Colloidal perovskite quantum dots are emerging as one of the most promising candidates for next-generation optoelectronics. To make optoelectronic devices, it is required to control self assembly and the photophysical properties of the self-assembled superlattices. In this talk, I will be focused on the superlattices of perovskite colloidal quantum wells (CQWs), based on our recent progress in this field. Our findings reveal three new physical properties that have never been observed in typical quantum dot solids, including: (i) the aggregation-induced emission characteristics, (ii) the inhibited Forster resonance energy transfer (FRET) between neighbor wells, and (iii) the emission directionality. I will cover the physics and the implications of the new physical mechanisms.

Perovskite colloidal quantum wells: Self-assembly and physics

2019 Spring National Meeting

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