Herrle, Thomas, Haneder, Stephan, Tranitz, Hans-Peter, Reinwald, Matthias and Wegscheider, Werner
(2007)
Current-induced heating in quantum well and quantum wire intersubband emitter structures.
Applied Physics Letters 91 (20), p. 201105.
Date of publication of this fulltext: 25 Jan 2010 13:49at publisher (via DOI)
Abstract
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 ...
Abstract
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.
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