Quantum dots have had a widespread commercial impact on LED technology, and now improving their manufacturing steps and increasing profits are the focus of research. According to the American Institute of Electrical and Electronics Engineers "Spectrum" magazine website, researchers at Oregon State University recently demonstrated a new quantum dot manufacturing technology, not only to ensure that the size and shape of the resulting quantum dots consistent, but also More accurate color control may mean the advent of a new era of LED lighting. In a study published in the Journal of Nanoparticle Research, the research team used a chemical reactor called a "continuous flow". Chemicals are continuously put into the reactor and a continuous LED illumination is generated. This continuous-flow device makes the process of making LED lighting cheaper, faster, and highly scalable. At the same time, they use microwaves to heat the reagent, solving the problem of how to precisely control the temperature in a chemical reaction. This microwave unit works just like your microwave oven at home. Researchers believe this approach will make a huge difference in LED lighting. Because this method can produce quantum dots that are uniform in size and shape, their flexibility ensures that the manufacturer can produce quantum dots with multiple uses. Smaller quantum dots can emit green light, larger quantum dots can release orange to red light. "We may eventually create low-cost, energy-efficient LED lighting that's as effective as the white light people want," said Greg Herman, an associate professor of chemical engineering at the University. The team believes that their precise manufacturing approach leads to better color control than other quantum dot manufacturing technologies. "At the same time, this technology uses non-toxic materials and drastically reduces material waste, which reduces manufacturing costs and protects the environment." Herman explains that quantum dots use less than what is commonly used in LED lighting systems Copper indium selenium compound material more friendly to the environment. Researchers say the quantum dots made by this approach offer another "cheap" option in a variety of fields, including optics, electronics and biomedicine. Isomalto-oligosaccharide 500(Organic Cassava) Liquid
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The orange light from the quantum dots can be seen under the microscope, shown as the letters OSU (Oregon State University).