Abstract
The effective synthesis and embedding of semiconducting perovskite blends inside the pores of different mesoporous silica matrices is reported, as well as the implementation of these composites for the first time, as the single and active layer in light emitting diodes. The reported perovskites are blends of quasi-two dimensional hybrid organic-inorganic semiconductors based on lead halides. These blends have been synthesized within the pores of calcined or non-calcined MCM-41 hosts, of two different types, and were optically characterized with UV and PL spectroscopies, as well as structurally with XRD, BET, TEM and SEM techniques. Perovskites reside within the pores of the final dried samples, where degradation protection is provided from chemicals, including water. Moreover, the final white powder like composites exhibit naked-eye visible luminescence as well as electroluminescence under daylight.
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