Results 71 to 80 of about 46,590 (254)

Exciton Binding Energy of Phosphorescent Emitter Molecules in Organic Light‐Emitting Diodes

Advanced Functional Materials, EarlyView.
Energy level alignment is key to efficient OLED design, yet determining LUMO energies remains challenging. A methodology based on field‐induced dissociation and kinetic Monte Carlo simulations is presented to extract LUMO energies of iridium‐based phosphorescent emitters from their exciton binding energy.
Hiroki Tomita, Lucas R. L. Norg, Patrick Diederen, Clint van Hoesel, Christ H. L. Weijtens, Peter A. Bobbert, Reinder Coehoorn   +6 more
wiley   +1 more source

Bright continuously tunable vacuum ultraviolet source for ultrafast spectroscopy

Communications Physics
Ultrafast electron dynamics drive phenomena such as photochemical reactions, catalysis, and light harvesting. To capture such dynamics in real-time, femtosecond to attosecond light sources are extensively used.
Lucie Jurkovičová, Ltaief Ben Ltaief, Andreas Hult Roos, Ondřej Hort, Ondřej Finke, Martin Albrecht, Ziaul Hoque, Eva Klimešová, Akgash Sundaralingam, Roman Antipenkov, Annika Grenfell, Alexandr Špaček, Wojciech Szuba, Maria Krikunova, Marcel Mudrich, Jaroslav Nejdl, Jakob Andreasson   +16 more
doaj   +1 more source

High-energy, high-peak-power, sub-nanosecond, spatial super-Gaussian 177 nm vacuum ultraviolet laser

High Power Laser Science and Engineering
A high-energy pulsed vacuum ultraviolet (VUV) solid-state laser at 177 nm with high peak power by the sixth harmonic of a neodymium-doped yttrium aluminum garnet (Nd:YAG) amplifier in a KBe2BO3F2 prism-coupled device was demonstrated. The ultraviolet (UV)
Ning Wen, Tian-Hao Lv, Nan Zong, Hong-Wei Gao, Yong Bo, Qin-Jun Peng, Da-Fu Cui, Zu-Yan Xu, Xiao-Yang Wang, Li-Juan Liu, Ru-Kang Li, Nan Wang, Xue-Chun Lin   +12 more
doaj   +1 more source

Resolving the Cu(bdc) Conundrum: Identifying Non‐Porous Packing of Prototypical Coordination‐Network Thin Films Combining Advanced Diffraction Techniques and Computational Modelling

Advanced Functional Materials, EarlyView.
Solution‐processed Cu(bdc) forms prototypical MOF thin films for which a multitude of not fully satisfactory structural models have been suggested. Combining rotating grazing‐incidence diffraction and X‐ray reflectivity on two complementary samples with density‐functional theory, we first discard the previously suggested models and then identify a non ...
Narges Taghizade, Mario Fratschko, Robbin Steentjes, Mercedes Linares‐Moreau, Paolo Falcaro, Christof Wöll, Roland Resel, Egbert Zojer   +7 more
wiley   +1 more source

Inductively Coupled Radio-frequency Plasmas as Solar Vacuum Ultraviolet Simulators

The Astrophysical Journal Supplement Series
The solar vacuum ultraviolet (VUV) is relevant to a variety of astrophysical phenomena. Radio-frequency (RF) plasmas of H _2 and H _2 /inert gas mixtures are convenient sources of VUV for laboratory simulations.
Josef L. Richmond, Joshua R. Machacek, Christine Charles, Roderick W. Boswell   +3 more
doaj   +1 more source

Long‐Range Coordination Environment Modulates Single‐Atom Local States and Systemic Impact on CO2 Photoconversion

Advanced Functional Materials, EarlyView.
Terminal groups on Cu porphyrins modulate the electronic states of single‐atom Cu centers through a long‐range electronic effect, without altering the Cu coordination geometry. Meanwhile, a multi‐descriptor framework is established that incorporates porphyrin regulation, hybrid catalyst properties, and CO2 photoreduction capabilities.
Yi Zhang, Jintao Dong, Xiahe Chen, Xiyang Wang, Tiange Wei, Yue Zhu, Tai‐Sing Wu, Yun‐Fang Yang, Shao‐Yuan Leu, Keke Wang, Yuanbin She, Huaming Li, Jiexiang Xia, Molly Meng‐Jung Li   +13 more
wiley   +1 more source

Resonance Transitions in the Spectra of the Ag6+–Ag8+ Ions

Atoms, 2017
The spectrum of silver, excited in a vacuum spark, was recorded in the region 150–350 Å on a 3-m grazing incidence spectrograph. The resonance 4dk–(4dk−15p + 4dk−14f + 4p54dk+1) was studied in the Ag6+–Ag8+ spectra (Ag VII–Ag IX) with k = 5–3 ...
Alexander Ryabtsev, Edward Kononov
doaj   +1 more source

Gas chromatography-vacuum ultraviolet spectroscopy in petroleum and fuel analysis. [PDF]

Anal Sci Adv, 2023
Kaplitz AS, Schug KA.
europepmc   +1 more source

Nanoengineered Binetworks in Multifunctional Anionic Block Polymer Mesoblends for Improved Mechanical Properties

Advanced Functional Materials, EarlyView.
Mesoblends consist of a nanostructured polymer into which a second polymer is imbibed with a selective solvent. In this work, a solvent‐templatable pentablock terpolymer possessing a sulfonated midblock is modified with a hydrophilic polymer that is photocrosslinked in situ, yielding a hierarchical binetwork.
Kacie M. Wells, Ivan Kuzmenko, Reza A. Ghiladi, Richard J. Spontak   +3 more
wiley   +1 more source

Tailoring Li‐ion Storage and Transport in Two‐Dimensional Conjugated Metal‐Organic Frameworks via Precise Nitrogen Incorporation

Advanced Functional Materials, EarlyView.
Two nitrogen‐doped 2D conjugated metal‐organic frameworks (2D c‐MOFs, namely Cu‐Nx‐OHBA, x = 2 or 4) are synthesized, featuring precise nitrogen incorporation via rational ligand design. The Cu‐Nx‐OHBA 2D c‐MOFs are largely tailorable by varying skeletal nitrogen density, with respect to electrical conductivity, Li‐storage capacitance, and Li‐transport
Xiangyu Li, Shaoze Shi, Fucai Cui, Rashid Iqbal, Pengyu Wang, Tianrui Wu, Jingcheng Hao, Renhao Dong   +7 more
wiley   +1 more source