Issue 26, 2015

Blue-luminescent organic lead bromide perovskites: highly dispersible and photostable materials

Abstract

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.

Graphical abstract: Blue-luminescent organic lead bromide perovskites: highly dispersible and photostable materials

Supplementary files

Article information

Article type
Paper
Submitted
09 Нау. 2015
Accepted
19 Мам. 2015
First published
20 Мам. 2015

J. Mater. Chem. A, 2015,3, 14039-14045

Blue-luminescent organic lead bromide perovskites: highly dispersible and photostable materials

S. Gonzalez-Carrero, G. M. Espallargas, R. E. Galian and J. Pérez-Prieto, J. Mater. Chem. A, 2015, 3, 14039 DOI: 10.1039/C5TA01765C

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