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Unlike traditional semiconductor materials such as silicon, quantum dots for sale emit light in varying wavelegths across the visible spectrum depending on their size, shape and composition. This “tunable” luminescence gives them great potential for use in solid state lighting, electronic devices, solar cells and laser diodes, as well as medical imaging and sensing applications.
Quantum dots have found applications in composites, solar cells (Gratzel cells) and fluorescent biological labels (for example to trace a specific biological molecule). Their small particle size and tuneable energy levels allow for great control over the emission and absorption of light.
In the display industry, quantum dot technology has made it possible to produce brighter and more colorful displays that are thinner and lighter than conventional LCDs. Quantum dot TVs can also achieve higher resolutions and lower power consumption than OLED displays.
While quantum dot technology has been used in prototypes of new TVs and monitors, it will take a few more years for the first products based on the new material to reach the market. However, the company expects that more products with Nanosys’ quantum dot color conversion materials will be available in 2020 and beyond.
A key to commercializing quantum dot technology is reliable manufacturing. Current methods for creating quantum dot nanocrystals require complex and expensive equipment, which requires specialized training to operate. A new technology, patented by the Coretec Group, is based on the liquid silicon precursor Cyclohexasilane (CHS). The CHS-based process produces quantum dot nanocrystals with superior quality and uniformity, at a fraction of the cost of existing processes. This is accomplished by tuning reaction conditions to provide highly tunable photoluminescence quantum yields and emission colors.