Characterization of an integrated fluorescence-detection hybrid device with photodiode and organic light-emitting diode

Kyeong Sik Shin, Young Hwan Kim, Kyeong Kap Paek, Jung Ho Park, Eun Gyeong Yang, Tae Song Kim, Ji Yoon Kang, Byeong Kwon Ju

Research output: Contribution to journalArticlepeer-review

25 Citations (Scopus)

Abstract

A new integrated fluorescence-detection hybrid device with a photodiode and an organic light-emitting diode (OLED), and its characteristics are presented. To detect the fluorescent signal using OLED as a light source, a finger-type photodiode with low parasitic resistance was designed, which utilizes the side depletion region in the p+n junction. In addition, OLED was designed to have the peak intensity at an excitation wavelength from rhodamine 6G. The integrated fluorescence-detection hybrid device fabricated had a background signal of 153 nA and a limit of detection of 1 μM, and was applied in the competitive assay.

Original languageEnglish
Pages (from-to)746-748
Number of pages3
JournalIEEE Electron Device Letters
Volume27
Issue number9
DOIs
Publication statusPublished - 2006 Sep

Keywords

  • Biosensors
  • Fluorescence
  • Microfluidic
  • Organic light-emitting diode (OLED)
  • P-type intrinsic n-type (p-i-n) diode
  • Photodiode

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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