Results 151 to 160 of about 732,426 (310)

Polymorphic Superparaelectric Engineering Boosting Energy Storage Capacity in BaTiO3‐Based Ceramics

open access: yesAdvanced Science, EarlyView.
Herein, Ca2+ incorporation promotes the coexistence of CaTiO3‐/BaTiO3‐derived paraferroelectric states, stabilizing cubic‐orthorhombic‐tetragonal polymorphic superparaelectric phases. This minimizes polarization energy barriers, facilitating full polarization saturation without compromising efficiency.
Pan Liu   +9 more
wiley   +1 more source

In‐Operando 4D‐STEM and STEM‐EBIC Imaging of Electric Fields and Charge Carrier Behavior in Biased Silicon p–n Junctions

open access: yesAdvanced Electronic Materials, EarlyView.
This work presents a study of how 4D‐STEM centre of mass measurements and STEM‐EBIC can be used to map the positions, directions, and strengths of electric fields in semiconductor devices. The contrast mechanisms of both techniques are tested and compared with simulations to build a robust analysis of an in situ device in the electron microscope ...
Eoin Moynihan   +5 more
wiley   +1 more source

Multicenter study of colon capsule endoscopy in post-polypectomy surveillance. [PDF]

open access: yesEndosc Int Open
Turvill J   +9 more
europepmc   +1 more source

Revealing Ambipolar Charge Transport in BTBT‐Based D–A–D Molecules via Photo‐MIS‐CELIV Measurements

open access: yesAdvanced Electronic Materials, EarlyView.
We report a new family of D–A–D molecules based on BTBT and BTBTOx4 as central π‐conjugated cores. Using photo‐MIS‐CELIV, we measured hole and electron mobilities and investigated the role of molecular structure. BTBTOx4 derivatives show ambipolar behavior and intrinsic p‐doping, while BTBT analogues are unipolar with higher mobility.
Salvatore Gambino   +10 more
wiley   +1 more source

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