Publications [#66862] of Adrienne D. Stiff-Roberts

Papers Published

1. Stiff, Adrienne D. and Krishna, Sanjay and Bhattacharya, Pallab and Kennerly, Stephen W., Normal-incidence, high-temperature, mid-infrared, inAs-GaAs vertical quantum-dot infrared photodetector, IEEE Journal of Quantum Electronics, vol. 37 no. 11 (2001), pp. 1412 - 1419 [3.958360]
   (last updated on 2007/04/16)

   Abstract:
   The growth, fabrication, and characterization of a normal-incidence, high-temperature, mid-wavelength infrared, InAs - GaAs vertical quantum-dot infrared photodetector with a single Al_0.3Ga_0.7As current-blocking barrier are described and discussed in detail. A specific detectivity 3 × 10⁹ cmHz^1/2/W is measured for a detector temperature of 100 K at a bias of 0.2 V. Detector characteristics are measured for temperatures as high as 150 K. The superior low bias performance of the vertical quantum-dot infrared photodetector ensures its compatibility with commercially available silicon read-out circuits necessary for the fabrication of a focal plane array.