Results 91 to 100 of about 5,106,924 (122)
Advanced Optical Materials, Volume 14, Issue 34, 11 September 2026.Multiple‐resonance thermally activated delayed fluorescent (MR‐TADF) material absorbs two near‐infrared 760 nm photons with cross‐section up to 156 GM, emit 26 nm narrowband green light at 491 nm with unity luminescence quantum yield and electroluminescence efficiency up to 25.2% in organic light‐emitting diode.
Ikechukwu D. Nwosu +12 more
wiley +1 more source
Advanced Optical Materials, Volume 14, Issue 34, 11 September 2026.Carbene‐metal‐amide (CMA) organic LEDs suffer from poor stability despite submicrosecond excited‐state lifetimes. Here, we show that electron accumulation on CMA emitters triggers bond cleavage, while poor electron transport amplifies OLED instability.
Rishabh Saxena +8 more
wiley +1 more source
Advanced Science, Volume 13, Issue 53, 24 September 2026.Sinapic acid, a bio‐derived phytophenol, serves as a multifunctional additive for methylammonium (MA)‐free Sn─Pb perovskites, coordinating with Sn2+/Pb2+ to regulate crystallization and mitigate defects. Its electron‐rich groups suppress Sn oxidation and passivate deep traps, improving band alignment and reducing VOC losses. Resulting devices achieve a
Seojun Lee +12 more
wiley +1 more source
Mixed‐Polymer Hole Transport Layers Reinforce Au‐Anode Top Emitting Perovskite Light Emitting Diodes
Advanced Science, Volume 13, Issue 50, 7 September 2026.Au‐anode corrosion is shown to occur rapidly under voltage bias in MAPbI3 perovskite LEDs. Resulting Au+ migration quickly leads to device shorting and unstable emission during constant current driving. We demonstrate that using a simple mixed‐polymer hole transport layer containing polyTPD and PVK can reduce Au‐corrosion and stabilize LED operation ...
James C. Loy +5 more
wiley +1 more source
Advanced Electronic Materials, Volume 12, Issue 18, 21 September 2026.An experimentally validated optoelectronic device model is presented to describe the efficiency and roll‐off behavior of single‐layer TADF OLEDs. By coupling charge transport, exciton dynamics, and optical outcoupling, the model reproduces the External Quantum Efficiency (EQE) across different emission layer thicknesses and temperatures, offering ...
Jawid Nikan +4 more
wiley +1 more source
Selenocyanate Driven Organic Cations Homogenization in Wide‐Bandgap Perovskite
Advanced Energy Materials, Volume 16, Issue 36, 23 September 2026.Selenocyanate pseudohalide doping stabilizes 1.66 eV wide‐bandgap formamidinium (FA)‐based perovskite lattices via strong FA+ hydrogen bonding and matched ionic radii. Uniform cation distribution and suppressed ion migration reduces defect losses, delivering >24% single‐junction efficiency and 32.66% perovskite/silicon tandem performance with ...
Zhi‐Wen Gao +6 more
wiley +1 more source
Engineering Reports, Volume 8, Issue 9, September 2026.Indium phosphide quantum dots enable cadmium‐free light‐emitting devices through controlled quantum confinement, defect passivation, and core/shell engineering. Integrated advances in charge transport, photonic design, and scalable processing are accelerating the development of high‐efficiency, color‐pure, and stable InP QLED technologies.
Mohamed Abu Shuheil +8 more
wiley +1 more source
Single-photon-emitting diode at liquid nitrogen temperature
, 2008 We report on the study of a single-photon-emitting diode at 77 K. The device is composed of InAs/GaAs quantum dots embedded in the i-region of a p-i-n diode structure. The high signal to noise ratio of the electroluminescence, as well as the small second
Dou XM +9 more
core
Tin‐based perovskite light‐emitting diodes: Progress and perspective
InfoScience, Volume 3, Issue 3, September 2026.This review assesses tin‐based perovskite light‐emitting diodes (PeLEDs), focusing on the limitations of Sn2+ oxidation–induced defects and uncontrolled crystallization. By evaluating advanced device engineering and structural innovations, this article highlights their viability in narrowband pure‐red displays and near‐infrared optical communication ...
Wenhao Bai +7 more
wiley +1 more source
Small, Volume 22, Issue 50, 7 September 2026.A materials‐to‐device strategy enabling high‐efficiency, longer‐lifetime narrowband red OLEDs. Dibenzofuran‐integrated BNO MR‐TADF emitters provide tunable red emission (611–633 nm) with high color purity. Exciplex‐assisted PSF devices achieve 31.6% EQE, <1% roll‐off at 5000 cd m−2, and LT90 584 h @ 5000 cd/m2.
Meghana Tirupati +7 more
wiley +1 more source