Browsing by Author "Kartal, D."
Now showing items 1-4 of 4
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Broadband staircase quantum well infrared photodetector: working in long wavelength infrared range (LWIR)
Hostut, M.; Kartal, D.; Ergun, Y.; Sokmen, I. (WILEY-V C H VERLAG GMBH, 2007)We present a theoretical investigation of a staircase-like quantum well infrared photodetector (QWIP). it detects wavelength between 7.6 mu m and 13.5 mu m range at an applied electric field of F = 1.9x10(4) V/cm at 77 K. ... -
The effects of pressure and barrier height on donor binding energy in GaAs/Ga1-xAlxAs cylindrical quantum well wires
Baser, P.; Elagoz, S.; Kartal, D. (ELSEVIER SCIENCE BV, 2010)The ground state binding energy of axial hydrogenic impurity in GaAs/Ga1-xAlxAs cylindrical quantum well wires (CQWWs) are investigated as a function of the barrier height and the radius of the wire under hydrostatic ... -
Hydrogenic impurity states in zinc-blende InxGa1-xN/GaN in cylindrical quantum well wires
Baser, P.; Elagoz, S.; Kartal, D.; Karki, H. D. (ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD, 2011)Within the framework of effective-mass approximation, the binding energy of a hydrogenic donor impurity in zinc-blende (ZB) InxGa1-xN/GaN cylindrical quantum well wires (CQWWs) is investigated using variational procedures. ... -
Tunable long-wavelength broad band asymmetric quantum well infrared photodetector
Hostut, M.; Kartal, D.; Ergun, Y.; Sokmen, I. (IOP PUBLISHING LTD, 2007)We present a theoretical investigation of a GaAs/AlGaAs infrared detector consisting of three asymmetric quantum wells. Each well is designed to yield absorption and a photoresponse at peak wavelengths of 8.2 mu m, 9.5 mu ...