Beijing National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.
School of Chemistry and Chemical Engineering, University of the Chinese Academy of Sciences, Beijing, 100039, China.
Nat Commun. 2018 Nov 15;9(1):4790. doi: 10.1038/s41467-018-07269-9.
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.
将电子学和光子学集成对于实现高密度和高速光电子电路至关重要。然而，由于融合许多不同科学和技术领域的难度，实现这一目标仍然具有挑战性。在这里，我们展示了一种有机集成光电设备，即有机场效应光波导，它将场效应晶体管和光波导集成在一起。在这种器件中，光学波导在有源有机半导体中的传播可以通过第三端——晶体管的栅电极来调节，在与光导垂直和平行的电荷输运方向上分别实现高达 70%和 50%的可控调制深度。此外，具有不同方向的光波导可以使器件的场效应随光依赖性比高达 14800。有源场效应晶体管与半导体波导调制器的成功集成为在芯片上实现电子学和光子学的可扩展集成创造了机会。
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