Quantum Materials Corp. (fka QTMM)

[trevorbc]

Doesn't appear as though our competitor has had success with cadmium free materials. IMO this is where QMC tech is a game changer. Flow reactor vs beaker batch, the precision required to produce volume production with uniformity and high yield consistently are key to manufacturers.

Nanosys statement..

To date, cadmium-free quantum dots aren’t universally used, Hartlove explained, because they are harder to produce precisely and therefore don’t perform as well. The color of a quantum dot is determined by the size of the crystal and the band gap of the material; the lower the band gap, the smaller the crystal needs to be to produce a particular color. And when you make crystals smaller, the manufacturing process has to be that much more precise. Says Hartlove, “The impact of 5 atoms more or less on a crystal of 400 atoms is much different than on a crystal of 200 atoms.” The cadmium-free crystals of indium and phosphorus Nanosys is working with now are between 8 and 40 atoms across compared with between 10 and 50 atoms across for its cadmium-selenium crystals. The spectral width of the light they produce is just under 40 nm wide, not as narrow as the sub-30 nm range of the best cadmium selenide quantum dots, Hartlove says, which means that they are less efficient when used in a display system.

http://spectrum.ieee.org/view-from-the-valley/semiconductors/materials/behind-the-scenes-at-the-nanosys-quantum-dot-factory-in-milpitas-california