Results 251 to 260 of about 2,751,852 (326)

Updating the U.S. Life Cycle GHG Petroleum Baseline to 2014 with Projections to 2040 Using Open-Source Engineering-Based Models.

open access: yesEnvironmental Science and Technology, 2017
G. Cooney   +5 more
semanticscholar   +1 more source

Cellulose‐Nanofiber‐Based Layered Sub‐Terahertz Absorbing Sheets for B5G/6G Applications

open access: yesAdvanced Materials Technologies, EarlyView.
We report a sub‐terahertz absorber made of biodegradable cellulose‐nanofiber (CNF), potentially useful for B5G/6G devices to achieve electromagnetic compatibility in an eco‐friendly way. The absorber is 120 µm thick and consists of two carbon‐nanotube‐dispersed CNF layers and one pure CNF layer.
Kosaku Kato   +11 more
wiley   +1 more source

An Ultrafast Investigation of the Surface and Bulk Passivation Effects of Phenylethylammonium in CH3NH3PbI3 Thin Films

open access: yesAdvanced Optical Materials, EarlyView.
The addition of 2‐phenylethylammonium (PEA) to the surface of metal halide perovskite thin films has previously been shown to result in the formation of Ruddlesden‐Popper perovskite structures, improving the film’s stability. Here, a range of ultrafast spectroscopic techniques are employed to study the charge‐carrier dynamics in such films on ...
Jake D. Hutchinson   +8 more
wiley   +1 more source

Exploring the Impact of the Presence of 9,9′‐Spirobifluorene Moieties on the Performance of Carbonyl‐Based Multiresonant Thermally Activated Delayed Fluorescence Organic Light‐Emitting Diodes

open access: yesAdvanced Optical Materials, EarlyView.
The impact of decorating the multiresonant thermally activated delayed fluorescence (MR‐TADF) emitter DiKTa with 9,9′‐spirobifluorene units is explored with regard to number, position, and incorporation type. Four novel sky‐blue narrowband MR‐TADF emitters are developed, and in the OLED devices, a structure‐property relationship is observed with ...
Janine Haug   +11 more
wiley   +1 more source

Ionic Density‐Controlled Conjugated Polyelectrolytes for Interface Engineering in Inverted Colloidal PbS Quantum‐Dots Infrared Photodetector

open access: yesAdvanced Optical Materials, EarlyView.
This study demonstrates that conjugated polyelectrolytes with tunable ionic density can act as effective interfacial layers in inverted PbS quantum dot photodiodes. By enhancing dipole orientation and defect passivation at the ITO/QD interface, the devices exhibit suppressed dark current, improved photocurrent, and a record near‐infrared detectivity of
Chanwoo Lim   +8 more
wiley   +1 more source

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