A novel stable and efficient light-emitting solid based on saponite and luminescent POSS
- 10 October 2012
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of Materials Chemistry
- Vol. 22 (48), 25254-25261
- https://doi.org/10.1039/c2jm34230h
Abstract
A novel hybrid organic/inorganic clay prepared by intercalation of a luminescent polyhedral oligomeric silsesquioxane (POSS) in a nanosized synthetic saponite clay was synthesized and characterized by a multidisciplinary approach including XRD, HRTEM, TGA and UV-Vis and photoluminescence spectroscopies. The luminescent POSS was obtained by linking a cyanine (IRIS3COOH) on the POSS cage functionalized with two amino groups (sample named IRIS3-POSS-NH2). One of the amino groups served for the inclusion in the saponite interlayer space. The final hybrid material (IRIS3-POSS-NH3/SAP), characterized by high quantum efficiency and improved thermal and photochemical stability with respect to the pure luminescent POSS and dye, was successfully tested as the luminescent layer in a hybrid light emitting diode (HLED) device.Keywords
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