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Proceedings Paper

Integration of transmissible organic electronic devices for sensor application
Author(s): Hoi Lam Tam; Xizu Wang; Furong Zhu
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Paper Abstract

A high performance proximity sensor that integrates a front semitransparent organic photodiode (OPD) and an organic light-emitting diode (OLED) is demonstrated. A 0.3-nm-thick plasma-polymerized fluorocarbon film (CFX)-modified thin silver interlayer, serving simultaneously as a semitransparent cathode for the OPD and an anode for OLED, is used to vertically connect the functional organic electronic components. A microcavity OLED is formed between a semitransparent Ag/CFX interlayer and the rear Al cathode enhancing the forward electroluminescence emission in the integrated device. The semitransparent-OPD/OLED stack is designed using an optical admittance analysis method. In the integrated sensor, the front semitransparent OPD component enables a high transmission of light emitted by the integrated OLED unit and a high absorption when light is reflected from objects, thereby to increase the signal/noise ratio. The design and fabrication flexibility of an integrated semitransparent-OPD/OLED device also has cost benefit, making it possible for application in organic proximity sensors.

Paper Details

Date Published: 18 September 2013
PDF: 6 pages
Proc. SPIE 8831, Organic Field-Effect Transistors XII; and Organic Semiconductors in Sensors and Bioelectronics VI, 883121 (18 September 2013); doi: 10.1117/12.2025493
Show Author Affiliations
Hoi Lam Tam, Hong Kong Baptist Univ. (Hong Kong, China)
Xizu Wang, Institute of Materials Research and Engineering (Singapore)
Furong Zhu, Hong Kong Baptist Univ. (Hong Kong, China)


Published in SPIE Proceedings Vol. 8831:
Organic Field-Effect Transistors XII; and Organic Semiconductors in Sensors and Bioelectronics VI
Zhenan Bao; Iain McCulloch; Ruth Shinar; Ioannis Kymissis, Editor(s)

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