Results 251 to 260 of about 29,331,473 (379)

Three-dimensional localization of polymer nanoparticles in cells using ToF-SIMS.

open access: yesBiointerphases, 2016
D. Graham   +4 more
semanticscholar   +1 more source

Molecular Engineering for Enhanced Second‐Order Nonlinear Response in Spontaneously‐Oriented Evaporated Organic Films

open access: yesAdvanced Optical Materials, EarlyView.
Intramolecular bridge‐locking frustrates detrimental anti‐parallel packing in evaporated organic films. This design enhances net polar orientation, leading to a twofold off‐resonance increase in the second‐order nonlinear susceptibility (χ(2)) without electric‐field poling.
Pierre‐Luc Thériault   +6 more
wiley   +1 more source

Resolving agrochemical penetration in wheat leaves with secondary ion mass spectrometry imaging and depth profiling. [PDF]

open access: yesAnal Bioanal Chem
Ajith A   +7 more
europepmc   +1 more source

Mitigating Singlet Exciton Back‐Transfer using 2D Spacer Layers for Perovskite‐Sensitised Upconversion

open access: yesAdvanced Optical Materials, EarlyView.
The efficiency of bulk perovskite‐sensitised upconversion is hindered by parasitic singlet back‐transfer. A 2D perovskite spacer layer is introduced to weaken this loss pathway by increasing the separation between the sensitiser and the emitter. The spacer layer enhances the upconversion efficiency at lower excitation powers and improves the stability ...
Nicholas P. Sloane   +10 more
wiley   +1 more source

Electroluminescence and Franz–Keldysh Modulation Observed in Sn/Ge Multi‐Quantum Wells

open access: yesAdvanced Optical Materials, EarlyView.
We investigate the optoelectronic properties of PIN diodes based on ultrathin α‐Sn/Ge multiple quantum film structures, fabricated by molecular beam epitaxy, both experimentally and theoretically. The samples exhibit a light emission spectrum in the short‐wavelength infrared range with two transitions. Furthermore, when operating as a photodetector, we
Michael Oehme   +9 more
wiley   +1 more source

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