Implementing fluorescent MOFs as down-converting layers in hybrid light-emitting diodes

Angioni, E. , Marshall, R. J., Findlay, N. J. , Bruckbauer, J., Breig, B., Wallis, D. J., Martin, R., Forgan, R. S. and Skabara, P. J. (2019) Implementing fluorescent MOFs as down-converting layers in hybrid light-emitting diodes. Journal of Materials Chemistry C, 7, pp. 2394-2400. (doi: 10.1039/C9TC00067D)

Abstract

One of the most important non-radiative relaxation processes that limits the quantum yield of a fluorophore is related to aggregation of the molecules in the solid-state causing excimer quenching. To limit this quenching mechanism, the fluorophore can be contained within a well-ordered 3D system that minimises aggregation through rigid bonds and spatial separation in a defined topological construct. Herein, the synthesis, characterisation and application as a down-converter of a new luminescent 3D material (MOF-BTBMBA) that incorporates a building block based on a benzothiadiazole (BT) derivative (BTBMBA) in a metal-organic framework (MOF) is presented. Notably, photoluminescent quantum yield and hybrid LED performance are significantly improved for the MOF-based device compared to that prepared with the free ligand, highlighting the effectiveness of the rigid scaffold arrangement.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Skabara, Professor Peter and Forgan, Professor Ross and Angioni, Mr Enrico and Findlay, Dr Neil and Marshall, Mr Ross James
• Authors: Angioni, E., Marshall, R. J., Findlay, N. J., Bruckbauer, J., Breig, B., Wallis, D. J., Martin, R., Forgan, R. S., and Skabara, P. J.
• College/School: College of Science and Engineering > School of Chemistry
• Journal Name: Journal of Materials Chemistry C
• Publisher: Royal Society of Chemistry
• ISSN: 2050-7526
• ISSN (Online): 2050-7526
• Published Online: 30 January 2019
• Copyright Holders: Copyright © 2019 The Royal Society of Chemistry
• First Published: First published in Journal of Materials Chemistry C 7:2394-2400
• Publisher Policy: Reproduced in accordance with the copyright policy of the publisher

Project Code	Award No	Project Name	Principal Investigator	Funder's Name	Funder Ref	Lead Dept
303848	0	Molecular assembly of spintronic circuits with DNA	Peter Skabara	Engineering and Physical Sciences Research Council (EPSRC)	EP/N035496/2	Chemistry
303776	0	Light-controlled manufacturing of semiconductor structures: a platform for next generation processing of photonic devices	Peter Skabara	Engineering and Physical Sciences Research Council (EPSRC)	EP/P02744X/2	Chemistry
61947	1	Biomimetic guest selective metal-organic frameworks: catalysis and self-assembly	Ross Forgan	Engineering and Physical Sciences Research Council (EPSRC)	EP/L004461/1	CHEM - CHEMISTRY