Inkjet-Printed and Nanopatterned Photonic Phosphor Motifs with Strongly Polarized and Directional Light-Emission
Herein a versatile and scalable method to prepare periodically corrugatednanophosphor surface patterns displaying strongly polarized and directionalvisible light emission is demonstrated. A combination of inkjet printing andsoft lithography techniques is employed to obtain arbitrarily shaped lightem...
| Autores: | , , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2023 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/337962 |
| Acceso en línea: | http://hdl.handle.net/10261/337962 |
| Access Level: | acceso abierto |
| Sumario: | Herein a versatile and scalable method to prepare periodically corrugatednanophosphor surface patterns displaying strongly polarized and directionalvisible light emission is demonstrated. A combination of inkjet printing andsoft lithography techniques is employed to obtain arbitrarily shaped lightemitting motifs. Such predesigned luminescent drawings, in which thepolarization and angular properties of the emitted light are determined andfinely tuned through the surface relief, can be used as anti-counterfeitinglabels, as these two specific optical features provide additional means toidentify any unauthorized or forged copy of the protected item. The potentialof this approach is exemplified by processing a self-standingphotoluminescent quick response code whose emission is both polarized anddirectionally beamed. Physical insight of the mechanism behind thedirectional out-coupled photoluminescence observed is provided byfinite-difference time-domain calculations. |
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