English

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

1057
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
  • Exail acquires optical company Leukos

    Recently, exail (formerly iXblue) announced the acquisition of Leukos, an optical company specializing in providing advanced laser sources for metrology, spectroscopy, and imaging applications.Leukos was founded by the French XLIM Institute (a joint research department of the French National Academy of Sciences and the University of Limoges), with over 20 years of professional experience in the re...

    01-13
    See translation
  • Automated methods for background estimation in laser spectroscopy

    A new automated method for spectral background estimation in laser spectroscopy ensures the accuracy of quantitative analysis with minimal human intervention.When using laser-induced breakdown spectroscopy in spectral analysis, scientists may encounter various obstacles. The most common challenge faced by scientists when conducting elemental analysis is to optimize the interaction between the lase...

    2023-11-24
    See translation
  • Research has found that inorganic perovskite materials are easy to prepare and process, making them suitable for manufacturing lasers

    According to research from Busan National University, inorganic perovskite materials are easy to prepare and process, making them suitable for manufacturing lasers.The perovskite of interest is CsPbBr3, which must form "nanosheets" within the specific structure invented by the Busan team to obtain sufficient laser gain.It is not that the laser has been achieved, as the research project aims to cha...

    2024-01-04
    See translation
  • Mycronic receives first order after upgrading solid-state lasers

    Recently, Mycronic AB received its first order from SK Electronics in Japan to upgrade the installed display mask writer from a gas laser to a solid-state laser. The upgrade is scheduled to be delivered within the next two years.Image source: MycronicIt is reported that Mycronic's "Pattern Generators" department provides mask writers for display manufacturing and semiconductor production. So far, ...

    2023-10-16
    See translation
  • Intel: Has acquired most of ASML's NA extreme ultraviolet lithography equipment in the first half of next year

    According to Korean media reports, Intel has acquired most of the high numerical aperture (NA) extreme ultraviolet (EUV) lithography equipment manufactured by ASML in the first half of next year.ASML plans to produce 5 high NA EUV lithography equipment this year, all of which will be supplied to Intel.They stated that ASML has an annual production capacity of approximately 5-6 High Numerical Apert...

    2024-05-21
    See translation