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RESEARCH PRODUCT
Blue-luminescent organic lead bromide perovskites: highly dispersible and photostable materials
Raquel E. GalianJulia Pérez-prietoGuillermo Mínguez EspallargasSoranyel Gonzalez-carrerosubject
Materials scienceRenewable Energy Sustainability and the EnvironmentInorganic chemistrySubstrate (chemistry)General ChemistryPhotochemistryNanomaterialschemistry.chemical_compoundReaction rate constantchemistryDimethylformamideGeneral Materials ScienceDispersion (chemistry)LuminescencePowder diffractionPerovskite (structure)description
The preparation of a blue-luminescent and photostable organic–inorganic hybrid perovskite with an X-ray powder diffraction spectrum consistent with a two-dimensional inorganic framework is reported. This perovskite can be produced with a high reaction yield and valuable optical properties, such as luminescence quantum yield over 20%, radiative rate constant of up to 80 × 106 s−1, and high photostability under UV light. This material remains stable as a solid, is toluene-dispersible, and can be reverted reversibly into its precursors by using dimethylformamide (DMF). Moreover, the DMF dispersion can be injected into toluene to produce a nanomaterial or be used to prepare films by spin-coating on a substrate; both, the nanomaterial and the film exhibit practically the same optical features as the initial perovskite.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2015-01-01 | Journal of Materials Chemistry A |