English

The research team has developed a mechanical luminescent touch screen that can work underwater

1259
2024-03-08 14:41:11
See translation

The optical properties of afterglow luminescent particles in mechanical luminescence and mechanical quenching have attracted much attention in various technological applications. A group of researchers from Pohang University of Science and Technology has attracted attention by developing an optical display technology with ALP that can write and erase messages underwater.

The team is composed of Professor Sei Kwang Hahn from the Department of Materials Science and Engineering at POSTECH and doctoral student Seong Jong Kim, who discovered a unique optical phenomenon in ALP. Subsequently, they successfully created a device to achieve this phenomenon. Their research results have been published in Advanced Functional Materials.

ALP has the ability to absorb energy and gradually release it, exhibiting mechanical luminescence when subjected to external physical pressure, and undergoing mechanical quenching when the emitted light disappears. Although active research has been conducted on the use of this technology for optical displays, the precise mechanism remains elusive.

In this study, the team delved into the effects of electron capture and charging on mechanical luminescence and quenching. They successfully unraveled the mechanisms that control these two phenomena. Based on this understanding, they will be able to achieve both phenomena simultaneously by combining ALP with very thin polymer materials. This combination leads to the creation of optical display patches that can be attached to the skin.

Display patches can convey information through writing by applying a small amount of pressure to the fingers. When exposed to ultraviolet light, the patch will reset to a blank state, similar to using an eraser to erase the content of a sketchbook. In addition, the touch screen of the display screen has moisture resistance and can maintain its function even after prolonged immersion in water.

Professor Sei Kwang Hahn, who led the research, said, "It can serve as a communication tool in situations where communication options are limited, such as underwater environments characterized by weak light or high humidity. It will also be used in wearable photon biosensors and phototherapy systems in extreme environments.".

Source: Laser Net

Related Recommendations
  • BenQ Launches V5000i 4K RGB Laser TV Projector

    Display solution brand BenQ recently launched the 4K RGB laser TV projector V5000i.The V5000i focuses on providing the pinnacle of innovation, unparalleled color accuracy, and excellent audio quality, elevating the home theater world to unprecedented heights. It is the perfect replacement for large screen televisions, particularly suitable for well lit spaces such as spacious living areas, "the co...

    2023-10-10
    See translation
  • Coherent develops borderless display cutting technology

    Coherent utilizes deep ultraviolet laser technology to study and improve the cutting process of displays, but the production of such displays is still very complex.Coherent, the host of the Mid-Europe Chapter Conference of the Society of Information Display (SID-MEC Conference) in Germany, has offered a look at its plans for improved display cutting. As a provider of laser solutions, the Göttingen...

    11-06
    See translation
  • Single photon avalanche diode detector enables 3D quantum ghost imaging

    A team of researchers at the Fraunhofer Institute for Optoelectronics, Systems Technology and Image Development and Karlsruhe Institute of Technology are using single-photon avalanche diode (SPAD) arrays to achieve three-dimensional (3D) quantum ghost imaging.The new method, called "asynchronous detection," produces the lowest photon dose of any measurement and can be used to image light-sensitive...

    2023-09-06
    See translation
  • Trumpf and SiMa. ai collaboration to develop AI laser

    Recently, Trumpf Group, a leading global provider of machine tools and laser technology solutions, announced that it has partnered with software company SiMa AI has signed a partnership agreement to develop lasers with artificial intelligence (AI).It is reported that SiMa. ai is a software centric embedded edge machine learning chip system company, and the goal of both parties is to equip Trumpf'...

    2024-07-19
    See translation
  • Enlightra and DESY Hamburg developed an improved and scalable comb laser

    Laser technology startup Enlightra collaborates with DESY Hamburg to develop and design more stable and efficient comb lasers. This work demonstrates a microresonator with programmable synthetic reflection, providing tailored injection feedback for driving lasers. This technology has significantly improved compared to traditional self injection locking technology and can be produced using standard...

    2024-01-26
    See translation