Results 101 to 110 of about 24,430 (301)

Surface Wrinkling of Plasma‐Exposed PDMS is Caused by Water Vapor Sorption: An Optical Environmental Sensor

open access: yesAdvanced Functional Materials, EarlyView.
Wrinkling of soft materials, such as polydimethylsiloxane (PDMS), underpins a myriad of technologies. Plasma‐oxidation of PDMS induces spontaneous wrinkling, which is canonically attributed to thermal expansion‐contraction of bilayers. Employing experiments and modelling, it is demonstrated that sorption of water vapor is instead responsible for ...
Zain Ahmad   +8 more
wiley   +1 more source

Mimicking Synaptic Plasticity: Optoionic MoS2 Memory Powered by Biopolymer Hydrogels as a Dynamic Cations Reservoir

open access: yesAdvanced Functional Materials, EarlyView.
Janus (MoS2) transistors functionalized with sodium alginate (SA) and poly(vinylidene fluoride‐co‐trifluoroethylene) [P(VDF‐TrFE)] exhibit persistent photo‐induced ionic gating, driven by dynamic cation migration at the hybrid interface. This ionic mechanism enables finely tunable photoconductivity and emulates key synaptic plasticity behaviors ...
Yeonsu Jeong   +5 more
wiley   +1 more source

Towards large-scale programmable silicon photonic chip for signal processing

open access: yesNanophotonics
Optical signal processing has been playing a crucial part as powerful engine for various information systems in the practical applications. In particular, achieving large-scale programmable chips for signal processing are highly desirable for high ...
Xie Yiwei   +9 more
doaj   +1 more source

FTIR and Raman investigation of vertically etched silicon as a 1D photonic crystal [PDF]

open access: green, 2003
V. A. Tolmachev   +5 more
openalex   +1 more source

Strategies for Controlling Emission Anisotropy in Lead Halide Perovskite Emitters for LED Outcoupling Enhancement

open access: yesAdvanced Materials, EarlyView.
The rise of lead halide perovskite semiconductors has enabled high‐performance LEDs with internal quantum efficiencies approaching 100%. In order to further enhance the external quantum efficiencies limited by light outcoupling effects, in this account, the strategies for reducing energy dissipation through the substrate, waveguide, and evanescent ...
Tommaso Marcato   +2 more
wiley   +1 more source

Light‐Emitting Diodes Based on Metal Halide Perovskite and Perovskite Related Nanocrystals

open access: yesAdvanced Materials, EarlyView.
The review covers the past and current developments in light‐emitting diodes (LEDs) exploiting nanocrystals of halide perovskites and perovskite‐related materials. The review examines the aspects of material optimizations, device engineering, and applications.
Ying Liu   +7 more
wiley   +1 more source

Home - About - Disclaimer - Privacy