Efficient and stable CsPbBr3 nanocrystals with the sole ligand of (3-aminopropyl)triethoxysilane (APS) were synthesised by adding hydrobromic acid (HBr) into the precursor. The films of CsPbBr3 nanocrystals were fabricated on a slide by centrifugal force. Also, down-converted light-emitting diodes (LEDs) were fabricated by coating the CsPbBr3 quantum dot films on ultraviolet chips.

This work shows the competitive relationship between self-trapped exciton (STE) emission from the host crystal and dopant Mn d–d transition emission.

Metal halide perovskites show abundant photophysical properties and great potential in photovoltaic and electroluminescence devices, but its poor stability is an obvious shortcoming. Here, we successfully synthesis polymer-coated CsPbBr3 quantum...

Photoluminescence enhancement of stretched CsPbBr3 QDs@PDMS composites is caused by elimination of self-absorption due to the larger distance between QDs.

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