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5 March 2021 Ultrabright luminescence from all-Inorganic copper halides
Bayram Saparov, Tielyr Creason, Mao-Hua Du
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Proceedings Volume 11702, Photonic Heat Engines: Science and Applications III; 117020F (2021) https://doi.org/10.1117/12.2577261
Event: SPIE OPTO, 2021, Online Only
Abstract
Following the emergence of metal halide perovskites for optical and electronic applications, search for alternative non-toxic lead-free halides that demonstrate high environmental stability and excellent optoelectronic properties has accelerated. In this talk, our recent discoveries of brand-new families of high efficiency light-emitting materials based on all-inorganic copper halides will be summarized. These all-inorganic copper(I) halides demonstrate low-dimensional non-perovskite structures, and consequently, very flat bands around the band gap, leading to very localized charges. Such charge localization and low-dimensional structures typically result in the presence of high stability self-trapped excitons at room temperature producing record high photoluminescence efficiencies approaching unity. Our preliminary studies of the potential practical applications of these luminescent copper halides will also be discussed.
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Bayram Saparov, Tielyr Creason, and Mao-Hua Du "Ultrabright luminescence from all-Inorganic copper halides", Proc. SPIE 11702, Photonic Heat Engines: Science and Applications III, 117020F (5 March 2021); https://doi.org/10.1117/12.2577261
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KEYWORDS
Copper
Luminescence
Excitons
Metals
Optoelectronics
Perovskite
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