Generating Multistructured Ultrasound via Bioinspired Metaskin Patterning for Low‐Threshold and Contactless Control of Living Organisms (Adv. Funct. Mater. 33/2022)

Abstract

Bioinspired Metaskin Patterning In article number 2203109, Long Meng, Hairong Zheng, Xue‐Feng Zhu, and co‐workers report a reconfigurable acoustic meta‐skin with selective superhydrophobic decoration on a metal surface, which can be utilized for generating different structured ultrasounds and have potential applications in biological low‐intensity ultrasound stimulation of living organisms for the study of behavioral response and contactless control.

A Self‐Powered UV Photodetector With Ultrahigh Responsivity Based on 2D Perovskite Ferroelectric Films With Mixed Spacer Cations

“…[ 5–7 ] Ferroelectrics also possess pyroelectric and piezoelectric properties. The overall performance of self‐powered PDs can be significantly improved by utilizing the pyro–phototronic effect, a three‐way coupling effect among pyroelectricity, photoexcitation, and semiconductors [ 8–12 ] or piezo–phototronic effect [ 13–15 ] because polarized charges at the interfaces can modulate the photoelectric process. However, traditional inorganic ferroelectrics such as BaTiO 3 show poor photoelectric properties, which are unsuitable for high‐performance PDs.…”

Ligand Design in Atomically Precise Copper Nanoclusters and Their Application in Electrocatalytic Reactions

“…The size of the metal core of the LP‐MNCs is usually less than 3 nm, which falls in between metal nanoparticles (MNPs) and metal single atoms (MSAs). [ 7,9,10 ] This number is close to the value of electron Fermi wavelength and therefore endowing LP‐MNCs with different electronic and geometri properties from those of MNPs and MSAs. [ 5,11 ] In specific, the electronic structure of MSAs is very simple and can be approximated as the corresponding atomic orbital structure.…”

“…The core usually demonstrates polyhedral structures such as tetrahedral, octahedral, decahedral, dodecahedral, and icosahedral. [ 5,7,61–64 ] In the meantime, face‐centered cubic (FCC), body‐centered cubic (BCC), and hexagonal close‐packed (HCP) configurations are frequently found in the metal cores of many different LP‐MNCs ( Figure a). [ 7,65–67 ] Of these different core structures, the tetrahedral, octahedral, and icosahedral core structures mainly dominate these clusters due to their structural stability.…”

“…Generally, ligand‐protected MNCs are defined as one of the typical polynuclear aggregated nanomaterials with a well‐defined arrangement of capping ligands and atomically precise metal core. [ 3–7 ] The metal cores are stacked in a specific pattern, which is different from single‐atom materials and nanoparticles. The ligands are usually organic chemicals with a special coordination ability with the atoms in the metal core.…”

Self‐Powered UV Photodetector Utilizing Plasmonic Hot Carriers in 2D α‐MoO3/Ir/Si Schottky Heterojunction Devices

“…[3a,11] Also, there are many other self-powered PDs such as ZnO, [12] Au nanoparticles@ZnO, [13] and ZnO/CuO p-n junction. [14] However, for the metallic layer in the semiconductor/metal/ semiconductor PD structure, it is quite interesting to incorporate a plasmonic ultrathin film layer. Localized surface plasmon resonance (LSPR) is a phenomenon where metal nanoparticles support an electromagnetic field that enhances the local electric field and optical absorption through the coupling between light and oscillating conduction electrons.…”