Results 101 to 110 of about 8,906 (257)

Hierarchy of Sum Rules for Oscillator Strengths

, 2018
It is shown that the well known sum rules for oscillator strengths for Hydrogen atom can be generalised to a whole class of sum rules. The sum rules have contributions from the discrete and the continuum parts of the spectrum neither of which can be calculated in closed analytical form but can be calculated numerically.
openaire   +3 more sources

Field‐Frustrated Cooperative Distortions: Suppressing Jahn‐Teller Ordering via Microwave Annealing

Advanced Science, EarlyView.
Microwave annealing decouples local Jahn‐Teller distortions from long‐range cooperative ordering in CuFe2O4, stabilizing a metastable cubic phase that remains locally distorted yet globally symmetry‐frustrated. Synchrotron XRD, PDF, XPS, and in situ thermal cycling reveal how non‐equilibrium MW‐phonon interactions suppress cooperative orbital‐lattice ...
Daryoosh Vashaee, Kelvin Dsouza
wiley   +1 more source

Probing nearby molecular vibrations with lanthanide-doped nanocrystals.

Nanoscale, 2023
Mangnus MJJ, Benning VRM, Baumgartner B, Prins PT, van Swieten TP, Dekker AJH, van Blaaderen A, Weckhuysen BM, Meijerink A, Rabouw FT.   +9 more
europepmc   +1 more source

In Situ Confinement of 0D Halometallates Within Deep Eutectic Solvents: From Systematic Screening to Metal‐Tunable Luminescence for Anti‐Counterfeiting Eutectogels

Advanced Science, EarlyView.
We report photostable, photoluminescent deep eutectic solvents (DESs) powered by in situ‐formed zero‐dimensional (0D) halometallates. Stabilized by microenvironment‐controlling hydrogen bond acceptor (HBA) and donor (HBD) networks, these DESs exhibit vibrant, metal ion‐tunable emission (PLQY = 60.2%).
Jeesu Moon, Minkyu Jung, Woojin Jung, Jaeyune Ryu, Jae‐Seung Lee   +4 more
wiley   +1 more source

Oscillator strengths and collision strengths for S II

The Astrophysical Journal, 1983
Y. K. Ho, R. J. W. Henry
openaire   +1 more source

Computation‐Guided Control of Excited‐State Deactivation through Modulation of Conical‐Intersection Accessibility by Donor–Acceptor Asymmetry in Bridged Stilbene AIE Luminogens

Advanced Science, EarlyView.
Donor–acceptor asymmetry modulates conical‐intersection accessibility and topology in bridged stilbenes, providing mechanistic insight into excited‐state deactivation and aggregation‐induced emission (AIE). ABSTRACT A computation‐guided investigation of asymmetric donor–acceptor bridged stilbenes reveals structure–property relationships governing ...
Takuya Tanaka, Satoshi Suzuki, Hirosato Koyanagi, Kiyoshi Miyata, Riki Iwai, Kazunobu Igawa, Ken Onda, Ben Zhong Tang, Gen‐ichi Konishi   +8 more
wiley   +1 more source

Donor Extended Blue TADF Dendrimer for High‐Performance Solution‐Processed OLEDs

Advanced Science, EarlyView.
A dendronized MR‐TADF emitter, DOBNA‐SpAc‐DCz, was designed to improve solubility, hole transport, and exciton dynamics for solution‐processed OLEDs. Incorporation of ter(tert‐butylcarbazole) dendrons decreases ΔEST and accelerates RISC, yielding short delayed lifetimes (∼2 µs).
Mahni Fatahi, Yuka Yasuda, Ryo Kondo, Hironori Kaji, Eli Zysman‐Colman   +4 more
wiley   +1 more source

New experimental and theoretical energy levels, lifetimes, and oscillator strengths in singly ionised zirconium

Astronomy & Astrophysics
Context. Neutron-capture elements are believed to make up almost all elements heavier than iron in the periodic table. By studying the abundance of these elements throughout the Galaxy, it is possible to put constraints on how and where neutron-capture ...
Burheim M., Engström L., Lundberg H., Hartman H., Palmeri P., Quinet P., Nilsson H.   +6 more
doaj   +1 more source

Efficient Concentration and Complete Destruction of Short‐Chain and Emerging PFAS in Contaminated Water via Integrated Interface Engineering‐Enhanced Carbon Felt Sorption and Photochemical Processes

Advanced Science, EarlyView.
A closed‐loop “Concentrate‐Destroy” strategy is presented for completely eliminating short‐chain and emerging PFAS, in which the new 3D PPy@P‐CF is used for efficiently concentrating PFAS and Cu2+‐mediated photodegradation is applied for the completely destroying PFAS in the sorbent regeneration eluent.
Hao Yu, Jialei Guo, Peng Zhang, Hongyi Li, Feng He, Hongwen Sun   +5 more
wiley   +1 more source

Study of atomic structures of Li-like Al in dense plasmas

四川大学学报. 自然科学版, 2018
The study of atomic structures in dense plasmas has a very important reference value for plasma diagnosis and astronomical observation. The MCDF method combined with ion sphere model are used in this work to investigate the influence of dense plasmas on ...
LI Xiang-Fu, JIANG Gang
doaj