• DocumentCode
    1498478
  • Title

    Long wavelength metamorphic double heterojunction In0.53Ga0.47As/InAlGaAs/In0.52Al 0.48As photodiodes on GaAs substrates

  • Author

    Jang, J.H. ; Cueva, G. ; Dumka, D.C. ; Hoke, W.E. ; Lemonias, P.J. ; Fay, P. ; Adesida, I.

  • Author_Institution
    Dept. of Electr. & Comput. Eng., Illinois Univ., Urbana, IL, USA
  • Volume
    37
  • Issue
    11
  • fYear
    2001
  • fDate
    5/24/2001 12:00:00 AM
  • Firstpage
    707
  • Lastpage
    708
  • Abstract
    The design and performance of metamorphic InGaAs/InGaAlAs/InAlAs double heterojunction photodiodes fabricated on GaAs substrates are presented. A low dark current of 500 pA at 5 V bias, a responsivity of 0.6 A/W, and a -3 dB bandwidth of 38 GHz for 1.55 μm light have been achieved by using a large bandgap drift region in conjunction with a digitally graded bandgap layer
  • Keywords
    III-V semiconductors; aluminium compounds; dark conductivity; gallium arsenide; indium compounds; optical fabrication; optical testing; p-i-n photodiodes; p-n heterojunctions; 1.55 mum; 38 GHz; 5 V; 500 pA; GaAs; GaAs substrates; In0.53Ga0.47As-InAlGaAs-In0.52Al 0.48As; In0.53Ga0.47As/InAlGaAs/In0.52Al 0.48As photodiodes; InAlAs; InGaAlAs; InGaAs; InGaAs/InGaAlAs/InAlAs double heterojunction photodiodes; bandwidth; dark current; design; digitally graded bandgap layer; fabrication; large bandgap drift region; long wavelength metamorphic double heterojunction; metamorphic double heterojunction photodiodes; performance; responsivity;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el:20010474
  • Filename
    926456