Sb-based infrared materials and photodetectors for the near-room-temperature applications

Jedon D. Kim*, Erick J. Michel, H. Mohseini, J. Wojkowski, J. J. Lee, Manijeh Razeghi

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

We report on the growth of InSb, InAsSb, and InTlSb alloys for infrared photodetector applications. The fabrication and characterization of photodetectors based on these materials are also reported. Both photoconductive and photovoltaic devices are investigated. The materials and detector structures were grown on (100) and (111)B semi-insulating GaAs and GaAs coated Si substrates by low pressure metalorganic chemical vapor deposition and solid source molecular beam epitaxy. Photoconductive detectors fabricated from InAsSb and InTlSb have been operated in the temperature range from 77 K to 300 K. The material parameters for photovoltaic device structures have been optimized through theoretical calculations based on fundamental mechanisms. InSb p-i-n photodiodes with 77 K peak responsivities approximately 103 V/W were grown on Si and (111) GaAs substrates. An InAsSb photovoltaic detector with a composition of x = 0.85 showed photoresponse up to 13 μm at 300 K with a peak responsivity of 9.13 × 10-2 V/W at 8 μm. The RoA product of InAsSb detectors has been theoretically and experimentally analyzed.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsGail J. Brown, Manijeh Razeghi
PublisherSociety of Photo-Optical Instrumentation Engineers
Pages55-66
Number of pages12
Volume2999
ISBN (Print)0819424102
StatePublished - Dec 1 1997
EventPhotodetectors: Materials and Devices II - San Jose, CA, USA
Duration: Feb 12 1997Feb 14 1997

Other

OtherPhotodetectors: Materials and Devices II
CitySan Jose, CA, USA
Period2/12/972/14/97

ASJC Scopus subject areas

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

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