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Martin-Luther-Universität
Interdisziplinäres Zentrum für Materialwissenschaften
Nanotechnikum Weinberg
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D-06120 Halle, Germany
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Abstracts

V. G. Talalaev, G. E. Cyrlin, L. I. Goraj, B. V. Novikov, M. E. Labzovskaja, J. W. Tomm, P. Werner, B. Fuhrmann, J. Schilling, P. N. Racec
Vlijanie nanomostikov na spektr izlutschenija tunnel'noj pary kvantovaja totschka - kvantovaja jama.
Fiz. teh. poluprov. 48, 9 (2014), 1209-1216

The emission in narrow spectral range of 950?1000nm has been produced by the optical transition NB between experimentally and theoretically observed hybrid states of the InGaAs system: quantum dot?nanobridge?quantum well. Luminescent experiments show that the oscillator strength of the new transition significantly grows in the electric built-in field of pin-junction. In the weak current regime in the system the NB transition is the main channel of electroluminescence. At the current density > 10 A · cm?2 the nanobridge ?burning? is observed, after that the system transforms into a ?quasiclassical? tunnel pair of quantum dot and quantum well separated by barrier.

Keywords: nano; devices; quantum dots; quantum wells; electroluminescence
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