Results 231 to 240 of about 636,245 (282)

Uncovering the Origin of Efficiency Roll‐Off in TADF OLEDs

open access: yesAdvanced Functional Materials, EarlyView.
OLEDs based on thermally activated delayed fluorescent (TADF) materials often suffer from a severe drop in efficiency at high brightness levels. This work presents a technique to uncover the source of this efficiency drop, and quantifies the exciton‐exciton and exciton‐polaron annihilation processes responsible for efficiency losses in our TADF OLEDs ...
Liam G. King   +3 more
wiley   +1 more source

Trifluoromethoxylated Electron Acceptor Enabling Ternary Organic Solar Cells with over 20% Power Conversion Efficiency

open access: yesAdvanced Functional Materials, EarlyView.
ABSTRACT In this work, we introduce a trifluoromethoxy (OCF3) group as a pseudo‐halogen terminal group design for non‐fullerene acceptors, which combines strong inductive electron‐withdrawing ability with moderate resonance donation. The as‐synthesized BTP‐OCF3, when benchmarked against its methoxy analogue BTP‐OCH3, demonstrates narrowed bandgap ...
Chunliang Li   +16 more
wiley   +1 more source

Asymptotic behavior of reaction-diffusion equations with time-dependent advection term

open access: yesDiscrete and Continuous Dynamical Systems - S
Mirelson M. Freitas   +2 more
openaire   +1 more source

Multiphase Ozone Oxidation of Catechol and Its Products after OH- and Light-Driven Processing. [PDF]

open access: yesACS Earth Space Chem
Liyanage SM   +6 more
europepmc   +1 more source

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