Search
Menu
PI Physik Instrumente - Revolution In Photonics Align LW LB 3/24

Playing Rough to Get the Light Out

Facebook X LinkedIn Email
Hank Hogan

Researchers at the Electronics and Telecommunications Research Institute of Daejeon, South Korea, have shown that, when it comes to getting a silicon quantum dot LED to shine, it helps to play rough — at least with the surface. The group enhanced the light-extraction efficiency of the diode 2.8 times by roughing up its surface in micron-scale patterns. The technique could improve the performance of silicon quantum dot LEDs significantly. Because silicon has an indirect bandgap, devices built with the material are less bright than those constructed from other semiconductors. Silicon,...Read full article

Related content from Photonics Media



    Articles


    Products


    Photonics Handbook Articles


    White Papers


    Webinars


    Photonics Dictionary Terms


    Media


    Photonics Buyers' Guide Categories


    Companies
    Published: January 2007
    Glossary
    bandgap
    In semiconductor physics, the term bandgap refers to the energy range in a material where no electronic states are allowed. It represents the energy difference between the valence band, which is the highest range of energy levels occupied by electrons in their ground state, and the conduction band, which is the lowest range of unoccupied energy levels. The bandgap is a crucial parameter in understanding the electrical behavior of semiconductors and insulators. Here are the key components...
    nano
    An SI prefix meaning one billionth (10-9). Nano can also be used to indicate the study of atoms, molecules and other structures and particles on the nanometer scale. Nano-optics (also referred to as nanophotonics), for example, is the study of how light and light-matter interactions behave on the nanometer scale. See nanophotonics.
    photonics
    The technology of generating and harnessing light and other forms of radiant energy whose quantum unit is the photon. The science includes light emission, transmission, deflection, amplification and detection by optical components and instruments, lasers and other light sources, fiber optics, electro-optical instrumentation, related hardware and electronics, and sophisticated systems. The range of applications of photonics extends from energy generation to detection to communications and...
    bandgapCommunicationsFeaturesmicron-scale patternsnanophotonicssilicon quantum dot LED

    We use cookies to improve user experience and analyze our website traffic as stated in our Privacy Policy. By using this website, you agree to the use of cookies unless you have disabled them.