuski, A. Bogucki, K. Oreszczuk, P. Kossacki, M. Nawrocki, A. Golnik, J. Płachta, P. Wojnar, C. Kruse, D. Hommel, M. Potemski, T. Kazimierczuk,
J. Phys.: Condens. Matter 28, 265302 (2016).
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"Optical study of electron-electron exchange interaction in CdTe/ZnTe quantum dots",
T. Kazimierczuk, T. Smoleński, J. Kobak, M. Goryca, W. Pacuski, A. Golnik, K. Fronc, Ł. Kłopotowski, P. Wojnar, P. Kossacki,
Phys. Rev. B 87, 195302 (2013).
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When we opened MBE lab at UW we published a few papers about growth and characterization of epitaxial QDs:
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"Ultra low density of CdTe quantum dots grown by MBE",
J. Kobak, J.-G. Rousset, R. Rudniewski, E. Janik, T. Słupiński, P. Kossacki, A. Golnik, W. Pacuski,
Journal of Crystal Growth 378, 274 (2013). |
"Optical Properties of CdTe QDs in Proximity to a Surface"
J. Piwowar, J. Papierska, K. Sawicki, J. Kobak, W. Pacuski, A. Golnik, P. Kossacki, J. Suffczyński,
Acta Physica Polonica A 124, 795 (2013). 
"Optical Properties of CdTe QDs Formed Using Zn Induced Reorganization",
J. Kobak, W. Pacuski, T. Jakubczyk, T. Kazimierczuk, A. Golnik, K. Frank, A. Rosenauer, C.
Kruse, D. Hommel, J.A. Gaj
Acta Physica Polonica A 119, 627 (2011).
"Deep Levels Induced by CdTe/ZnTe Quantum Dots",
E. Zielony, E. Placzek-Popko, A. Roznicka, Z. Gumienny, J. Szatkowski, P. Dyba, W. Pacuski, C. Kruse,
D. Hommel, M. Guziewicz
Acta Physica Polonica A 119, 630 (2011).
Nowadays, we use QDs as elements of more complex structures including individual dopants and photon confinement, see Solotronics and
Micropillars.
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