Dual Passivation of Perovskite Defects for Light‐Emitting Diodes with External Quantum Efficiency Exceeding 20%
Sign Up to like & getrecommendations! Published in 2020 at "Advanced Functional Materials"
DOI: 10.1002/adfm.201909754
Abstract: Solution‐processed metal halide perovskites (MHPs) have attracted much attention for applications in light‐emitting diodes (LEDs) due to their wide color gamut, high color purity, tunable emission wavelength, balanced electron/hole transportation, etc. Although MHPs are very… read more here.
Keywords: dual passivation; light emitting; passivation; emitting diodes ... See more keywords
Inheriting the Characteristics of TADF Small Molecule by Side-Chain Engineering Strategy to Enable Bluish-Green Polymers with High PLQYs up to 74% and External Quantum Efficiency over 16% in Light-Emitting Diodes.
Sign Up to like & getrecommendations! Published in 2017 at "Advanced materials"
DOI: 10.1002/adma.201604223
Abstract: Thermally activated delayed fluorescence (TADF) polymers are designed and synthesized by grafting the TADF emitter to the side chain of the polycarbazole backbone. By employing these TADF polymers with large ratio of delayed fluorescence component… read more here.
Keywords: external quantum; quantum efficiency; side chain; emitting diodes ... See more keywords
Quenching-Resistant Multi-Resonance TADF Emitter Realizes 40% External Quantum Efficiency in Narrowband Electroluminescence at High Doping Level.
Sign Up to like & getrecommendations! Published in 2021 at "Advanced materials"
DOI: 10.1002/adma.202106954
Abstract: Multi-resonance thermally activated delayed fluorescence (MR-TADF) emitters manifest great potential for organic light-emitting diodes (OLEDs) due to their high exciton-utilization efficiency and narrowband emission. Nonetheless, their tendency towards self-quenching caused by strong interchromophore interactions would… read more here.
Keywords: efficiency narrowband; external quantum; multi resonance; tadf ... See more keywords
High‐Performance Narrowband Pure‐Red OLEDs with External Quantum Efficiencies up to 36.1% and Ultralow Efficiency Roll‐Off
Sign Up to like & getrecommendations! Published in 2022 at "Advanced Materials"
DOI: 10.1002/adma.202201442
Abstract: High‐color‐purity blue and green organic light‐emitting diodes (OLEDs) have been resolved thanks to the development of B/N‐based polycyclic multiple resonance (MR) emitters. However, due to the derivatization limit of B/N polycyclic structures, the design of… read more here.
Keywords: ultralow efficiency; red oleds; efficiency roll; external quantum ... See more keywords
Near‐Infrared Light‐Emitting Diodes utilizing a Europium‐Activated Calcium Oxide Phosphor with External Quantum Efficiency of up to 54.7%
Sign Up to like & getrecommendations! Published in 2022 at "Advanced Materials"
DOI: 10.1002/adma.202201887
Abstract: Near‐infrared (NIR) luminescence materials with broadband emissions are necessary for the development of light‐emitting diodes (LEDs) based light sources. However, most known NIR‐emitting materials are limited by their low external quantum efficiency. This work demonstrates… read more here.
Keywords: light emitting; quantum efficiency; near infrared; external quantum ... See more keywords
Approaching the External Quantum Efficiency Limit in 2D Photovoltaic Devices
Sign Up to like & getrecommendations! Published in 2022 at "Advanced Materials"
DOI: 10.1002/adma.202206122
Abstract: 2D transition metal dichalcogenides (TMDs) are promising candidates for realizing ultrathin and high‐performance photovoltaic devices. However, the external quantum efficiency (EQE) and power conversion efficiency (PCE) of most 2D photovoltaic devices face great challenges in… read more here.
Keywords: limit; quantum efficiency; photovoltaic devices; external quantum ... See more keywords
A Wide Bandgap Halide Perovskite Based Self‐Powered Blue Photodetector with 84.9% of External Quantum Efficiency
Sign Up to like & getrecommendations! Published in 2022 at "Advanced Materials"
DOI: 10.1002/adma.202206932
Abstract: A self‐powered, color‐filter‐free blue photodetector (PD) based on halide perovskites is reported. A high external quantum efficiency (EQE) of 84.9%, which is the highest reported EQE in blue PDs, is achieved by engineering the A‐site… read more here.
Keywords: blue photodetector; quantum efficiency; wide bandgap; external quantum ... See more keywords
Highly Efficient Nondoped Near‐Ultraviolet Electroluminescence with an External Quantum Efficiency Greater Than 6.5% Based on a Carbazole–Triazole Hybrid Molecule with High and Balanced Charge Mobility
Sign Up to like & getrecommendations! Published in 2017 at "Advanced Optical Materials"
DOI: 10.1002/adom.201700747
Abstract: Low charge injection and unbalanced carrier transport are unfavorable factors for highly efficient near-ultraviolet (NUV) electroluminescence (EL) emitters. The construction of weak donor- and acceptor-containing fluorophores has been utilized as a common solution to these… read more here.
Keywords: external quantum; high balanced; balanced charge; near ultraviolet ... See more keywords
Investigation of External Quantum Efficiency Roll-Off in OLEDs Using the Mean-Field Steady-State Kinetic Model
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Physical Chemistry C"
DOI: 10.1021/acs.jpcc.0c01863
Abstract: Organic light-emitting diodes (OLEDs) are promising candidates for solid-state lighting but suffer from decreased efficiency at the high current density required for lighting applications. This dec... read more here.
Keywords: state; external quantum; quantum efficiency; efficiency roll ... See more keywords
High Performance Plasmonic Nanolasers with External Quantum Efficiency Exceeding 10.
Sign Up to like & getrecommendations! Published in 2018 at "Nano letters"
DOI: 10.1021/acs.nanolett.8b03890
Abstract: Plasmonic nanolasers break the diffraction limit for an optical oscillator, which brings new capabilities for various applications ranging from on-chip optical interconnector to biomedical sensing and imaging. However, the inevitably accompanied metallic absorption loss could… read more here.
Keywords: quantum efficiency; plasmonic nanolasers; external quantum; high performance ... See more keywords
Implications of Electron Transport Layer and Back Metal Contact Variations in Tin-Lead Perovskite Solar Cells Assessed by Spectroscopic Ellipsometry and External Quantum Efficiency.
Sign Up to like & getrecommendations! Published in 2023 at "ACS applied materials & interfaces"
DOI: 10.1021/acsami.3c01849
Abstract: The structural and optical properties of hybrid organic-inorganic metal halide perovskite solar cells are measured by spectroscopic ellipsometry to reveal an optically distinct interfacial layer among the back contact metal, charge transport, and absorber layers.… read more here.
Keywords: spectroscopic ellipsometry; contact; solar cells; layer ... See more keywords