Publications by Adrienne D. Stiff-Roberts.

Papers Published

  1. Chakrabarti, S. and Stiff-Roberts, A.D. and Bhattacharya, P. and Kennerly, S.W., High responsivity AIAs/InAs/GaAs superlattice quantum dot infrared photodetector, Electronics Letters, vol. 40 no. 3 (2004), pp. 197 - 198 [el:20040136] .
    (last updated on 2007/04/16)

    Abstract:
    The characteristics of quantum dot infrared photodetectors (QDIPs) in which InAs self-organised quantum dots are embedded in an AlAs/GaAs superlattice matrix are reported. An extremely large peak responsivity, R p =2.5 A/W, is measured at T= 78K for Vvias = -1.5V A dark current density as low as 3.2 × 10-4 A/cm2 for Vbias= -2.0 V is also measured at T=300K.

    Keywords:
    Superlattices;Semiconducting indium compounds;Semiconducting gallium arsenide;Semiconductor quantum dots;Electric currents;Heterojunctions;Matrix algebra;Mathematical models;

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