As the Reuters foreign media reported, researchers Oregon State University also much better than using a car battery acid "superacids", to improve the "quantum dots" made of copper indium disulfide performance. This research is expected to produce cheaper, safer LEDs.
Quantum dots have been used in optics and electronics for some time. However, due to the toxicity of lead and cadmium, they are expensive to manufacture and are not safe for some potential applications, such as biomedical imaging.
Greg Herman, a professor of chemical engineering at Oregon State University, said, "Quantum dots can be used in a variety of products and technologies, but for mass consumer use, perhaps the most important thing is to improve LED lighting." Point of luminescent nanocrystal TV."
The latest study, published in the journal Materials Letters, in which researchers have developed a super acid treatment that increases the photoluminescence of non-toxic, non-heavy metal quantum dots to a level comparable to cadmium selenide.
Greg Herman added: "The light emission of this super acid-treated quantum dot is much better." "There are still some problems to be solved, but we have shown that it can improve the lifetime of quantum dots and improve quantum efficiency. Because these quantum dots are non-toxic, they also have potential for biomedical applications."
Editor: Yan Zhixiang
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