Results 211 to 220 of about 19,911 (268)

Unraveling Band‐Tail Effects on Temperature‐Dependent Emission in GaAsBi via Photoluminescence

open access: yesAdvanced Science, Volume 13, Issue 9, 13 February 2026.
An innovative dual‐spectroscopy approach resolves the debate over GaAsBi's emission temperature sensitivity. By combining temperature‐dependent photoluminescence and transmission spectroscopy, the method decouples the contributions of band‐tail states from the intrinsic band‐edge behavior.
Bing Yan   +6 more
wiley   +1 more source

Highly coherent organic lasing based on etch-free metasurface. [PDF]

open access: yesNat Commun
Choi D   +9 more
europepmc   +1 more source

Deuteration Induced Electron‐Phonon Coupling Modulation: Suppressing Energy Dissipation and Enhancing Carrier Separation in Organic Photocatalysis

open access: yesAdvanced Science, Volume 13, Issue 7, 3 February 2026.
During charge transport, photogenerated carriers exchange energy with lattice vibrations, influencing photocatalytic performance. The deuteration strategy enhances exciton dissociation and suppresses non‐radiative energy loss, significantly improving photocatalytic hydrogen evolution.
Hongli Sun   +13 more
wiley   +1 more source

Ultra high-Q tunable microring resonators enabled by slow light. [PDF]

open access: yesNat Commun
Barya P   +4 more
europepmc   +1 more source

Cold‐Sublimating Quasi‐Solid Additive Enables High Efficiency and Long Operational Stability Binary Organic Solar Cells

open access: yesAdvanced Energy Materials, Volume 16, Issue 5, 4 February 2026.
Cold‐sublimating quasi‐solid mDF acts as an in situ‐removable transient structuring agent that broadens solvent‐removal, accelerates intermediate crystallization, and tightens π–π stacking in PM6:L8‐BO OSCs. Offering residue‐free morphology control, mDF‐treated OSCs enable high efficiency and a markedly extended operational lifetime (T80 = 477 h ...
Zesheng Zhang   +14 more
wiley   +1 more source

Screw‐Dislocation‐Engineered Quantum Dot: Geometry‐Tunable Nonlinear Optics, Orbital Qubit Addressability, and Torsion Metrology

open access: yesAnnalen der Physik, Volume 538, Issue 2, February 2026.
A uniform torsion field—representing a controlled density of parallel screw dislocations—confines a single electron into a geometry‐defined quantum dot. In a perpendicular magnetic field, an Aharonov–Bohm flux breaks the m↔−m$m \leftrightarrow -m$ symmetry and yields a flux‐ and torsion‐tunable angular pseudospin (m=±1)$(m = \pm 1)$ with asymmetric ...
Edilberto O. Silva
wiley   +1 more source

Towards fibre-like loss for photonic integration from violet to near-infrared. [PDF]

open access: yesNature
Chen HJ   +14 more
europepmc   +1 more source

Compact Terahertz Dual‐Comb Spectroscopy with All‐Digitally Generated Adaptive Clock

open access: yesAdvanced Physics Research, Volume 5, Issue 2, February 2026.
This work demonstrates a compact terahertz dual‐comb spectrometer using an all‐digital adaptive clock generated on an FPGA. This system achieves high precision across 1.6 THz, resolves over 24 000 comb lines with kHz resolution, and offers enhanced stability and a simplified architecture compared to analog‐based methods.
Min Li   +8 more
wiley   +1 more source

Paramagnetic Agents for SE DNP: Synthesis and ESR Characterization of New Lipophilic Derivatives of Finland Trityl. [PDF]

open access: yesMolecules
Tormyshev VM   +5 more
europepmc   +1 more source

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