Heinz Schmid, Hans Biebuyck, et al.
Journal of Vacuum Science and Technology B: Microelectronics and Nanometer Structures
Paper
Characteristics of high responsivity 8.5 μm InGaAs/InP QWIPs grown by metalorganic vapour phase epitaxy
Abstract
Higher responsivity of quantum well infrared photodetectors based on In0.53Ga0.47As-InP material system compared to the well established GaAs-AlGaAs material system is analyzed. It is shown that the higher responsivity of the former results mainly from its smaller capture probability, pc, than that of the latter. Both transport as well as L valley occupancy appear important in determining the pc. © 2006.
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