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

    26 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 Sept

    Bibliographical note

    Funding Information:
    Manuscript received April 28, 2006; revised June 19, 2006. This work was supported by the Intelligent Microsystem Center, which carries out one of the 21st century’s Frontier R&D Projects sponsored by the Korea Ministry of Commerce, Industry and Energy. The review of this letter was arranged by Editor P. Yu.

    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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