Impact of core-shell perovskite nanocrystals for LED applications: successes, challenges, and prospects
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comunitat-uji-handle2:10234/160292
comunitat-uji-handle3:10234/160293
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Title
Impact of core-shell perovskite nanocrystals for LED applications: successes, challenges, and prospectsAuthor (s)
Date
2023-07-24Publisher
The Royal Society of ChemistryBibliographic citation
ADHIKARI, Samrat Das, et al. Impact of core–shell perovskite nanocrystals for LED applications: successes, challenges, and prospects. Chemical Science, 2023.Type
info:eu-repo/semantics/articleVersion
info:eu-repo/semantics/publishedVersionSubject
Abstract
Perovskite nanocrystals (PeNCs) synthesized by colloidal solution methods are an outstanding case of study due to their remarkable optical features, different from their bulk counterpart, such as a tuneable band gap ... [+]
Perovskite nanocrystals (PeNCs) synthesized by colloidal solution methods are an outstanding case of study due to their remarkable optical features, different from their bulk counterpart, such as a tuneable band gap and narrower photoluminescence emission, altered by the size and shape. However, the stability of these systems needs to be improved to consolidate their application in optoelectronic devices. Improved PeNC quality is associated with a less defective structure, as it affects negatively the photoluminescence quantum yield (PLQY), due to the essential, but at the same time labile interaction between the colloidal capping ligands and the perovskite core. In this sense, it would be extremely effective to obtain an alternative method to stabilize the PeNC phases and passivate the surface, in order to improve both stability and optical properties. This objective can be reached exploiting the structural benefits of the interaction between the perovskite and other organic or inorganic materials with a compatible structure and optical properties and limiting the optical drawbacks. This perspective contemplates different combinations of core/shell PeNCs and the critical steps during the synthesis, including drawbacks and challenges based on their optical properties. Additionally, it provides insights for future light emitting diode (LED) applications and advanced characterization. Finally, the existing challenges and opportunities for core/shell PeNCs are discussed. [-]
Funder Name
Ministerio de Ciencia, Innovación y Universidades (Spain) | MCIN/AEI/10.13039/501100011033 | FEDER funds. | Generalitat Valenciana, Prometeo Grant Q-Solutions | European Innovation Council (EIC) | Project Transicion Ecologica
Project code
PID2021-122960OA-I00 | TED2021-131600B–C3 | CIPROM/2021/078 | 101071010
Project title or grant
Generación de Conocimiento She-LED
Rights
© 2023 The Author(s). Published by the Royal Society of Chemistry
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