English

Progress in research on intrinsic flexible and stretchable optoelectronic devices in the Institute of Chemistry

118
2024-04-09 15:58:58
See translation

Organic polymer semiconductor materials, due to their unique molecular structure and weak van der Waals interactions, are endowed with the characteristics of soluble processing and easy flexibility, and have potential applications in portable and implantable medical monitoring devices. A highly flexible, skin conformal, and excellent spatial resolution X-ray detector is expected to be integrated with curved objects and moving entity systems to achieve intrinsic flexibility and high sensitivity in skin like X-ray detectors.

However, the stability and image resolution of X-ray detectors based on organic polymer semiconductor materials under irradiation are poor, which limits the application of such devices. Liu Yunqi, an academician of the CAS Member, and Guo Yunlong, a researcher in the Key Laboratory of the Institute of Mechanical and Solid State of the Chemical Research Institute, have made a series of progress in high-performance intrinsically stretchable organic optoelectronic materials and devices.

Recently, in response to the reported issues of high operating voltage, poor stability, and low integration of stretchable organic optoelectronic devices, the team has proposed a new strategy of using removable interfaces to assist in the preparation of high-density intrinsic stretchable organic transistor arrays. This strategy introduces a lithium fluoride sacrificial layer on patterned photoresist to construct a detachable interface, achieving scalable integration of high-resolution intrinsic stretchable electrodes. The short channel stretchable organic transistor prepared in this study has low operating voltage, high optoelectronic performance, and excellent stability. The stretchable image sensor based on this short channel transistor exhibits a resolution of up to 10 lp mm-1 and achieves images of millions of pixels. This strategy provides a simple and universal optoelectronic integration platform. The relevant results were published in Nature Communications.

In addition, the team published a review paper on "Emerging Materials and Transistors for Integrated Circuits" in the National Science Review, summarizing the molecular design of high mobility semiconductor materials and functional fusion of mechanical, optical, and thermal properties. They analyzed and looked forward to the research progress and direction of functionalized high mobility polymer semiconductors.
The research work was supported by the National Natural Science Foundation of China, the Ministry of Science and Technology and the Chinese Academy of Sciences.

A detachable interface strategy for achieving stable, low-voltage stretchable organic transistors and high-resolution X-ray imaging


Multi functional integrated high mobility organic polymer semiconductor molecular materials

Source: Institute of Chemistry

Related Recommendations
  • September 2024 China International Industry Fair Machine Tool Exhibition

    The CNC Machine Tool and Metal Processing Exhibition under the China International Industry Fair gathers global intelligent machine tool equipment and focuses on cutting-edge metal processing technology. The exhibition categories cover metal cutting, metal forming, laser processing, sheet metal stamping, machine tool supporting functional components and peripheral products, with a display area of ...

    2024-09-04
    See translation
  • China has successfully developed the world's first 193 nanometer compact solid-state laser

    The Chinese Academy of Sciences reduced the volume of the deep ultraviolet laser by 90% and achieved 193 nm vortex beam output for the first time. Professor Xuan Hongwen described "loading truck equipment into the car trunk". This technology enables a 30% reduction in the size of lithography features, breaking through the bottleneck of the 2-nanometer process. In the next three years, laser power ...

    03-24
    See translation
  • Shenzhen Guangfeng Technology may cooperate with well-known German enterprises

    Recently, Shenzhen Guangfeng Technology Co., Ltd. once again disclosed a development fixed-point notice. Unlike other fixed-point notices received this year, this fixed-point notice points to the optical components of the vehicle's dynamic color pixel lights. According to company disclosure, Guangfeng Technology recently received a development notice from a leading international brand car compan...

    2024-11-18
    See translation
  • Researchers at the Massachusetts Institute of Technology have designed a new type of quantum light source using lead salt perovskite nanoparticles

    Most traditional quantum computing uses the spin of supercooled atoms or individual electrons as quantum bits, which form the foundation of such devices. By comparison, if light is used to replace physical entities as basic quantum bits, ordinary lenses and optical detectors can replace expensive devices to control the data input and output of quantum bits.Based on this, chemistry professors Moung...

    2023-10-09
    See translation
  • STREAMLIGHT Upgrade TLR RM Light with Red or Green Laser

    Streamlight, a leading supplier of high-performance lighting and weapon lights/laser aiming equipment, has launched upgraded models of its TLR RM 1 and TLR RM 2 series of lights, each now equipped with an HPL face cap, providing ultra bright beams of up to 1000 lumens and an extended range of up to 22000 candela.The popular TLR RM 1 and TLR RM 2 models are equipped with red or green lasers, both o...

    2024-02-23
    See translation