Results 171 to 180 of about 1,738,280 (381)

Harnessing Outer Space for Improved Electrocaloric Cooling

open access: yesAdvanced Functional Materials, EarlyView.
A novel radiative heat sink/source‐integrated electrocaloric (R‐iEC) system combines the electrocaloric (EC) effect with a thermally conductive radiative cooler (TCRC) to address heat dissipation limitations in EC devices. Utilizing outer space as a heat sink, the system achieves up to 240 W m−2 of heat dissipation performance, making it highly ...
Dong Hyun Seo   +8 more
wiley   +1 more source

Off‐Stoichiometry Engineering of the Electrical and Optical Properties of SrNbO3 Using Oxide Molecular Beam Epitaxy

open access: yesAdvanced Functional Materials, EarlyView.
The plasma edge of transparent conducting oxide SrNbO3 shifts from ∼2 eV in the visible range to 1.37 eV in the near‐infrared region by off‐stoichiometry using the vacancy sites as quasi‐substitutional virtual elements. This work advances the stoichiometry engineering of perovskite oxides using oxide molecular beam epitaxy, allowing synthesis beyond ...
Jasnamol Palakkal   +11 more
wiley   +1 more source

Interfacial Contact Engineering Enables Giant‐Performance Semiconductor Nanomembrane Optoelectronic Devices

open access: yesAdvanced Functional Materials, EarlyView.
This work investigates modifying interfacial contacts in realizing giant‐performance semiconductor nanomembrane optoelectronics. Strategies, including surface reaction and buffer layer work‐function modulation, are explored to boost the Schottky barrier. An emerging material of YbOx is utilized for near‐ideal Ohmic contact.
Yibo Zhang   +5 more
wiley   +1 more source

A global social contract to ensure access to essential medicines and health technologies

open access: yesBMJ Global Health, 2022
Anna Wong   +4 more
doaj   +1 more source

Fiscal Transparency and Fiscal Policy Outcomes in OECD Countries. [PDF]

open access: yes
It is widely believed and often argued that fiscal, or budgetary, transparency has large, positive effects on fiscal performance. However, the evidence linking transparency and fiscal policy outcomes is far from compelling.
David Dreyer Lassen, James E. Alt
core  

Advanced Micro‐OLED Integration on Thin and Flexible Polymer Neural Probes for Targeted Optogenetic Stimulation

open access: yesAdvanced Functional Materials, EarlyView.
This paper introduces a flexible neural probe with integrated micro‐OLEDs on a flexible substrate for the first time, featuring 8 micro‐OLEDs and recording electrodes for optogenetics. It uses advanced encapsulation and an IAI anode for durability, emitting 470 nm light for ChR2 activation, enabling high‐resolution, minimally invasive stimulation ...
Somin Lee   +8 more
wiley   +1 more source

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