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    Breaking News

    Quantum Dots from Osram Help Make LEDs More Efficient

    New conversion technology delivers excellent efficacy, even at high color rendering indexes with the Osconiq S 3030 quantum dot.

    Quantum Dots from Osram Help Make LEDs More Efficient
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    05.21.19
    Quantum dots (QD) are nanometer-sized semiconductor particles, which means they are about 10,000 times smaller than the diameter of a human hair. Due to their very small size, the light that is re-emitted when blue LED light hits the nanoparticles depends on the size of the particles. For example, QD particles that are roughly three nanometers in size produce green light, while particles around seven nanometers emit red light.
     
    This innovative, tunable light conversion technology is now being used for the first time in the Osconiq S 3030 QD mid-power LED from Osram Opto Semiconductors. It marks the first step towards new LED components for the general lighting market. Osram’s new mid-power LED Osconiq S 3030 QD was specially developed for area lighting and downlight applications.
     
    When manufacturing conventional white LEDs, the main objectives are efficacy and product quality. Considering both at the same time poses a particular challenge, especially with very high color rendering indexes (CRI), where developers with conventional converter technology have at times, reached their limits. QDs can solve this problem. The advantage of using these nanoparticles is that the existing LED manufacturing processes remain the same.
     
    More than a year ago, Osram acquired Pacific Light Technologies (PLT), a leading company in the development and manufacturing of high-performance optical nanomaterials. The PLT QD technology enables Osram to begin to close the efficacy gap that exists between CRI 80 and CRI 90 LEDs today. The new Osconiq S 3030 includes a specially developed QD phosphor solution that enables CRI 90 to achieve an outstanding efficacy value of 173 lm/W at 3000 K – a best-in-class value for 0.2 W high-performance LEDs. The compact dimensions of 3.0 mm x 3.0 mm and the low thermal resistance enable simple system design. Another unique feature of the PLT QD technology is that the Quantum Dots are encapsulated to protect them from moisture and other external influences that pose the greatest risk to the functionality of a LED.
     
     
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      Osram Discloses Figures for 2Q 2019

      Revenue fell by 13.5% to €862 million from January to the end of March, with an adjusted EBITDA margin of 8.1%.
      05.09.19

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      Allows Osram to expand product range in automotive sector to include more automotive electronics and accessories.
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      The company said it is also demonstrating to select customers.
      04.29.19


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      Graphene and Related Materials Inks Improve Solar Cells

      Graphene and Related Materials Inks Improve Solar Cells

      Graphene Flagship researchers have developed hybrids of graphene and MoS₂ quantum dots to stabilize perovskite solar cells.
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      Luminescing nanosized crystals are showing promise for peering deeply into body tissues, but first, they need to be made safe.
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