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  • Foldable semi-ladder polymers: novel aggregation behavior and high-performance solution-processed organic light-emitting transistors
Title: Foldable semi-ladder polymers: novel aggregation behavior and high-performance solution-processed organic light-emitting transistors
A critical issue in developing high-performance organic light-emitting transistors (OLETs) is to balance the trade-off between charge transport and light emission in a semiconducting material. Although traditional materials for organic light-emitting diodes (OLEDs) or organic field-effect transistors (OFETs) have shown modest performance in OLET devices, design strategies towards high-performance OLET materials and the crucial structure–performance relationship remain unclear. Our research effort in developing cross-conjugated weak acceptor-weak donor copolymers for luminescent properties lead us to an unintentional discovery that these copolymers form coiled foldamers with intramolecular H-aggregation, leading to their exceptional OLET properties. An impressive external quantum efficiency (EQE) of 6.9% in solution-processed multi-layer OLET devices was achieved.  more » « less
Award ID(s):
1834750
PAR ID:
10214821
Author(s) / Creator(s):
; ; ; ; ; ; ;
Date Published:
Journal Name:
Chemical Science
Volume:
11
Issue:
41
ISSN:
2041-6520
Page Range / eLocation ID:
11315 to 11321
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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