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qds News
Photoluminescence Spectroscopy Optimizes Perovskite Quantum Dots
Jul 25, 2019 — Perovskite semiconductors have attracted tremendous attention in recent years because of the rapid rise of perovskite solar cell efficiencies — from less than 10% to more than 20% in less than five years — and the potential for the materials to provide low-cost solar power. The properties that make these materials well suited as absorber layers in solar cells also make them excellent emitters of light, and researchers have shifted their attention toward material optimization for...
Photoluminescence Spectroscopy Optimizes Perovskite Quantum Dots
Apr 1, 2019 — Perovskite semiconductors have attracted tremendous attention in recent years because of the rapid rise of perovskite solar cell efficiencies — from less than 10% to more than 20% in less than five years — and the potential for the...
Strain Engineering Produces Highly Stable Light From Individual QDs
LOS ALAMOS, N.M., Jan. 15, 2019 — New research at Los Alamos National Laboratory suggests that asymmetrically strained colloidal quantum dots (QDs) can provide stable, blink-free light emission comparable with the light produced by QDs made through more complex processes. The...
Colloidal Quantum Dot, IR LEDs Display Highest Efficiency
BARCELONA, Spain, Dec. 5, 2018 — A composite material that is a strong light emitter as well as an efficient charge conductor — colloidal quantum dot (CQD) LEDs — has been developed by a team at the Institute of Photonic Sciences (ICFO). The nanocomposite system comprising IR CQDs...
Quantum Dots Replace Dyes to Stabilize Cell Imaging
CHAMPAIGN, Ill., Nov. 6, 2018 — A new molecular probe, based on the fluorescence in situ hybridization (FISH) technique, uses quantum dots (QDs) instead of fluorescent dyes to illuminate molecules and diseased cells. Developed by a team from the University of Illinois at...
Liquid-Based White LEDs Achieve High Luminous Efficiency
ISTANBUL, July 16, 2018 — Quantum dot (QD) white LEDs that show a luminous efficiency of 105 lm/W have been developed. The QDs are liquid-based and, according to researchers, could help the LEDs achieve an efficiency double that of LEDs that incorporate quantum dots in solid...
Fuji Pigment Develops Metal-Free QD Manufacturing Process
KAWANISHI CITY, Japan, April 26, 2016 — Fuji Pigment Co. Ltd., led by Ryohei Mori, has announced the development of a large-scale manufacturing process for carbon and graphene quantum dots (QDs). Quantum dots under UV Light. Courtesy of PRNewsFoto/Fuji Pigment Co. Ltd. Generally QDs are...
Seth Coe-Sullivan Appointed Luminit VP of Technology
TORRANCE, Calif., Jan. 29, 2016 — Light technology developer Luminit LLC has appointed Seth Coe-Sullivan as its vice president of technology. Coe-Sullivan will be in charge of transitioning Luminit’s existing holographic technologies into commercial products and developing new...
DOE Announces Solid-State Lighting Awards
WASHINGTON, D.C., Jan. 27, 2016 — The U.S. Department of Energy Office of Science has selected six companies and their respective solid-state lighting technologies projects to receive small business awards. The Small Business Innovation Research (SBIR)-Small Business Technology...
Food Waste Transformed into LEDs
SALT LAKE CITY, Oct. 14, 2015 — LEDs made from sugary drinks could reduce waste and replace other light sources made with toxic elements. University of Utah researchers have developed a process for turning food, beverages and even combustion exhaust into light-emitting quantum...
Thin Films Make Certain QDs Glow Brighter
HUNTSVILLE, Ala., and NORMAN, Okla., Sept. 16, 2014 — Controlling the way quantum dots behave could turn them into more efficient light emitters.
Quantum Materials Appoints Advisory Committee, Directors
SAN MARCOS, Texas, July 22, 2014 — Quantum dot maker Quantum Materials Corp. recently created a scientific advisory board and named two outside executives to its board of directors. The scientific advisory board will be chaired by Ghassan Jabbour, director of the renewable energy...
Trends in Optics
Jan 16, 2014 — Advances in optics in the past year or two have ranged from promising new optical materials to innovations in existing technologies. From optical coatings and add-on kits to quantum dots and metadevices, the scope of progress is as extensive as it...
Gold nanoparticles boost QD glow
GAITHERSBURG, Md. – A DNA template that controls the distance between gold nanoparticles and quantum dots can predictably increase or decrease the intensity of a quantum dot’s fluorescence. The breakthrough could lead to the use of quantum dots as a component in...
Quantum Materials Supplies Tetrapod Dots to DoE
CARSON CITY, Nev., March 29, 2013 — Quantum Materials Corp. (QMC) has developed and delivered customized tetrapod quantum dot samples for applications under development by Department of Energy National Lab researchers.
Gold Nanoparticles Boost QD Glow
GAITERSBURG, Md., Feb. 5, 2013 — A DNA template that controls the distance between gold nanoparticles and quantum dots can predictably increase or decrease the intensity of a quantum dot’s fluorescence. The breakthrough could lead to the use of quantum dots as a component in better...
QDs Are Entering the Mainstream
Feb 1, 2013 — Since their discovery in the 1980s, quantum dots have been quietly gaining momentum, making slow but steady headway in applications from displays and lighting to photovoltaics and health care. Unique and versatile, quantum dots (QDs) are no longer...
‘Egg Crate’ Design for QD-LEDs Optimizes Performance
CAMBRIDGE, Mass., Nov. 16, 2011 — A new quantum-dot LED "egg crate" design is turning troublesome ligand molecules into a critical element that creates a more versatile QD-LED structure that could have applications in displays, lighting, and lasers.
Light Moves Electron-Hole Pairs
DELFT, Netherlands, Oct. 18, 2011 — Under the influence of light, electrons have been shown to move freely in layers of linked semiconductor nanoparticles. The breakthrough could lead to the development of cheap and efficient quantum dot solar cells, say researchers at Delft...
QDs Improve Next-Gen Solar Cells by 6%
TORONTO, Sept. 21, 2011 — A promising technique for improving solar conversion efficiency has been developed using tightly packed quantum dots assembled on the surface of solar cells. Researchers from the University of Toronto (U of T), the King Abdullah University of...
Novel nanoparticles change color
COLUMBUS, Ohio – Tiny polymeric containers stuffed with red and green quantum dots promise to provide continuous light for biomedical imaging. Engineers at Ohio State University have invented nanoparticles that, somewhat unusually, glow red, green or yellow...
QDs, Fullerenes Paired for Nanoscale PVs
UPTON, N.Y., May 13, 2011 — A surface-based assembly of colloidal quantum dots and carbon-based fullerene nanoparticles is producing promising power-generating units for miniaturized electronics. Scientists at the US Department of Energy’s (DoE) Brookhaven National...
QD Vision’s Coe-Sullivan Named to NRC Committee
WATERTOWN, Mass., Oct. 22, 2010 — Quantum dot company QD Vision announced that Dr. Seth Coe-Sullivan was selected as a member of the National Research Council Committee. The committee was set in place to develop a research strategy for the environmental, health and safety...
An unexpected dark pulse laser
BOULDER, Colo. – Sometimes what isn’t there can be as interesting as what is. In working to develop mode-locked quantum dot diode lasers, researchers have discovered something unforeseen: a dark pulse laser. The device emits a steady beam of light, with...
Nanoparticles Intensify QDs’ Glow
UPTON, N.Y., July 27, 2010 — By linking individual semiconductor quantum dots with gold nanoparticles, scientists at Brookhaven National Laboratory have demonstrated the ability to enhance the intensity of light emitted by individual quantum dots by up to 20 times. According to...
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