Chunlei Guo

Silicon, the standard semiconducting material used in a host of applications-computer central processing units (CPUs), semiconductor chips, detectors, and solar cells-is an abundant, normally occurring material. However, it is pricey to mine as well as to cleanse.

For greater than a century, optical finishings have actually been made use of to better reflect specific wavelengths of light from lenses and also various other tools or, on the other hand, to far better transfer certain wavelengths with them. As an example, the finishings on colored eyeglasses mirror, or "block out," damaging blue light and also ultraviolet rays.