Integration of transmissible organic electronic devices for sensor application

Hoi Lam Tam; Xizu Wang; Furong Zhu

doi:10.1117/12.2025493

18 September 2013 Integration of transmissible organic electronic devices for sensor application

Hoi Lam Tam, Xizu Wang, Furong Zhu

Proceedings Volume 8831, Organic Field-Effect Transistors XII; and Organic Semiconductors in Sensors and Bioelectronics VI; 883121 (2013) https://doi.org/10.1117/12.2025493
Event: SPIE Organic Photonics + Electronics, 2013, San Diego, California, United States

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.

Citation Download Citation

Hoi Lam Tam, Xizu Wang, and Furong Zhu "Integration of transmissible organic electronic devices for sensor application", Proc. SPIE 8831, Organic Field-Effect Transistors XII; and Organic Semiconductors in Sensors and Bioelectronics VI, 883121 (18 September 2013); https://doi.org/10.1117/12.2025493

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