You missed the point. Here I'll make it simple.
PLT's dots are cadmium-based, as you would expect for an on-chip approach, but the company is investigating cadmium-free materials.
Now who has a product that would solve this issue?
QDX™ Heat-Resistant QD
QMC recently introduced QDX™, a new category of high-heat resistant quantum dots, made to both withstand the heat of LCD display line production and the constant heat from active use in solid state lighting. In displays, QDX™ also reduce the need for expensive barrier films, lowering the cost of production.
Quantum Materials recently obtained heat resistance to 260 degrees Celsius for QDX™ Quantum Dots, allowing for high-temperature film application and encapsulation in resins, silicones and other polymers, opening a realm of application possibilities for design engineers.
QDX™ Quantum Dots are ideal for LED lighting development because they are more stable than organic phosphors and their high heat resistance enables better LED manufacturing capability, high illumination performance, long lifetime and resistance to power spike damage. Solid-state lighting made with QDX™ LED's offer the opportunity to reduce heat sinks, remove bulky features, and bring innovative and clean form factors to the evolving lighting market.
Now who used to work for PLT?