Results 141 to 150 of about 30,403 (309)

Purely organic room temperature phosphorescent materials toward organic light‐emitting diodes

open access: yesFlexMat
Purely organic room temperature phosphorescence (RTP) materials have shown broad application prospects in organic light‐emitting diodes (OLEDs) due to their theoretical 100% exciton utilization, cost‐effectiveness, and flexibility.
Hui Li   +6 more
doaj   +1 more source

Potential to Lighting of Organic Light-emitting Diodes

open access: yesIEEJ Transactions on Fundamentals and Materials, 2008
The organic light-emitting diodes (OLEDs) have multi-layer structure consisting of organic fluorescent or phosphorescent dyes. Since OLEDs have such advantages as light-weight, surface emission, fast response and so on, they are a prospective component of future flat-display.
openaire   +2 more sources

Novel thieno-[3,4-b]-pyrazine derivatives for non-doped red organic light-emitting diodes

open access: yes, 2013
Two novel red fluorescent thieno-[3,4-b]-pyrazine-cored molecules containing tetraphenylethylene as peripheral groups, T-TP and T-TP1, are designed and synthesized.
Li, Qing, Duan, Yongheng, Li, Jiuyan
core   +1 more source

Naphthyridine‐Based Donor–Acceptor Boron Difluoride Complexes Targeting Red Emission in Organic Light‐Emitting Diodes

open access: yesAdvanced Optical Materials, EarlyView.
Four donor–acceptor boron difluoride complexes based on triphenylamine donor and a naphthyridine acceptor units were synthesized, studied, and applied as OLED emitters. They exhibit pronounced intramolecular charge transfer character, balanced charge transport properties, and tunable emission. Near‐unity PLQYs are achieved for selected compounds, while
Omar Lahna   +8 more
wiley   +1 more source

Surface‐Plasmon‐Coupled Blue InGaN/GaN Micro‐LEDs with Oxide–Metal–Oxide Capping Layer Compatible to Chip Fabrication Process

open access: yesAdvanced Optical Materials, EarlyView.
A sidewall‐integrated oxide–metal–oxide architecture is demonstrated to overcome efficiency degradation in ultra‐small InGaN/GaN micro‐LEDs. Conformal Al2O3 passivation combined with plasmonic Ag nanoparticles enables localized surface plasmon–exciton coupling, converting surface‐related nonradiative losses into radiative emission.
Pil‐Kyu Jang   +17 more
wiley   +1 more source

Recent advances in materials for organic light emitting diodes

open access: yesBeilstein Journal of Organic Chemistry, 2018
Eli Zysman-Colman
doaj   +1 more source

Energy efficient innovative lighting and energy supply solutions in developing countries

open access: yes, 2007
The vast majority of the rural population in the de veloping countries is out of reach of electricity and hence has to depend on the tradi tional fuels to fulfil the daily energy needs.
Halonen, L.   +3 more
core  

Bridging Boltzmann and Non‐Boltzmann Optical Thermometry Enabled by Multimodal Perovskite Nanocrystals

open access: yesAdvanced Optical Materials, EarlyView.
Multimodal perovskite nanocrystals enable optical thermometry across multiple excitation and emission regimes, spanning the UV–Vis–NIR spectral range. By combining upconversion, downshifting, and persistent luminescence, the platform bridges conventional Boltzmann and non‐Boltzmann thermometric approaches.
Adrian Drozdowski   +2 more
wiley   +1 more source

Neodymium‐Doped Nanocrystals for Sensing Cellular Temperature at the Nanoscale

open access: yesAdvanced Optical Materials, EarlyView.
Neodymium‐doped NaYF4 nanocrystals are engineered as bright, biocompatible nanothermometers for intracellular temperature mapping. Their ratiometric near‐infrared emission enables highly sensitive, nanoscale thermal readouts in living cells. Combined with gold nanostars for photothermal therapy, they reveal pronounced subcellular heating heterogeneity ...
Maria Bravo   +13 more
wiley   +1 more source

Hybrid Organic-Inorganic Light Emitting Diodes

open access: yesEPJ Web of Conferences, 2015
Vitukhnovsky A.G.
doaj   +1 more source

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