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Brochard-Garnier, S., Paris, M., Genois, R., Han, Q., Liu, Y., Massuyeau, F. & Gautier, R. (2019) Screening Approach for the Discovery of New Hybrid Perovskites with Efficient Photoemission. Advanced Functional Materials, 29 1806728. 
Added by: Richard Baschera (2019-01-31 08:23:59)   Last edited by: Richard Baschera (2019-01-31 08:28:32)
Type de référence: Article
DOI: 10.1002/adfm.201806728
Clé BibTeX: BrochardGarnier2019
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Créateurs: Brochard-Garnier, Gautier, Genois, Han, Liu, Massuyeau, Paris
Collection: Advanced Functional Materials
Consultations : 5/376
Indice de consultation : 4%
Indice de popularité : 1%
Owing to quantum confinement, low-dimensional hybrid perovskite materials have recently shown a great potential for applications in optoelectronics. Such compounds can exhibit broad- or narrow-band light emission, low-temperature solution processability, high thermal stability, and relatively high photoluminescence quantum yields (PLQY). However, the search for efficient phosphors with a specific set of characteristics remains difficult because the family of hybrid perovskites consists in an extremely large chemical system (i.e., different halides, metals, and organic molecules), and optical properties are not predictable prior to material synthesis and characterization. Here, is proposed a simple approach to screen a significant amount of new hybrid lead halide perovskites. The synthetic method by fast crystallization at low temperature enables the rapid identification of the materials exhibiting the targeted photoluminescence properties. This approach is tested for the discovery of hybrid lead halide perovskites with efficient white-light emission. Among 100 newly synthesized compounds, 5 exhibit intense white emission, and the in-depth characterization of a selected candidate shows high color rendering index (CRI) = 78 and a PLQY of 9%, which is equivalent to the record reported for hybrid perovskites. This compound exhibits a new structure type for warm white-light emitting hybrid perovskites with chains of corner-sharing PbX6.
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