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    • Denggle > Lighting News >

    Researchers Create New LED from “Multi-Particle Exciton Complexes”

    Researchers Create New LED from “Multi-Particle Exciton Complexes”

    Source： ledinside.com 23 Apr 2019
    Vienna University of Technology TU Wien LED research

    A research team at Vienna University of Technology (TU Wien) developed a new kind of LED which generates light from the radiative decay of exciton complexes in extremely thin layers.

     

    Researchers produced what they called as “multi-particle exciton complexes” by applying electrical pulses to extremely thin layers of material made from tungsten and selenium or sulphur. These exciton clusters are bonding states made up of electrons and “holes” in the material and can be converted into light. The result is an innovative form of light-emitting diode in which the wavelength of the desired light can be controlled with high precision. The finding was published in the journal “Nature Communications.”

     

    Researchers Create New LED from “Multi-Particle Exciton Complexes”

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    Héctor Esrawe Introduces Félix Candela's Parabolas Into Lighting Design

    publish your work esrawe studio (17 articles) esrawe studio introduces félix candela's parabolas into lighting design esrawe studio introduces félix candela's parabolas into lighting designfeb 25, 2019 esrawe studio intervalo furniture collection exhibits at mexico design week esrawe studio intervalo furniture collection exhibits at mexico design weekoct 12, 2018 esrawe designs brass and copper bar at auditorio nacional in mexico city esrawe designs brass and copper bar at auditorio nacional in mexico citysep 21, 2018 nouvel limited reveals blown glass collection by mexican designers at design miami/basel nouvel limited reveals blown glass collection by mexican designers at design miami/baseljun 26, 2018 esrawe studio fits out taquería in mexico city with new interiors and brand identity esrawe studio fits out taquería in mexico city with new interiors and brand identityfeb 25, 2018 popular now design! LE GRAND PRIX DU CARRÉ HERMÈS call-for-entries now open! LE GRAND PRIX DU CARRÉ HERMÈS call-for-entries now open! 27k views 'less and more' illustrates the functional design of dieter rams 'less and more' illustrates the functional design of dieter rams 19k views naoto fukasawa designs 11-piece cutlery set 'itsumo' for alessi naoto fukasawa designs 11-piece cutlery set 'itsumo' for alessi 19k views the polydrop trailer is a lightweight portable living space for comfortable travelling the polydrop trailer is a lightweight portable living space for comfortable travelling 23k views kengo kuma completes the world's largest starbucks reserve roastery in tokyo kengo kuma completes the world's largest starbucks reserve roastery in tokyo 24k views lighting design (224 articles) night book emits warm, soft light when pulled from bookcase night book emits warm, soft light when pulled from bookcasemar 05, 2019 simone crestani turns japanese paintings into glass lighting installations at milan design week simone crestani turns japanese paintings into glass lighting installations at milan design weekfeb 28, 2019 esrawe studio introduces félix candela's parabolas into lighting design esrawe studio introduces félix candela's parabolas into lighting designfeb 25, 2019 kamaro’an weaves lighting and stationary out of umbrella sedge plants kamaro’an weaves lighting and stationary out of umbrella sedge plantsfeb 20, 2019 creative studio idea3di launches levitating marble lamp 'levia' creative studio idea3di launches levitating marble lamp 'levia'feb 11, 2019 322 122 46 50 héctor esrawe has designed lighting fixtures that create a reflection based on how the light travels through a solid surface — from the beginning to the end, through the darkness in the parabolas of félix candela. the path of the light in each of the versions is conditioned by the metal, in its scale, its surface and in its expression, also on its repetition, which builds an architectonic quality for each one of them.

    Mads Odgård designs "simplest possible lamp" for Carl Hansen & Son

    Danish designer Mads Odgård stripped away anything unnecessary when creating this series of minimal lamps for Carl Hansen & Son, which feature hemispherical shades that intersect with simple metal tubes.

    Hybrid Quantum Dot Light Emitting Electrochemical Cells

    Several new light generation technologies that are overshadowed by LEDs and OLEDs are investigated. Most of these technologies are in a very early stage of research. One such technology, the LEC technology, was presented at LpS 2017. Light emitting electrochemical cells can be compared to OLEDs, but they are based on a much simpler inorganic architecture. The innovation in the presented approach lies in the combination with quantum dots, resulting in a hybrid solution. This novel attempt with all its consequences and future prospects was the reason that the LpS Scientific Award jury voted to bestow the award on Dr. Ekaterina Nannen, Group Leader of the Research Group „Solid State Lighting“ at the Nano-Energie-Technik- Zentrum (NETZ) of the University Duisburg-Essen and her research team, Julia Frohleiks and Svenja Wepfer.

    Analog Devices Partners First Sensor to Develop LiDAR Products for Autonomous Driving

    Analog Devices, Inc. (ADI) announced the collaboration with First Sensor AG to develop products aimed at speeding the launch of autonomous sensing technology serving unmanned automotive, aerial and underwater vehicles in transportation, smart agriculture, industrial manufacturing and other industries. As part of the collaboration, Analog Devices and First Sensor are developing offerings that shrink the LiDAR signal chain to enable higher system performance as well as reduce size, weight, power and cost for manufacturers designing sensing and perception technology into their autonomous safety systems. The companies also plan to develop other LiDAR products that will serve automotive and industrial manufacturing applications.

