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Complejos fotorresponsivos con propiedades de transporte de electrones fotocontrolables para dispositivos ópticos y

Cheok-Lam Wong¹, Maggie Ng¹, Eugene Yau-Hin Hong¹

¹Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China.

Journal of the American Chemical Society

|July 3, 2020

Resumen

Los investigadores desarrollaron nuevos complejos fotorresponsivos de aluminio (Alq3) con propiedades fotocrómicas sintonizables. Estos materiales exhiben un mejor transporte de electrones y permiten dispositivos de memoria fotocontrolables, lo que marca un avance significativo en la optoelectrónica.

Área de la Ciencia:

Ciencias de los materiales
Productos electrónicos orgánicos
La fotoquímica

Sus antecedentes:

Tris ((8-hidroxiquinolinato) aluminio ((III) (Alq3) es un material ampliamente utilizado en la electrónica orgánica.
El desarrollo de materiales fotorresponsivos es crucial para las aplicaciones electrónicas avanzadas.
La modulación de las propiedades del material con la luz ofrece nuevas funcionalidades del dispositivo.

Objetivo del estudio:

Diseñar y sintetizar nuevos complejos fotorresponsivos de Alq3.
Investigar el impacto de las unidades fotocrómicas en las propiedades de Alq3.
Para demostrar el transporte de electrones fotocontrolables y dispositivos de memoria.

Principales métodos:

Incorporación de unidades de dietienileto fotocromáticas en el marco de Alq3.
Reacciones de fotociclado para modular las propiedades del material.
Fabricación y caracterización de dispositivos de sólo electrones y dispositivos de memoria resistiva.

Principales resultados:

Se han sintetizado con éxito complejos de Alq3 con comportamiento fotocrómico sintonizable.
Lograr propiedades mejoradas de transporte de electrones y movilidad de electrones fotointercambiables.
Dispositivos de memoria resistiva procesables en solución demostrados con comportamiento de memoria binaria fotocontrolable, alta relación encendido/apagado y larga retención.

Conclusiones:

Este trabajo presenta los primeros materiales fotorresponsivos de transporte de electrones basados en Alq3.
Se han desarrollado dispositivos de memoria óptica y resistiva basados en Alq3 procesables en solución con rendimiento fotocontrolable.
La estrategia de diseño racional ofrece un camino para futuros materiales electrónicos orgánicos fotorresponsivos.

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