News on LEDs

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80 Current news about the topic leds

Lighting the way for more efficient LEDs

02-Feb-2018 - Researchers at the U.S. Naval Research Laboratory (NRL) Center for Computational Materials Science, working with an international team of physicists, have revealed that nanocrystals made of cesium lead halide perovskites (CsPbX3), is the first discovered material which the ground exciton state is ...

bromine cesium cesium lead halide perovskites +13

Realizing highly efficient quantum dot LEDs with metallic nanostructures at low cost

24-Jan-2018 - Professor Yong-Hoon Cho from the Department of Physics and his team succeeded in improving the efficiency of Quantum Dot (QD) Light-Emitting Diodes (LEDs) by designing metallic nanostructure substrates. QD LEDs possess very small semiconductor light sources and are considered to be the new rising ...

LEDs light emitting diodes nanodisks +3

Making waves for ultrahigh definition displays

18-Jan-2018 - Flexible ultrahigh resolution displays have benefits for next-generation mobile electronics, such as point-of-care medical diagnostic devices. KAUST has developed a unique transistor architecture that boosts the performance of the display circuitry. Flat-panel displays implemented in smart ...

displays imaging LEDs +8

New glass for solar cells and LEDs

14-Dec-2017 - Using nanoscale grass-like structures, researchers at the University of Pittsburgh , Pennsylvania have created glass that lets through a large amount of light while appearing hazy. This is the first time that glass has been made with such high levels of haze and light transmittance at the same ...

glass glasses LEDs +7

The way to better and cheaper transparent conductors

30-Nov-2017 - Researchers at the University of Liverpool have made a discovery that could improve the conductivity of a type of glass coating which is used on items such as touch screens, solar cells and energy efficient windows. Coatings are applied to the glass of these items to make them electrically ...

coatings conductivity conductors +6

Quantum dots amplify light with electrical pumping

22-Nov-2017 - In a breakthrough development, Los Alamos scientists have shown that they can successfully amplify light using electrically excited films of the chemically synthesized semiconductor nanocrystals known as quantum dots. The quantum dot films are integrated into devices much like the now-ubiquitous ...

diodes lasers LEDs +6

Tech increases microfluidic research data output 100-fold

09-Nov-2017 - Researchers have developed a technique that allows users to collect 100 times more spectrographic information per day from microfluidic devices, as compared to the previous industry standard. The novel technology has already led to a new discovery: the speed of mixing ingredients for quantum dots ...

automation technology fluorescence grants +7

Four elements make 2-D optical platform

27-Sep-2017 - Rice University scientists have discovered a two-dimensional alloy with an optical bandgap that can be tuned by the temperature used to grow it. The Rice lab of materials scientist Pulickel Ajayan grew the four-component alloy of transition metals molybdenum and tungsten with chalcogens sulfur ...

2D materials advanced materials chalcogens +14

A spectroscopic 'science camera' system for smartphones

15-Sep-2017 - The latest versions of most smartphones contain at least two and sometimes three built-in cameras. Researchers at the University of Illinois would like to sell mobile device manufactures on the idea of adding yet another image sensor as a built-in capability for health diagnostic, environmental ...

cameras diagnosis diagnostic tests +7

Stretchable biofuel cells extract energy from sweat to power wearable devices

25-Aug-2017 - A team of engineers has developed stretchable fuel cells that extract energy from sweat and are capable of powering electronics, such as LEDs and Bluetooth radios. The biofuel cells generate 10 times more power per surface area than any existing wearable biofuel cells. The devices could be used ...

biofuel cells electronics fuel cells +3