Results 141 to 150 of about 8,906 (257)

Bending‐Induced Vibrational Landscape Reorganization Governs Energy Dissipation in Perylene Bisimides

Angewandte Chemie, EarlyView.
Gradually bent perylene bisimides (PBIs) isolate structural distortion as the sole variable and exhibit negligible intersystem crossing, uncovering rapid vibrational dephasing as the dominant driver of internal conversion through excited‐state vibrational landscape reorganization.
Wei Zhang, Di Zhao, Byeongjoo Kang, Hui‐Jun Zhang, Yeonju Park, Young Mee Jung, Woojae Kim, Jianbin Lin, Dongho Kim   +8 more
wiley   +2 more sources

Donor Intra-Center Absorption to Resonant States in Quantum Wells: Analysis of Peak Shapes. [PDF]

Nanomaterials (Basel)
Akimov V, Tulupenko V, Demediuk R, Tiutiunnyk A, Duque CA, Morales AL, Laroze D, Mora-Ramos ME, Fodchuk I, González-Vega T.   +9 more
europepmc   +1 more source

Engineering a Correlated Narrow‐Gap Semiconductor: Effects of Ga Substitution in EuZn2P2

Advanced Electronic Materials, EarlyView.
ABSTRACT The effect of Ga substitution on the electronic, magnetic, and low‐energy responses of the Zintl phase EuZn2P2${\rm EuZn}_2 {\rm P}_2$ is investigated by electrical transport, electron spin resonance (ESR), and terahertz time‐domain spectroscopy (THz‐TDS). Incorporating Ga into EuZn2P2${\rm EuZn}_2 {\rm P}_2$ (EuZn1.8Ga0.2P2${\rm EuZn}_{1.8} {\
Mateus Dutra, Esteban Marulanda, Gustavo G. Vasques, Jaime Ferreira Oliveira, Pedro C. Sabino, Rebeca Brigato Delgado, Leticie Mendonça‐Fereira, Adriano R. V. Benvenho, Elisa Baggio‐Saitovitch, Ricardo K. Machado, Nicolas M. Kawahala, Julian Munevar, Marcos A. Avila, Felix G. G. Hernandez   +13 more
wiley   +1 more source

Velocity gauge for oscillator strength in ΔSCF theory. [PDF]

J Chem Phys
Shen Y, Fan Y, Yang W.
europepmc   +1 more source

Harnessing Phase Dynamics Across Diverse Frequencies with Multifrequency Oscillatory Neural Networks

Advanced Intelligent Discovery, EarlyView.
Oscillatory Neural Networks (ONNs) are an emerging computing paradigm that encodes information in the phases of coupled oscillators. Traditionally, ONNs have been investigated using homogeneous frequency oscillators. However, physical hardware implementations are inherently subject to frequency mismatches, device variability, and nonuniformities.
Nil Dinç, Filip Sabo, Aida Todri‐Sanial   +2 more
wiley   +1 more source

Machine‐Learning‐Guided Discovery of Boron‐Free Narrowband Blue Thermally Activated Delayed Fluorescence Emitters

Angewandte Chemie, EarlyView.
A data‐driven discovery engine—exhaustive enumeration of carbazole‐containing polycyclic aromatic hydrocarbons (Cz‐PAHs) followed by machine learning—identifies boron‐free, narrowband blue thermally activated delayed fluorescence emitters for organic light‐emitting diodes (OLEDs).
Masaya Hagai, Jie Sun, Jun Hyeon Lee, Kazuhiro J. Fujimoto, Shigehiro Yamaguchi, Takuma Yasuda, Takeshi Yanai   +6 more
wiley   +2 more sources

Exploiting Ferroelectric and Spintronic Dynamics for Neural Network Computation

Advanced Intelligent Systems, EarlyView.
Ferroelectric and spintronic devices, relying on the control of polarization and magnetization, offer intrinsically fast, durable, energy‐efficient, and low‐latency building blocks for analog in‐memory computing. The hysteretic dynamics of an order parameter are leveraged to provide nonvolatile, multistate memory and nonlinear switching. Brain‐inspired
Dashiell Harrison, Kevin Nadaud, Josquin Harrison, Guillaume F. Nataf, Laura Bégon‐Lours   +4 more
wiley   +1 more source

Visible‐Light‐Induced Carbon–Hydrogen Phosphonylation of Conjugated Polymers via Electron Donor–Acceptor Complex Activation

Angewandte Chemie, EarlyView.
Electron donor–acceptor (EDA) complex activation enabled the efficient transformation of conjugated polymers. Compared with the small‐molecule model compound, the polymers reacted more efficiently, achieving quantitative conversion of PFO. This result demonstrates a new platform for incorporating conjugated polymers into EDA‐mediated photochemical ...
Tomohiro Tamano, Kohei Taniguchi, Yoichiro Eriguchi, Kosuke Sato, Shinsuke Inagi   +4 more
wiley   +2 more sources

Electric Field Effects on the Optoelectronic Properties of Fluorinated Heptyl-Bicyclohexyl-Biphenyl: A TD-DFT Investigation. [PDF]

ACS Omega
Trabelsi J, Esboui M.
europepmc   +1 more source

The Risk of Cardiovascular Diseases for Shift Workers in the Prospective Heinz Nixdorf Recall Study

American Journal of Industrial Medicine, EarlyView.
ABSTRACT Background Shift work can disrupt circadian rhythms and is postulated to play a role in cardiovascular diseases (CVD). In the German prospective population‐based Heinz Nixdorf Recall Study, we analyzed longitudinal associations between shift work and night‐shift work with CVD.
Katharina Wichert, Sylvia Rabstein, Raimund Erbel, Lewin Eisele, Marina Arendt, Nico Dragano, Karl‐Heinz Jöckel, Thomas Behrens   +7 more
wiley   +1 more source