Results 111 to 120 of about 5,758 (284)

Titanium Suboxides Responsible for Electronic Anomaly Near Room Temperature in the Ti3C2Tx MXene

Advanced Functional Materials, EarlyView.
Our multi‐technique study reveals that the near‐room‐temperature anomaly in Ti3C2Tx MXene is linked to titanium suboxide nanodomains, including Ti3O5, embedded within the MXene host. Their temperature‐driven transformation provides an alternative explanation to solvent‐ and swelling‐based models and offers new insight into the thermally activated ...
Bence G. Márkus, Bradlee J. McIntosh, Lili Vajtai, Anna Nyáry, Sándor H. Sipos, Nirmal J. Ghimire, Ferenc Simon, László Forró, Dávid Beke   +8 more
wiley   +1 more source

Polarization-Insensitive Lithium Niobate-on-Insulator Interferometer

Micromachines
The key components of a polarization-independent electro-optic (EO) interferometer, including the beam splitter, mode converter, and directional coupler, are designed based on a lithium niobate (LN) platform on an integrated insulator to ensure high ...
Jiali Liao, Linke Liu, Yanling Sun, Zihao Wang, Wei Li, Jinrong Lan, Lin Ma, Zhenzhong Lu   +7 more
doaj   +1 more source

Dual-Band Wide-Angle Reflective Circular Polarization Converter with Orthogonal Polarization Modes. [PDF]

Sensors (Basel), 2022
Zhang B, Zhu C, Zhang R, Yang X, Wang Y, Liu X.   +5 more
europepmc   +1 more source

Electrode and Microstructure Dependence of Oxygen Diffusion in Ferroelectric Hafnium Zirconium Oxide Thin Films

Advanced Functional Materials, EarlyView.
Significant nanoscale oxygen diffusion coefficient variations are measured in ferroelectric hafnium zirconium oxide films with grain boundaries and electrode interfaces exhibiting values 104 times larger than the grain cores. Overall coefficients are 10X larger for films prepared with metal nitride electrodes compared to refractory metals. New insights
Liron Shvilberg, Thomas W. Pfeifer, Chuanzhen Zhou, Yong Kyu Choi, Duk‐Hyun Choe, Patrick E. Hopkins, Jon F. Ihlefeld   +6 more
wiley   +1 more source

Dual-Frequency Linear-to-Circular Polarization Converter for Ka-Band Applications. [PDF]

Sensors (Basel), 2022
Greco F, Arnieri E.
europepmc   +1 more source

High‐Index, Low‐Loss Optical Material Platforms for Ultra‐Broadband Ultraviolet‐to‐Visible Achromatic Metalenses

Advanced Functional Materials, EarlyView.
An integrated material platform combining engineered SiNx thin films and printable ZrO2 nanoparticle‐embedded resin enables broadband achromatic metalenses from the ultraviolet to visible range. The demonstrated meta‐optics achieve near‐diffraction‐limited focusing with minimal chromatic aberration.
Hyunjung Kang, Dongmin Jeon, Eunji Lee, Junsuk Rho   +3 more
wiley   +1 more source

High-Efficiency Dual-Frequency Reflective Linear Polarization Converter Based on Metasurface for Microwave Bands

Applied Sciences, 2019
A dual-broadband and high-efficiency reflective linear polarization converter based on an anisotropic metasurface is presented. The device consists of two symmetrical, double-slotted metallic split-rings and one criss-cross structure, a dielectric layer,
Changfeng Fu, Zhijie Sun, Lianfu Han, Chao Liu, Tao Sun, Paul K. Chu   +5 more
doaj   +1 more source

A single-layer, wideband and angularly stable metasurface based polarization converter for linear-to-linear cross-polarization conversion. [PDF]

PLoS One, 2023
Rashid A, Murtaza M, Zaidi SAA, Zaki H, Tahir FA.   +4 more
europepmc   +1 more source

Dual‐Function Interface Engineering for δ‐Phase‐Free Crystallization Toward Efficient and Stable FAPbI3 Perovskite Solar Cells

Advanced Functional Materials, EarlyView.
This work presents a dual‐function interface engineering strategy using PEACl to suppress the formation of the non‐perovskite δ‐FAPbI3 phase at the critical SnO2 buried interface. This approach enables the direct crystallization of the photoactive α‐phase, yielding highly efficient and stable rigid (25.6%) and flexible perovskite solar cells with ...
Xiao Wu, Shengyuan Wang, Pok Fung Chan, Zhenyi Ni, Hengkai Zhang, Chun‐Jen Su, Junyi Zhu, Xinhui Lu   +7 more
wiley   +1 more source

A Switchable Polarization Converter on an Indium Phosphide Membrane [PDF]

We present a switchable polarization converter on an indium phosphide membrane, using an simple fabrication process. A polarization extinction ratio above 19 dB and insertion loss below 0.5 dB are demonstrated in simulation.
Reniers, Sander; id_orcid, Williams, Kevin, Jiao, Yuqing, van der Tol, Jos   +3 more
core   +2 more sources