Physics and Applications of Unipolar Barriers in Infrared (IR) Detectors

Abstract

A recently invented, advanced, high performance infrared detector is the Unipolar Barrier detector. In this program, the effects of defects and surface currents on the performance of the detectors were investigated with modeling and experiment. In comparison to conventional pn-based infrared detectors, it was found that unipolar barrier detectors are dramatically less sensitive to performance degradation by defects. Surface conduction in infrared semiconducting materials was examined. The mechanisms of surface leakage in unipolar barrier detectors were investigated. A new implementation of unipolar barriers for infrared detection was demonstrated in a flat-band pn-based unipolar barrier detector.

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Document Details

Document Type
Technical Report
Publication Date
Aug 23, 2016
Accession Number
AD1021353

Entities

People

  • Gary Wicks

Organizations

  • University of Rochester

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Band Structures
  • Charge Carriers
  • Compound Semiconductors
  • Conduction Bands
  • Crystal Lattices
  • Crystal Structure
  • Crystals
  • Current Density
  • Detection
  • Detectors
  • Diagrams
  • Electronics Laboratories
  • Electrons
  • Energy Bands
  • Epitaxial Growth
  • Heat Of Activation
  • Infrared Detection
  • Infrared Detectors
  • Military Research
  • Molecular Beam Epitaxy
  • P-N Junctions
  • Semiconductors
  • Spacecraft
  • Valence Bands

Readers

  • Semiconductor Device Technology