Organic field-effect optical waveguides

Guangyao Zhao, Huanli Dong (), Qing Liao, Jun Jiang, Yi Luo, Hongbing Fu and Wenping Hu ()
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Guangyao Zhao: Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences
Huanli Dong: Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences
Qing Liao: Capital Normal University
Jun Jiang: University of Science and Technology of China
Yi Luo: University of Science and Technology of China
Hongbing Fu: Capital Normal University
Wenping Hu: Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences

Nature Communications, 2018, vol. 9, issue 1, 1-7

Abstract: Abstract Integrating electronics and photonics is critically important for the realization of high-density and high-speed optoelectronic circuits. However, it remains challenging to achieve this target due to the difficulty of merging many different areas of science and technology. Here, we show an organic integrated optoelectronic device, namely, organic field-effect optical waveguide, integrating field-effect transistor and optical waveguide together. In such device, the propagation of optical waveguide in the active organic semiconductor can be tuned by the third terminal—the gate electrode of transistor, giving a controllable modulation depth as high as 70% and 50% in parallel and perpendicular directions of charge transport versus optical waveguide, respectively. Also, the optical waveguide with different directions can turn the field-effect of the device with the photodependence ratio up to 14800. The successful integration of active field-effect transistor with semiconductor waveguide modulator expands opportunities for creating scalable integration of electronics and photonics in a chip.

Date: 2018
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DOI: 10.1038/s41467-018-07269-9

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