English

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

122
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
  • The research team establishes synthetic dimensional dynamics to manipulate light

    In the field of physics, the synthetic dimension has become one of the forefront of active research, providing a way to explore phenomena in high-dimensional space, surpassing our traditional 3D geometric space. This concept has attracted great attention, especially in the field of topological photonics, as it has the potential to unlock rich physics that traditional dimensions cannot reach.Resear...

    2024-03-20
    See translation
  • Fiber laser and deburring machine have improved the production efficiency and manufacturing capability of MITS Alloy

    The heavy-duty aluminum Ute tray and roof series of MITS Alloy have been greatly welcomed and demanded.The company is headquartered in Newcastle and was founded by Tim Lightfoot and Tony Brooks in January 2015. Tim's existing business, Safety MITS, provides maintenance equipment for mining, earthwork transportation, transportation, and related industries. They jointly determined that the four-whee...

    2024-05-15
    See translation
  • The construction of China's first attosecond laser device in Dongguan provides strong impetus for breakthroughs in multiple major fundamental scientific issues such as quantum computing

    On October 3rd, the 2023 Nobel Prize in Physics was announced, recognizing scientists who have studied attosecond physics, marking the beginning of the attosecond era for humanity.At present, China's first attosecond laser device, the "Advanced attosecond Laser Facility", is being prepared and built in Dongguan, Guangdong, providing strong impetus for breakthroughs in multiple major basic scientif...

    2023-10-07
    See translation
  • Telescope Discovers Record breaking Galaxy Space Laser

    A powerful telescope in South Africa has detected a space laser 5 billion light-years away from Earth, known as the "megamaser". Scientists named it Nkalakatha, which means "big boss" in Zulu language.Nkalakatha is the farthest hydroxyl giant detected so far, discovered by the MeerKAT telescope on the first night of the survey, which is expected to include 3000 hours of observation. The team of sc...

    2024-03-09
    See translation
  • TRUMPF machine cooler saves 50 percent energy

    Ditzingen, 05. March 2025 – At its in-house exhibition INTECH, high-tech company TRUMPF is showcasing a new cooler for its laser cutting machines. The new unit is capable of reducing energy consumed during the cooling process and uses fifty percent less energy than conventional solutions. Unlike conventional coolers, the main components of this new solution— such as pumps, fans and compressors— ar...

    03-14
    See translation