Blue Emission from CsPbBr3 Quantum Dots for Light-Emitting Diodes*

Lighting technology has is on the verge of bringing true white-emission LEDs into commercial use, but there are a few factors preventing widespread adoption of quantum dot LED technology over YAG phosphors, not the least of which is production cost. Lead-halide perovskite QDs are a leading choice for QDLED manufacture because they have become efficient in recent years. In previous synthesis processes for CsPbX3 quantum dots, the main focus has been on product efficiency, and not so much on production efficiency. This practice has so far produced unnecessarily complex synthesis processes which can be greatly simplified via removing unneeded chemicals and considering alternate sources for others. In this presentation I will go over a new method to produce CsPbBr3 quantum dots. This method is so simple that it requires no equipment other than a heat source and a centrifuge to produce quantum dots that can have emissions in the blue range. This process is also completely scalable in manufacture, making this synthesis method a contender for processes that would be used in industrial manufacture.