Improving amorphous selenium photodetector performance using an organic semiconductor

Shiva Abbaszadeh, Nicholas Allec, Karim S. Karim

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

Abstract

In this paper, a thin layer of perylene tetracarboxylic bisbenzimidazole (PTCBI) is investigated as a potential hole-blocking contact in an a-Se photodetector. The behavior of the device was characterized as a function of electric field under light and dark conditions. It was found that the PTCBI layer permits operation at high electric fields (>>10 V/μm) while maintaining a dark current density below 200 pA/mm2. Short pulse experiments were performed to assure that charge accumulation at the organic/a-Se interface is negligible and does not reduce the electric field in the a-Se layer. The detector investigated uses a simple low temperature fabrication process based on widely available semiconductor materials that can be easily integrated into current large area digital imager manufacturing processes.

Original languageEnglish (US)
Title of host publicationMaterials and Applications for Sensors and Transducers II
PublisherTrans Tech Publications Ltd
Pages451-454
Number of pages4
ISBN (Print)9783037856161
DOIs
StatePublished - 2013
Event2nd International Conference on Materials and Applications for Sensors and Transducers, IC-MAST 2012 - Budapest, Hungary
Duration: May 24 2012May 28 2012

Publication series

NameKey Engineering Materials
Volume543
ISSN (Print)1013-9826
ISSN (Electronic)1662-9795

Other

Other2nd International Conference on Materials and Applications for Sensors and Transducers, IC-MAST 2012
CountryHungary
CityBudapest
Period5/24/125/28/12

Keywords

  • Amorphous selenium
  • Large area electronics
  • Organic semiconductor
  • Photodetector

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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