Herrle, Thomas and Haneder, Stephan and Tranitz, Hans-Peter and Reinwald, Matthias and Wegscheider, Werner
Current-induced heating in quantum well and quantum wire intersubband emitter structures.
Applied Physics Letters 91 (20), p. 201105.
We discuss the influence of current-induced heating on the current-voltage (I-V) characteristics and the spectral behavior in quantum well and quantum wire intersubband emitter structures. A conventional quantum cascade laser structure in the AlGaAs/GaAs material system with undoped cladding layers and an undoped active region is examined. This heterostructure serves as a first growth step for quantum wire intersubband emitters fabricated by the cleaved-edge overgrowth technique. We discuss the influence of electrons supplied by a remote delta-silicon doping. Duty-cycle dependent measurements on the quantum wire structures confirm the influence of current-induced heating on the I-V characteristics as well as on the emission spectra.
|Date:||13 November 2007|
|Institutions:|| Physics > Institute of Experimental and Applied Physics > Retired Professors > Group Werner Wegscheider|
|73.63.Hs; 73.63.Kv; 78.67.De; 78.67.Hc; 78.55.Cr||PACS|
|Keywords:||aluminium compounds, gallium arsenide, III-V semiconductors, photoluminescence, semiconductor quantum wells, semiconductor quantum wires |
|Subjects:||500 Science > 530 Physics|
|Created at the University of Regensburg:||Unknown|
|Deposited On:||25 Jan 2010 13:49|
|Last Modified:||20 Jul 2011 22:18|