Results 131 to 140 of about 297,861 (287)

Elucidating the Role of Surface Ligands on the Oxidative Etching of Au Bipyramids During Photothermia Using Liquid Cell Transmission Electron Microscopy

Advanced Functional Materials, EarlyView.
Gold bipyramids can act as efficient plasmonic nanoheaters, but they often reshape during laser heating. This study shows that oxygen nanobubbles drive oxidative etching and that surface ligands control stability. CTAB‐ and citrate‐coated particles blunt and lose optical performance, whereas polystyrene sulfonate preserves shape and heating by ...
Irene López‐Sicilia, Valentina Girelli Consolaro, Sophie Marbach, Nancy Rahbany, Grégoire Petit, Ovidiu Ersen, Juan J. Giner‐Casares, Ali Abou‐Hassan   +7 more
wiley   +1 more source

Investigation of Halogen Substitution Effects in π‐Conjugated Organic Ligands of Chiral Hybrid Perovskites on Their Chiroptical Activity

Advanced Functional Materials, EarlyView.
The role of novel thiophene‐based ligands with halogen substitutions in enhancing the chiroptical and optoelectronic properties of 2D chiral HOIPs has been investigated. By tailoring ligand design, enhanced CD and CPL properties are achieved, with improved CPL discrimination in photodetectors.
Boesung Kwon, Doyeong Yeo, In‐Chul Hwang, In Hwan Jung, Joon Hak Oh   +4 more
wiley   +1 more source

Symmetries and covering maps for the minimal tension string on AdS 3 × S 3 × T 4

Journal of High Energy Physics
This paper considers a recently-proposed string theory on AdS 3 × S 3 × T 4 with one unit of NS-NS flux (k = 1). We discuss interpretations of the target space, including connections to twistor geometry and a more conventional spacetime interpretation ...
N. M. McStay, R. A. Reid-Edwards
doaj   +1 more source

Atomic Layer Deposition in Transistors and Monolithic 3D Integration

Advanced Functional Materials, EarlyView.
Transistors are fundamental building blocks of modern electronics. This review summarizes recent progress in atomic layer deposition (ALD) for the synthesis of two‐dimensional (2D) metal oxides and transition‐metal dichalcogenides (TMDCs), with particular emphasis on their enabling role in monolithic three‐dimensional (M3D) integration for next ...
Yue Liu, Taoyu Zou, Cheng‐Yan Xu, Liang Zhen, Yang Li, Yong‐Young Noh   +5 more
wiley   +1 more source

Weighted eigenvalue problems for the p-Laplacian with weights in weak Lebesgue spaces

Electronic Journal of Differential Equations, 2011
We consider the nonlinear eigenvalue problem $$ -Delta_p u= lambda g |u|^{p-2}u,quad uin mathcal{D}^{1,p}_0(Omega) $$ where $Delta_p$ is the p-Laplacian operator, $Omega$ is a connected domain in $mathbb{R}^N$ with $N>p$ and the weight function $g$
T. V. Anoop
doaj  

Liouville theorems for $p$-Laplace equations with critical Hardy–Hénon exponents

Comptes Rendus. Mathématique
This paper is concerned with possibly sign-changing solutions to the critical $p$-Laplace equation $-\Delta _p u = \vert {x}\vert ^\alpha \vert {u}\vert ^{p^*_\alpha -2}u$ in $\Omega $, $u=0$ on $\partial \Omega $, where $1-p$, $p^*_\alpha =\frac{(N ...
Le, Diem Hang T., Le, Phuong
doaj   +1 more source

Radial Symmetry of Positive Solutions of Nonlinear Elliptic Equations

Journal of Differential Equations, 1999
Three results concerning the radial symmetry and asymptotic behaviour at \(x=\infty\) of positive solutions of \[ \Delta u = \varphi(\mid x\mid)u^{\lambda}, \quad x\in \mathbb{R}^n \] and \(|x|\) large are presented. Here \(\lambda>1\) and \(\varphi(r)\) is positive and continuous for \(r\) large. There are three cases which are separately analysed: (I)
openaire   +1 more source

Magnetothermal‐Triggered Response and Self‐Healing of Recyclable and Reprocessable Nanocomposites for Actuation Systems

Advanced Functional Materials, EarlyView.
Developing recyclable materials for magnetic robotics that combine rapid response and self‐healing properties is challenging. Hence, this study focuses on the integration of magnetothermal nanoparticles into a dynamic sorbitol‐based vitrimer, a recyclable composite capable of remote actuation and self‐healing by magnetic heating.
Maria Weißpflog, Gloria Signorato, Birgit Hankiewicz, Volker Abetz   +3 more
wiley   +1 more source

Phyllotactic Structures in Radially Growing Spatial Symmetry Breaking Systems

Physical Review Letters
Phyllotactic patterns, i.e. regular arrangements of leaves or seeds around a plant stem, are fascinating examples of complex structures encountered in Nature. In botany, their symmetries develop when a new primordium periodically grows in the largest gap left between the previous primordium and the apex.
G. Facchini, M. A. Budroni, G. Schuszter, Fabian Brau, A. De Wit   +4 more
openaire   +2 more sources

Curvature‐Tuned Friction at Electrified Ionic Liquid Interfaces

Advanced Functional Materials, EarlyView.
Graphene curvature plays a key role in friction electrotunability at single‐asperity contacts lubricated by ionic liquids. A 9 nm radius yields stronger tunability than larger radii, with distinct friction coefficients at low and high loads indicating a shift in the slippage plane.
Wei Song, Md Ashiqur Rahman, Qianlu Zheng, Nathaniel Hawthorne, James D. Batteas, Rui Qiao, Rosa M. Espinosa‐Marzal   +6 more
wiley   +1 more source