Results 151 to 160 of about 240,921 (262)

Electronic Structure Effects During Cooperative Phase Transitions in Organic Semiconductor Single Crystals

open access: yesAdvanced Electronic Materials, EarlyView.
A cooperative phase transition in the organic semiconductor ditBu‐BTBT crystal around 70°C reorganizes molecular structure and dynamics, altering its electronic properties. Soft x‐ray reflectivity and optical spectroscopy reveal shifts in electronic resonances and a widening of the optical bandgap. The transition reduces intermolecular interactions and
Giulia Giovanelli   +10 more
wiley   +1 more source

Advancing Energy Materials by In Situ Atomic Scale Methods

open access: yesAdvanced Energy Materials, Volume 15, Issue 11, March 18, 2025.
Progress in in situ atomic scale methods leads to an improved understanding of new and advanced energy materials, where a local understanding of complex, inhomogeneous systems or interfaces down to the atomic scale and quantum level is required. Topics from photovoltaics, dissipation losses, phase transitions, and chemical energy conversion are ...
Christian Jooss   +21 more
wiley   +1 more source

Upscaling Sodium‐Ion Battery Cells: From Aqueous Processing to Performance Assessment of Hard Carbon|Prussian White Pouch Cells

open access: yesAdvanced Energy Materials, EarlyView.
This study investigates the feasibility of scaling up Prussian White (PW)‐based cathode manufacturing at a pilot scale. Through careful PW dehydration combined with optimized aqueous processing, we report the stepwise development of industrially relevant 1 Ah pouch cells and evaluate their performance under various conditions.
Faduma M. Maddar   +7 more
wiley   +1 more source

Engineering Na‐Rich P2‐Type Layered Oxides Through Li/Ti Dual Doping for Oxygen Redox Activation and Superior Structural Stability

open access: yesAdvanced Energy Materials, EarlyView.
P2‐type sodium layered oxides have potential for high‐voltage operation but suffer from structural instability and capacity fading. This work demonstrates that synergistic Li and Ti co‐doping enhances sodium inventory, suppresses detrimental phase transitions, and activates reversible lattice oxygen redox.
Rishika Jakhar   +16 more
wiley   +1 more source

Health transformation toward universal healthcare coverage amidst conflict: examining the impact of international cooperation in Niger. [PDF]

open access: yesFront Public Health
Doutchi M   +19 more
europepmc   +1 more source

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