    Universal Lighting Technologies are Added to LED Solutions Portfolio by Avnet in the Americas

    Global technology distributor Avnet and Universal Lighting Technologies, a lighting manufacturer and a member of the Panasonic Group, announced a new agreement designating Avnet as Universal’s first OEM distributor authorized to sell the EVERLINE family of LED drivers and linear modules in the Americas. Effective immediately, OEM customers in markets such as automotive, healthcare, smart agriculture and connected lighting will have access to Universal’s advanced LED product family, supported by Avnet’s state-of-the-art technical resources and comprehensive supply chain optimization capabilities.

    The Macaron Floor Lamp Is the Latest Addition to This Dessert-Inspired Lighting Collection

    A few years ago, Spanish designer Silvia Ceñal introduced the Macaron pendant lamp and now with Lithuanian company EMKO, the Macaron Floor Lamp comes to life. Much like the pendant, the dessert-inspired design merges simple materials, like wood and rope, with the right proportions to create a lively personality. The wooden frame brings a warm feeling while the threaded cord adds a playful touch through color and texture.

    Henan Province Realizes the Promotion and Application of "LED Lighting + Visible Light Communication" Technology

    With LED lighting, high-speed Internet access is possible, and such a scene is becoming a reality. On May 27, the reporter learned from the Science and Technology Department of Henan Province that the provincial major science and technology project "developing and applying semiconductor lighting system technology integrated into visible light communication" undertaken by Henan Zhongyun Chuang Optoelectronics Technology Co., Ltd. has successfully passed the acceptance of the expert group.

    Tunable white lighting in the classroom: The new ROI is ROO

    Throughout the past few years, we at LEDs Magazine have seen more solid-state lighting (SSL) product development targeted at educational environments. School officials, especially in the public-school arena, must manage strict budgets and plan strategically to obtain the best return on investment (ROI) possible, so the potential financial implications are important factors — first, the cost of premium equipment and installation, but then balanced against the possible payback due to energy efficiency initiatives and less maintenance. One consideration beyond the established cost reductions of SSL in institutional buildings such as schools is the possible impact of tunable white lighting in the classroom. Naturally, dimmability and other controls features such as granularity of color temperature can be customized to various classroom tasks and increase visual acuity. But what’s becoming even more appealing to educational administrators is the ability to influence less “visible” factors in the classroom, such as mood, behavior, and concentration. Strategies in Light, co-located with The LED Show and Lightspace California, will draw more attention to so-called human-centric lighting applications as this, also known as lighting for health and wellbeing. One such presentation, “Lighting for pupils…Tunable white lighting in the classroom and the new ROI,” by Tricia Foster of Acuity Brands Lighting and Catherine Hollenshead of Estes, McClure & Associates (EMA), will feature a case study on a Texas school district’s first-hand experience using tunable white lighting in several classrooms. Here the speakers give a glimpse into the new classroom experience. They will offer up additional details during SIL on how ROI has evolved into “return on objective” (ROO) in such installations. — Carrie Meadows

    China CDC publishes multilingual epidemic control manuals for COVID-19

    To allow timely sharing with other countries of the most up-to-date COVID-19 control and prevention information, particularly as developing countries often have weaker healthcare systems and resources, a critical multilingual manual has been published in both English and French by the Chinese Center for Disease Control and Prevention. To comprehensively disseminate education on control and prevention of COVID-19 globally, based on the latest authoritative materials from China CDC, the World Health Organization and related periodicals -- with first-hand information from China, China CDC has organized experts and translators to develop the set of color publicity manuals containing FAQs regarding control and prevention of the epidemic(www.chinacdc.cn/en/COVID19). The compilation consists of such chapters as General Questions, Maternal and Child Health, Personal and Other Types of Protection, Diagnosis and Treatment. The manual, in a Q&A format, clarifies principal concerns of the general public in a systematic and focused manner, and has different color sketches tailored to African, ASEAN and South Asian countries, and is applicable for use by medical professionals and the general public alike. It can also be downloaded from the website to be circulated, or printed for distribution by Chinese embassies and consulates abroad, public health institutions of countries in Africa and other continents, foreign counterparts and the general public. At the same time, the manuals can also serve as materials to be used by Chinese experts when they go abroad for exchanges and training programs.

    How About The Technology of Guangzhou Rongyu Intelligent Machinery Co., Ltd.

    The development and plan of a company are related to its technology. If the technology cannot follow up, it is hard for a company to achieve sustainable development. Therefore, only by enhancing its technological strength can the company develop smoothly in the future. How about the technology of Guangzhou Rongyu Intelligent Machinery Co., Ltd. (hereafter called Rongyu)?

    Research Shows LED Can Cool Down Electronics Devices with Reversed Electrodes

    Researchers found a new method of photonic cooling by running LED with electrodes reversed. Researchers believe that this approach could improve cooling technology for future microprocessors, which will include various transistors in a small space that current methods cannot remove heat quickly enough. The finding was published on Nature on February 13 by a research team at the University of Michigan.

    Nazdar Ink Technologies Partners with Focus Label Machinery to Boost UV LED Technology

    Nazdar Ink Technologies has announced a partnership with Focus Label Machinery, a UK based label printing company, aimed at driving the growth of UV LED technology within the label converter market in the UK and EMEA. The two businesses are collaborating to demonstrate the efficiency of UV LED curing technology at Focus Label Machinery's Bingham, Nottinghamshire-based offices in the UK.

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