Results 231 to 240 of about 1,038,620 (334)

Ultrafast Superradiant Scintillation from Isolated Weakly Confined Perovskite Nanocrystals

open access: yesAdvanced Materials, EarlyView.
Efficiency and scintillation velocity are critical for high‐energy and medical physics. These parameters, typically conflicting in conventional scintillators, are simultaneously optimized by exploiting the giant oscillator strength of CsPbBr3 nanocrystals, leading to radiatively accelerated (multi)excitonic emission with unity efficiency without ...
Matteo L. Zaffalon   +9 more
wiley   +1 more source

Revealing Trapped Carrier Dynamics at Buried Interfaces in Perovskite Solar Cells via Infrared‐Modulated Action Spectroscopy with Surface Photovoltage Detection

open access: yesAdvanced Materials, EarlyView.
A new spectroscopy technique (i.e., pump‐push‐surface photovoltage) is introduced that monitors trapped carrier dynamics at the buried interfaces in perovskite solar cells (PeSCs) via combining optical trap activation by infrared light with surface photovoltage detection.
Beier Hu   +13 more
wiley   +1 more source

Geometrical Anatomy for Oxygen Vacancies in Epitaxial Hf0.5Zr0.5O2 Films Grown via Atomic Layer Deposition

open access: yesAdvanced Materials Interfaces, EarlyView.
Selective formation of oxygen vacancies in the (111)‐oriented Hf0.5Zr0.5O2 film suggests that the latent phenomena associated with oxygen vacancies in functional Hf0.5Zr0.5O2 films are partly attributed to the directional strain in the (111) orientation.
Chihwan An   +8 more
wiley   +1 more source

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