Articles with "high external" as a keyword



Transformation from Nonthermally Activated Delayed Fluorescence Molecules to Thermally Activated Delayed Fluorescence Molecules

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Published in 2020 at "Advanced Optical Materials"

DOI: 10.1002/adom.202001025

Abstract: A novel molecular design approach transforming nonthermally activated delayed fluorescence (TADF) molecules to TADF molecules is developed for high external quantum efficiencies in TADF devices by utilizing an opened double emission process through selective twisting… read more here.

Keywords: high external; delayed fluorescence; fluorescence molecules; nonthermally activated ... See more keywords

High External Quantum Efficiency Light-Emitting Diodes Enabled by Advanced Heterostructures of Type-II Nanoplatelets

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Published in 2023 at "ACS Nano"

DOI: 10.1021/acsnano.3c00046

Abstract: Colloidal quantum wells (CQWs), also known as nanoplatelets (NPLs), are exciting material systems for numerous photonic applications, including lasers and light-emitting diodes (LEDs). Although many successful type-I NPL-LEDs with high device performance have been demonstrated,… read more here.

Keywords: quantum; emitting diodes; type npls; cdse ... See more keywords

K2SiF6:Mn4+ red-luminescent crystals with high external quantum efficiency (EQEmax of 78%) and high thermal quenching temperature (T1/2 > 500 K) enabling high brightness warm white LEDs

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Published in 2024 at "Journal of Materials Chemistry C"

DOI: 10.1039/d4tc04035j

Abstract: Mn4+-activated fluoride phosphor is one of the crucial red-emitting phosphors for white lighting systems driven by light-emitting diodes (LEDs). In this study, we successfully synthesized high-quality K2Si1-xF6:xMn4+ (x = 0.03–0.70)... read more here.

Keywords: crystals high; mn4 red; k2sif6 mn4; high external ... See more keywords