Projektbeschreibung
Hyperfluoreszenz mit MOF für OLED der nächsten Generation
Der Weltmarkt für organische Leuchtdioden (OLED) wächst rasant und die Technologie wurde auf die aktuelle vierte Generation mit Hyperfluoreszenz (HF) weiterentwickelt. Bei HF-OLED bestehen aufgrund der verwendeten Werkstoffe jedoch Probleme mit molekularer Aggregation und der Effizienz der Energieübertragung. Im ERC-finanzierten Projekt HyperFMOF werden metallorganische Gerüstverbindungen (MOF) als innovative Plattformen eingesetzt, um die Entwicklung von neuen HF-Werkstoffen zu ermöglichen, diese zwei Herausforderungen zu überwinden und effizientere OLED zu schaffen. Das Team wird die erforderlichen Werkstoffe synthetisieren und charakterisieren und dann mit ihnen innovative MOF fertigen, die als emittierende Schichten in innovative Hochleistungs-OLED eingesetzt werden.
Ziel
Organic light emitting diodes (OLEDs) are among the most efficient optoelectronic devices for multiple displays and illumination technologies. Their superior performance over conventional sources has boosted this discipline, reaching to what is considered as the 4th generation of OLEDs. These OLEDs are based on a novel concept known as hyperfluorescence (HF), in which a thermally activated delayed fluorescent (TADF) material acts as sensitizer of a narrow-band fluorescent emitter via Förster resonance energy transfer (FRET). However, HF-OLEDs still present intrinsic limitations mostly related to molecular aggregation of TADF compounds, and the FRET efficiency.
Metal-organic frameworks (MOFs) are excellent platforms for developing novel HF materials to be used in the fabrication of more efficient OLEDs. Their ordered structure, joint with the possibility of using TADF molecules as organic linkers, will minimize the issues associated with molecular aggregation, while enhancing the TADF mechanism by reducing molecular motions. Moreover, their porous structure allows for the encapsulation of narrow-band emitters (HF guest@TADF-MOFs), shortening the distances between the donor (TADF-MOF) and the acceptor (narrow-band emitter), and thus, increasing the FRET efficiency.
HyperFMOF intends to fabricate and fully characterize novel HF guest@TADF-MOFs, which will be subsequently integrated as emissive layers of high-performance OLEDs.
This project is multidisciplinary and highly ambitious, and the overall aim will be achieved by: the synthesis and characterization of unexplored TADF linkers, TADF-MOFs and HF guest@TADF-MOFs; the in-depth investigation of their spectroscopic and photodynamics properties; and the manufacturing, characterization and optimization of novel HF guest@TADF OLEDs.
HyperFMOF will open new avenues in different research areas from synthesis to spectroscopy and OLED technology, and will overcome the limitations of preceding OLED generations.
Schlüsselbegriffe
Programm/Programme
- HORIZON.1.1 - European Research Council (ERC) Main Programme
Thema/Themen
Finanzierungsplan
HORIZON-ERC - HORIZON ERC GrantsGastgebende Einrichtung
13071 Ciudad Real
Spanien