English

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

1141
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
  • Changguang Huaxin's revenue in the first half of the year was 142 million yuan, and its net profit decreased by 117.97% year-on-year

    On August 30th, Changguang Huaxin released its results for the first half of 2023. In the first half of this year, the company achieved a revenue of 142 million yuan, a year-on-year decrease of 43.23%; Net profit attributable to shareholders of the listed company -10.6374 million yuan, a year-on-year decrease of 117.97%.Due to macroeconomic factors such as a slowdown in economic growth, market con...

    2023-08-31
    See translation
  • GeoCue introduces three new TrueView 3D imaging systems

    Earlier this month, GeoCue, a liDAR mapping hardware and software provider, announced the launch of three new products for its TrueView 3D imaging system. These new systems combine laser scanning and high-resolution imaging, including the TV625, TV680 and TV680LR. All three systems are NDAA-compliant.All three systems are designed to be used in conjunction with drones, and the company note...

    2023-08-04
    See translation
  • 253 million US dollars! This Canadian medical fiber optic sensor manufacturer will be acquired

    Recently, Haemantics Corporation, which focuses on providing innovative medical solutions with proprietary optical technology, announced that the company has reached a final agreement. According to the agreement, Haemonics will acquire all outstanding shares of Canadian fiber optic sensor manufacturer OpSens for CAD 2.90 per share.This is an all cash transaction with a fully diluted equity value o...

    2023-10-18
    See translation
  • Researchers from Columbia University in New York reported the latest research on reverse laser sintering of metal powders

    Researchers from Columbia University in New York reported the latest research on reverse laser sintering of metal powders. The related achievements were published in Scientific Reports under the title "Invested laser sintering of metal powder".The researchers demonstrated the ability of reverse laser sintering technology to manufacture metal powder parts. Researchers first deposit a layer of coppe...

    2024-01-29
    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