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
Lead-Free Cesium Thulium Halide Perovskite Microcrystals for Near Ultraviolet Luminescence.
Sign Up to like & getrecommendations! Published in 2023 at "Small"
DOI: 10.1002/smll.202300538
Abstract: Lead halide perovskites attract tremendous research attention due to excellent optoelectronic properties. However, realizing efficient near ultraviolet (NUV) luminescence with these materials is still a big challenge. Herein, a novel rare-earth perovskite cesium thulium chloride… read more here.
Keywords: lead free; halide; cesium thulium; near ultraviolet ... See more keywords
Achieving host-free near-ultraviolet electroluminescence via electronic state engineering with phosphine oxide
Sign Up to like & getrecommendations! Published in 2022 at "Chemical Engineering Journal"
DOI: 10.1016/j.cej.2021.132327
Abstract: Abstract Developing near-ultraviolet (NUV) emitters with board band gap and high photoluminescence quantum efficiency (PLQY) is a formidable challenge for organic light-emitting diode (OLED) applications. Herein, two NUV emitters PhImPOCz and PhImPOtBuCz were designed on… read more here.
Keywords: state; engineering; phosphine oxide; electronic state ... See more keywords
A novel near-ultraviolet-light excitable Eu3+-doped Sr2LaTaO6 red phosphor for white-light-emitting diodes
Sign Up to like & getrecommendations! Published in 2021 at "Optik"
DOI: 10.1016/j.ijleo.2021.166908
Abstract: Abstract A series of Eu3+-activated Sr2LaTaO6 red phosphors were synthesized by the traditional high temperature solid-state reaction process. The structure and photoluminescence properties of the phosphors were characterized using X-ray diffraction (XRD), ultraviolet-visible diffuse reflectance… read more here.
Keywords: near ultraviolet; phosphor; ultraviolet light; sr2latao6 red ... See more keywords
Effect of fluxes on luminescence properties of color-tunable Ba1.3Ca0.7SiO4:Eu2+, Mn2+ Phosphor for Near-Ultraviolet White-LEDs
Sign Up to like & getrecommendations! Published in 2020 at "Materials Research Bulletin"
DOI: 10.1016/j.materresbull.2020.110808
Abstract: Abstract Eu2+/Mn2+-codoped Ba1.3Ca0.7SiO4 (BCS), a promising single-phase and white-light-emitting phosphor, is prepared by the solid-state reaction at a calcination temperature of 1000 °C for 2 h by adding SrCl2, CaCl2, KCl, NaCl, NH4Cl, Li2CO3, BaF2,… read more here.
Keywords: mn2; ba1 3ca0; eu2 mn2; near ultraviolet ... See more keywords
Synthesis and photoluminescence properties of Eu2+ activated CaO ceramic powders for near-ultraviolet chip based white light emitting diodes
Sign Up to like & getrecommendations! Published in 2017 at "Optical Materials"
DOI: 10.1016/j.optmat.2017.03.051
Abstract: Abstract In this paper, we synthesized series of Eu 2+ activated CaO ceramic powders by conventional solid state reaction. Using NH 4 Cl as a reducing additives, the Eu 3+ has been successfully reduced to… read more here.
Keywords: chip based; cao ceramic; activated cao; near ultraviolet ... See more keywords
Fabrication of vertically conducting near ultraviolet LEDs on SiC substrates
Sign Up to like & getrecommendations! Published in 2019 at "Superlattices and Microstructures"
DOI: 10.1016/j.spmi.2018.09.027
Abstract: Abstract In this work, GaN-based vertically conducting near ultraviolet light-emitting diodes (LEDs) were grown on n-SiC substrates by metal-organic chemical vapor deposition. 10 pairs or 20 pairs of Si-doped n-Al0.2Ga0.8N/n-GaN distributed Bragg reflectors (DBRs) were… read more here.
Keywords: ultraviolet leds; conducting near; near ultraviolet; sic substrates ... See more keywords
Universal Qualification of Near Ultraviolet Circular Dichroism Spectroscopy: Method Performance Parameters and Limits of Detection for Structural Differences.
Sign Up to like & getrecommendations! Published in 2020 at "Journal of pharmaceutical sciences"
DOI: 10.1016/j.xphs.2020.09.038
Abstract: Analytical methods must be qualified as part of the method development lifecycle for product characterization of biotherapeutics. For higher order structure characterization methods, such as near ultraviolet circular dichroism spectroscopy, qualification is performed to determine… read more here.
Keywords: product; method; ultraviolet circular; spectroscopy ... See more keywords
Near-Ultraviolet Indoor Black Light-Harvesting Perovskite Solar Cells
Sign Up to like & getrecommendations! Published in 2022 at "ACS Applied Energy Materials"
DOI: 10.1021/acsaem.2c01560
Abstract: Indoor light-energy-harvesting solar cells have long-standing history with perovskite solar cells (PSCs) recently emerging as potential candidates with high power conversion efficiencies (PCEs). However, almost all of the reported studies on indoor light-harvesting solar cells… read more here.
Keywords: solar cells; energy; perovskite solar; near ultraviolet ... See more keywords
Efficient near ultraviolet emissive (CIEy < 0.06) organic light-emitting diodes based on phenanthroimidazole–alkyl spacer–carbazole fluorophores: experimental and theoretical investigation
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Materials Chemistry C"
DOI: 10.1039/d0tc03720f
Abstract: Efficient near ultraviolet light-emitting materials are of particular importance in organic light emitting devices (OLEDs) because of their potential for application in high-quality flat panel displays and white OLEDs. read more here.
Keywords: light; organic light; ultraviolet emissive; light emitting ... See more keywords
Deep red SrLaGa3O7:Mn4+ for near ultraviolet excitation of white light LEDs
Sign Up to like & getrecommendations! Published in 2021 at "Journal of Materials Chemistry C"
DOI: 10.1039/d0tc05744d
Abstract: Red luminescent phosphor SrLaGa3O7:Mn4+ was prepared by the traditional high-temperature solid-state reaction. The structural characteristics, luminescence properties and the performance of this phosphor were investigated in light-emitting diode devices. Deep red emission peaking at ∼715… read more here.
Keywords: near ultraviolet; deep red; srlaga3o7 mn4; phosphor ... See more keywords