A hybrid organic semiconductor/silicon photodiode for efficient ultraviolet photodetection

Jack William Levell, Mario Ettore Giardini, I.D.W. Samuel

Research output: Contribution to journalArticle

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Abstract

A method employing conjugated polymer thin film blends is shown to provide a simple and convenient way of greatly enhancing the ultraviolet response of silicon photodetectors. Hybrid organic semiconductor/silicon photodetectors are demonstrated using fluorene copolymers and give a quantum efficiency of 60% at 200 nm. The quantum efficiency is greater than 34% over the entire 200-620 nm range. These devices show promise for use in high sensitivity, low cost UV-visible photodetection and imaging applications.
Original languageEnglish
Pages (from-to)3219-3225
Number of pages7
JournalOptics Express
Volume18
Issue number4
DOIs
Publication statusPublished - 15 Feb 2010

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Keywords

  • optical properties
  • energy transfer
  • CCD imagers
  • photoluminescence
  • polyfluorene
  • coatings
  • Liumogen
  • phosphor
  • films

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