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Proceedings Paper

Thin film photodetectors in organic devices for analytical applications (Conference Presentation)
Author(s): Joseph Shinar; Joong-Mok Park; Rajiv Kaudal; Joshua Wolanyk; Xun Xiao; Jinsong Huang; Ruth Shinar
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Paper Abstract

We present the utilization of inorganic, organic, and hybrid (perovskite) thin film photodetectors in (bio)chemical sensing where OLEDs are used as the excitation source in compact devices. The sensitivity and feasible operational mode, whether monitoring the effect of the analyte concentration on the photoluminescence intensity or decay time following an OLED pulse will be discussed. While monitoring the PL decay time is the preferred operational mode, charge trapping and other defects impede the photodetectors’ response time, limiting the analysis dynamic range. Analytes tested include oxygen, glucose, lactate, and ethanol. Examples of all organic sensors for these analytes will be presented. The use of thin film photodetectors in on-chip (integrated all-organic) spectrometers will also be shown.

Paper Details

Date Published: 18 September 2018
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Proc. SPIE 10738, Organic and Hybrid Sensors and Bioelectronics XI, 107380Q (18 September 2018); doi: 10.1117/12.2322368
Show Author Affiliations
Joseph Shinar, Iowa State Univ. of Science and Technology (United States)
Joong-Mok Park, Ames Lab. (United States)
Rajiv Kaudal, Iowa State Univ. of Science and Technology (United States)
Joshua Wolanyk, Iowa State Univ. of Science and Technology (United States)
Xun Xiao, The Univ. of North Carolina at Chapel Hill (United States)
Jinsong Huang, The Univ. of North Carolina at Chapel Hill (United States)
Ruth Shinar, Iowa State Univ. of Science and Technology (United States)


Published in SPIE Proceedings Vol. 10738:
Organic and Hybrid Sensors and Bioelectronics XI
Ioannis Kymissis; Ruth Shinar; Luisa Torsi; Emil J. W. List-Kratochvil, Editor(s)

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