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Nanotechnikum |
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Martin-Luther-Universität
Interdisziplinäres Zentrum für Materialwissenschaften
Nanotechnikum Weinberg
Heinrich-Damerow-Str. 4, D-06120 Halle, Germany
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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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