English

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

1405
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
  • Comparison of Blue and Infrared Wavelength in Pure Nickel Laser Deep Fusion Welding Process

    It is reported that researchers from BIAS Bremer Institution f ü r angewandte Strahltechnik GmbH in Germany have reported a comparative study of laser deep penetration welding processes for pure nickel using blue and infrared light wavelengths. The related research was published in Welding in the World under the title "Process comparison of laser deep penetration welding in pure nickel using blue ...

    2024-08-13
    See translation
  • Emerging laser technologies for precise manufacturing of multifunctional nanomaterials and nanostructures

    The use of photons to directly or indirectly drive chemical reactions has fundamentally changed the field of nanomaterial synthesis, leading to the emergence of new sustainable laser chemistry methods for manufacturing micro - and nanostructures. The incident laser radiation triggers complex interactions between chemical and physical processes at the interface between solid surfaces and liquid or ...

    2024-08-05
    See translation
  • A New Method for Controlling Light Polarization Using Liquid Crystal to Create Holograms

    Researchers have made significant breakthroughs in controlling optical polarization, which is a key characteristic of various applications such as augmented reality, data storage, and encryption.This new method was developed by a group of scientists using liquid crystals to create holograms, which can manipulate the polarization of light at different points. This represents a significant advanceme...

    2024-03-12
    See translation
  • Overview: High throughput preparation of alloy composition design in additive manufacturing

    Researchers from the New Materials Technology Research Institute of Beijing University of Science and Technology and the Beijing Modern Transportation Metal Materials and Processing Laboratory reported a review of high-throughput preparation of alloy composition design in additive manufacturing. The relevant research is titled "High throughput preparation for alloy composition design in additive m...

    2024-07-08
    See translation
  • Aerosol jet printing can completely change the manufacturing of microfluidic devices

    Surface acoustic wave technology is renowned for its high precision and fast driving, which is crucial for microfluidics and affects a wide range of research fields. However, traditional manufacturing methods are time-consuming, complex, and require expensive cleanroom facilities.A new method overcomes these limitations by utilizing aerosol jet printing to create customized equipment with various ...

    2024-02-02
    See translation