Article ID Journal Published Year Pages File Type
1784131 Infrared Physics & Technology 2015 6 Pages PDF
Abstract
We report on the design, growth, fabrication and characterization of dual-band (long-/long-wave infrared) type-II InAs/GaSb strained layer superlattice (T2SL) detectors with pBp architecture. Under operating the bias of −200 mV and +100 mV, quantum efficiencies of 37% (∼11 μm band) and 25% (∼9 μm band) were realized, respectively. To reduce the dark current in a dual-band T2SL detector, the effect of a “restoration” chemical etch treatment and ZnTe passivation on device performance were investigated.
Related Topics
Physical Sciences and Engineering Physics and Astronomy Atomic and Molecular Physics, and Optics
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