Making each photon count in halide perovskite semiconductors
Samuel Stranks a b
a Department of Chemical Engineering & Biotechnology, University of Cambridge,UK, Philippa Fawcett Dr, Cambridge, United Kingdom
b Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge, United Kingdom
Materials for Sustainable Development Conference (MATSUS)
Proceedings of nanoGe Fall Meeting 2021 (NFM21)
#PerFun21. Perovskites I: Solar Cells, Lighting, and Related Optoelectronics
Online, Spain, 2021 October 18th - 22nd
Organizers: Eva Unger and Feng Gao
Invited Speaker, Samuel Stranks, presentation 116
DOI: https://doi.org/10.29363/nanoge.nfm.2021.116
Publication date: 23rd September 2021

Halide perovskite semiconductors are generating enormous exciting for light-harvesting and light-emission technologies. One of the keys steps to maximising optoelectronic performance is through eliminating non-radiative recombination mechanisms and hence maximising luminescence yields. Here, I will detail recent work in our group exploring how to best make each photon count in absorbers, emitters and full device stacks. I will present a combination of modelling and experimental results investigating how photons interact within and between layers in device stacks such as tandems, including photon recycling effects and light coupling between layers -- leading to key device design parameters. Furthermore, I will present results on both solar cells and light-emitting diodes (LEDs) exploring routes towards suppressing non-radiative recombination and therefore maximising performance.

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