Results 151 to 160 of about 119,970 (362)
Advanced Optical Materials, EarlyView.A surface passivation strategy using yttrium acetate to suppress Mg ion migration from the ZnMgO electron transport layer is proposed. This treatment restores oxygen vacancies on the ZnMgO surface, enhancing device stability. The Cd‐free quantum dot light‐emitting diodes demonstrate a 65.5% increase in operational lifetime with an external quantum ...
Hansol Choi +3 more
wiley +1 more source
Electronic Properties of Tin and Bismuth from Angular Correlation of Annihilation Photons [PDF]
, 1969 Ole Mogensen, G. Trumpy
openalex +1 more source
Advanced Optical Materials, EarlyView.Femtosecond TAS measurements on perovskite nanocrystals reveal how the one‐photon absorption cross‐section scales linearly with nanocrystal volume, independent of shape. In contrast, biexciton Auger lifetimes vary strongly with shape and remain constant in the weak confinement regime for nanocrystals larger than the exciton Bohr radius, offering new ...
Andreas Singldinger +8 more
wiley +1 more source
Cosmic Gamma Rays from Metagalactic Proton–Antiproton Annihilation [PDF]
, 1969 F. W. Stecker
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Proceedings of the National Academy of Sciences of the United States of America, 2017 G. Ceballos, P. Ehrlich, R. Dirzo
semanticscholar +1 more source
Advanced Optical Materials, EarlyView.The TTA‐UC from visible/UVA to UVB/C is demonstrated by combining a heptazine derivative with TIPS‐benzene‐based emitters. The heptazine derivative has a triplet energy level high enough to sensitize the emitters. The introduction of bulky tert‐butyl substituents to the TIPS‐benzene emitter is a simple and powerful strategy for enhancing the TTA‐UC ...
Masanori Uji +5 more
wiley +1 more source
Advanced Optical Materials, EarlyView.We report spiro‐configured hosts constructed on the assembly of a quinolinoacrdine unit and different fluorene positional isomers for high‐performance blue MR‐TADF Organic Light‐Emitting Diodess. The v‐DABNA:CN‐Ir emissive layer combination with SQA‐4‐FPOPh2 as host shows a narrowband emission peak and a high maximum external quantum efficiency of 22.9%
Kelvine Letellier +7 more
wiley +1 more source
Relation between two-body annihilation and backward elastic scattering at high energy [PDF]
, 1964 A. Białas, O. Czyžewski
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Thermally Activated Delayed Fluorescence and Beyond. Photophysics and Material Design Strategies.
Advanced Photonics Research, EarlyView.Photophysical properties of TADF molecules are determined by characteristic parameters that are discussed in detail(. Moreover, using femtosecond time‐resolved spectroscopy, quantum mechanical considerations, and state‐of‐art calculations, deeper understanding allows us to design breakthrough Cu(I) and organic TADF‐ OLED materials. For the latter ones,
Hartmut Yersin, Uwe Monkowius
wiley +1 more source