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Si based mid-infrared GeSn photo detectors and light emitters

  • Wei Du
  • , Thach Pham
  • , Joe Margetis
  • , Huong Tran
  • , Seyed A. Ghetmiri
  • , Aboozar Mosleh
  • , Greg Sun
  • , Richard A. Soref
  • , John Tolle
  • , Hameed A. Naseem
  • , Baohua Li
  • , Shui Qing Yu
  • University of Arkansas System
  • ASM
  • Arktonics, LLC
  • University of Massachusetts Boston

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

In this work, high performance GeSn photoconductor and light emitting diodes (LED) have been demonstrated. For the photoconductor, the high responsivity was achieved due to high photoconductive gain, which is attributed to the novel optical and electrical design. The longwave cutoff at 2.4 μm was also observed at room temperature. For LED, temperature-dependent study was conducted. The electroluminescence (EL) spectra at different temperatures were obtained and EL peak shift was observed. Moreover, the emission power at different temperatures was measured. High power emission at 2.1 μm was achieved.

Original languageEnglish
Title of host publicationOptical Sensing, Imaging, and Photon Counting
Subtitle of host publicationNanostructured Devices and Applications
EditorsGail J. Brown, Manijeh Razeghi, Dorota S. Temple
PublisherSPIE
ISBN (Electronic)9781628417210
DOIs
StatePublished - 2015
EventOptical Sensing, Imaging, and Photon Counting - San Diego, United States
Duration: Aug 11 2015 → Aug 13 2015

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9555
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceOptical Sensing, Imaging, and Photon Counting
Country/TerritoryUnited States
CitySan Diego
Period8/11/15 → 8/13/15

ASJC Scopus Subject Areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Keywords

  • GeSn
  • Infrared
  • Light emitting diode
  • Photoconductor

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