English

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

1067
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 developed additive manufacturing (AM) technology based on hydrogel injection, and related research was published on Nano Letters

    It is reported that the research team of California Institute of Technology has developed an additive manufacturing (AM) technology based on hydrogel injection, which uses two-photon lithography technology to produce 3D metal with a characteristic resolution of about 100 nm.The relevant research is published in the journal Nano Letters, titled 'Suppressed Size Effect in Nanopillars with Hierarchy ...

    2023-09-25
    See translation
  • MKS Malaysia Penang Supercenter Factory Holds Groundbreaking Ceremony

    Recently, MKS Instruments held a groundbreaking and celebration ceremony for its Supercenter factory in Penang, Malaysia.This important moment has been witnessed jointly by the Malaysian Investment Development Authority (MIDA) and Invest Penang, which will help meet the growing demand for semiconductor equipment for wafer manufacturing in the region and globally. This advanced factory, covering ...

    2024-11-01
    See translation
  • Marvel Fusion received an additional € 50 million in Series B funding

    Recently, Marvel Fusion, which focuses on developing laser fusion energy systems, announced that the company has received an additional € 50 million in Series B funding. This latest investment is provided by EQT Venture Capital and Siemens Energy, and is also the first investment of the European Innovation Council (EIC) fund in fusion energy. In addition to the 63 million euros investment announce...

    04-08
    See translation
  • Fiber coupled single photon source meets the requirements of quantum computing

    Due to the ability of quantum computers to crack many encryption methods used in current communication systems, the security of our current communication systems is facing threats. To address this crisis, scientists are developing quantum communication systems that utilize quantum mechanics to provide stronger security. A key component of these systems is the single photon source. In order for qua...

    10-27
    See translation
  • Laser beam combined with metal foam to produce the brightest X-ray

    According to the Physicists' Network, scientists from Lawrence Livermore National Laboratory (LLNL) in the United States ingeniously combined the high-power laser emitted by the National Ignition Facility (NIF) with the ultra light metal foam to create the brightest X-ray ever. These ultra bright high-energy X-rays play an important role in many research fields, including imaging of extremely dens...

    01-18
    See translation