Midinfrared InAsGaSb type-II superlattice interband tunneling photodetectors

Shin Mou, Adam Petschke, Qi Lou, Shun Lien Chuang, Jian V. Li, Cory J. Hill

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


A photovoltaic InAsGaSb superlattice photodetector based on electron transfer using quantum energy levels and interband tunneling is presented: an interband tunneling detector. The quantum efficiency is about 7%, which is improved by ten times compared to the previous published interband cascade detectors. The R0 A product is 0.03 cm2 at 200 K and is comparable to that of state-of-the-art InAsGaSb superlattice photodiodes. Since the interband tunneling detector works without an applied bias, it is promising for small-pixel focal plane array applications.

Original languageEnglish
Article number153505
JournalApplied Physics Letters
Issue number15
Publication statusPublished - 2008 Apr 24

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)


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