Journal
JOURNAL OF MATERIALS CHEMISTRY C
Volume 7, Issue 8, Pages 2394-2400Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c9tc00067d
Keywords
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Funding
- Royal Society
- EPSRC [EP/I012591/1, EP/N035496/1, EP/P02744X/2, EP/L004461/1]
- EPSRC Manufacturing fellowship [EP/N01202X/2]
- EPSRC [EP/P02744X/1, EP/N035496/2, EP/R03480X/1, EP/N01202X/2, EP/N035496/1, EP/P02744X/2, EP/I012591/1, EP/L004461/1] Funding Source: UKRI
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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, the photoluminescence 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.
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