A New Way Makes Color LED Industrialized Product in Large Quantity
An international research team in the United States, "Science Progress" magazine reported that they invented a simple and economical new method, according to the need to create different sizes of semiconductor nanocrystals, to help achieve the next generation of color light-emitting diode (LED) Industrialized mass production.
Researchers at the University of Munich, Germany, found that for semiconductors used in light-emitting diodes, changing the size of semiconductor crystals at the nanoscale scale allowed them to emit light of different colors, ranging from blue to red visible light, High color purity.
Researchers have developed a method for producing semiconductor crystals by costly perovskite materials. The core is a film of only a few nanometers thick film mold, which consists of silicon and alumina nano-porous material composition, above a large number of microporous can act as a chemical reaction vessel, the raw material solution in the micro-hole reaction, the formation of perovskite nano Crystal.
Experiments show that the size of the micropores on the film mold directly affects the size of the nanocrystals, thus determining the luminous color. The nanocrystals prepared in this way are very stable and enable the light-emitting diodes to achieve higher color fidelity.
Researchers said they will further improve the production efficiency of the method and expand the scope of applications, such as the production of flexible color display.
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