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Thermal Penetration of Gold Nanoparticles into Silicon Dioxide

100%

Ilkiv I., Kotlyar K., Amel'chuk D., Lebedev S., Cirlin G., Bouravleuv A.

We report on an experimental study of the thermal annealing processes under air and nitrogen atmospheres of colloidal Au nanoparticles deposited onto SiO₂/Si(100) samples. It was shown that Au nanoparticles during annealing under ambient conditions could penetrate inside silicon dioxide layers forming pores at that their lengths were found to be dependent on the annealing time. The influence of oxygen on the penetration process is discussed. At the same time, the annealing of Au nanoparticles under nitrogen conditions did not result in the formation of pores.

Light Absorption and Photoluminescence in Quantum Dots and Artificial Molecules

60%

Firsov D., Vorobjev L., Panevin V., Fedosov N., Shalygin V., Samsonenko J., Tonkikh A., Cirlin G., Andreev A., Kryzhanovskaya N., Tarasov I., Pikhtin N., Ustinov V., Hanna S., Seilmeier A., Julien F., Zakharov N., Werner P.

Acta Physica Polonica A

2005

vol. 107

issue 1

158-162

Intraband absorption in n- and p-doped structures with InAs/GaAs quantum dots covered by InGaAs layers is studied both experimentally and theoretically. The absorption cross-section for p-type quantum dots was found to be significantly smaller than that for n-type quantum dots. Interband absorption bleaching under strong interband excitation is found and investigated in undoped quantum dot structures. Structures with artificial molecules were grown. Photoluminescence spectra and transmission electron microscopy images proves the presence of coupled symmetrical quantum dots.

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2 Acta Physica Polonica A

1 2017

1 2005

2 Cirlin G.

1 Amel'chuk D.

1 Andreev A.

1 Bouravleuv A.

1 Fedosov N.

1 Firsov D.

1 Hanna S.

1 Ilkiv I.

1 Julien F.

1 Kotlyar K.

1 Kryzhanovskaya N.

1 Lebedev S.

1 Panevin V.

1 Pikhtin N.

1 Samsonenko J.

1 Seilmeier A.

1 Shalygin V.

1 Tarasov I.

1 Tonkikh A.

1 Ustinov V.

1 Vorobjev L.

1 Werner P.

1 Zakharov N.

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Thermal Penetration of Gold Nanoparticles into Silicon Dioxide

Light Absorption and Photoluminescence in Quantum Dots and Artificial Molecules