Halide Perovskite Nanocrystals: Synthesis and Optical Properties
Liberato Manna a
a Istituto Italiano di Tecnologia Via Morego 30, IT-16163 Genova, Italy
NIPHO
Proceedings of International Conference on Perovskite Thin Film Photovoltaics and Perovskite Photonics and Optoelectronics (NIPHO22)
Online, Spain, 2022 February 14th - 15th
Organizers: Giulia Grancini, Mónica Lira-Cantú and Silvia Colella
Invited Speaker, Liberato Manna, presentation 015
DOI: https://doi.org/10.29363/nanoge.nipho.2022.015
Publication date: 11th November 2021

  

Halide perovskite semiconductors can merge the highly efficient operational principles of conventional inorganic semiconductors with the low‑temperature solution processability of emerging organic and hybrid materials, offering a promising route towards cheaply generating electricity as well as light. Following a surge of interest in this class of materials, research on halide perovskite nanocrystals (NCs) as well has gathered momentum in the last years. While most of the emphasis has been put on CsPbX3 perovskite NCs, more recently the so-called double perovskite NCs, having chemical formula A+2B+B3+X6, have been identified as possible alternative materials, together with various other metal halides structures and compositions, often doped with various other elements. This talk will also discuss the research efforts of our group on these materials. I will highlight how for example halide double perovskite NCs are much less surface tolerant than the corresponding Pb-based perovskite NCs and that alternative surface passivation strategies will need be devised in order to further optimize their optical performance.

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