High performance solar-blind ultraviolet 320 × 256 focal plane arrays based on AlxGa1-xN

Erdem Cicek, Ryan P McClintock, Abbas Haddadi, William A.Gaviria Rojas, Manijeh Razeghi

Research output: Contribution to journalArticle

7 Scopus citations

Abstract

We report on solar-blind ultraviolet, AlxGa1-xN- based, p-i-n, focal plane array (FPA) with 92% operability. At the peak detection wavelength of 278 nm, 320 × 256 -FPA-pixel showed unbiased peak external quantum efficiency and responsivity of 49% and 109 mA/W, respectively, increasing to 66% under 5 V of reverse bias. Electrical measurements yielded a low-dark current density: <7 × 10-9 A/cm2 , at FPA operating voltage of 2 V of reverse bias.

Original languageEnglish (US)
Article number6824173
Pages (from-to)591-595
Number of pages5
JournalIEEE Journal of Quantum Electronics
Volume50
Issue number8
DOIs
StatePublished - Jan 1 2014

Keywords

  • Photodetectors
  • aluminum gallium nitride
  • focal plane array
  • p-i-n
  • ultraviolet

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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