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20 Jul 01:43

Synergistic effects of heteroatom-decorated MXene catalysts for CO reduction reactions

Nanoscale, 2020, 12,15880-15887
DOI: 10.1039/D0NR03632C, Paper
Lei Li, Baihai Li, Haoran Guo, Yanle Li, Chenghua Sun, Ziqi Tian, Liang Chen
The as-designed heteroatom catalysts with steric hindrance efficiently improve the activity and selectivity of CO reduction into CH4.
The content of this RSS Feed (c) The Royal Society of Chemistry
20 Jul 01:42

Superior to graphene: super-anticorrosive natural mica nanosheets

Nanoscale, 2020, 12,16253-16261
DOI: 10.1039/D0NR05040G, Paper
Jiheng Ding, Hongran Zhao, Haibin Yu
The synthesis of ultrathin natural mica nanosheets and their application in protecting metal from becoming corroded were shown.
The content of this RSS Feed (c) The Royal Society of Chemistry
20 Jul 01:41

Promising photovoltaic efficiency of a layered silicon oxide crystal Si3O

Nanoscale, 2020, 12,15638-15642
DOI: 10.1039/D0NR03297B, Communication
Sejoong Kim, Kisung Chae, Young-Woo Son
Computational searching and screening of new functional materials exploiting Earth abundant elements can accelerate the development of their energy applications.
The content of this RSS Feed (c) The Royal Society of Chemistry
20 Jul 01:41

FeCl2 monolayer on HOPG: art of growth and momentum filtering effect

Nanoscale, 2020, 12,16041-16045
DOI: 10.1039/D0NR03128C, Communication
Shihao Cai, Fang Yang, Chunlei Gao
We have achieved the growth of the monolayer FeCl2 monolayer on the HOPG substrate by molecular beam epitaxy. The thin film is found to be insulating associated with momentum filtered tunneling effects using scanning tunneling microscope.
The content of this RSS Feed (c) The Royal Society of Chemistry
20 Jul 01:35

Pristine edge structures of T′′-phase transition metal dichalcogenides (ReSe2, ReS2) atomic layers

Nanoscale, 2020, 12,17005-17012
DOI: 10.1039/D0NR03530K, Paper
Xiya Chen, Bao Lei, Yong Zhu, Jiadong Zhou, Zheng Liu, Wei Ji, Wu Zhou
Atomically sharp pristine edges of ReSe2 atomic layers were identified with scanning transmission electron microscopy imaging and density functional theory calculations.
The content of this RSS Feed (c) The Royal Society of Chemistry
20 Jul 01:32

Evidence of higher-order topology in multilayer WTe2 from Josephson coupling through anisotropic hinge states

by Yong-Bin Choi

Nature Materials, Published online: 06 July 2020; doi:10.1038/s41563-020-0721-9

Transport measurements and calculations show that WTe2 may be a higher-order topological insulator with topological hinge states.
20 Jul 01:32

Excitons in strain-induced one-dimensional moiré potentials at transition metal dichalcogenide heterojunctions

by Yusong Bai

Nature Materials, Published online: 13 July 2020; doi:10.1038/s41563-020-0730-8

The combination of piezoresponse force microscopy and optical measurements reveals the influence of strain in the formation of one-dimensional moiré patterns and the resulting behaviour of interlayer excitons in van der Waals heterostructures.
20 Jul 01:31

Configurable phonon polaritons in twisted α-MoO3

by Mingyuan Chen

Nature Materials, Published online: 13 July 2020; doi:10.1038/s41563-020-0732-6

Infrared nanoimaging of phonon polaritons in twisted α-phase molybdenum trioxide bilayers reveals tunable wavefront geometries and topological transitions over a broad range of twist angles, offering a configurable platform for nanophotonic applications.
20 Jul 01:31

Imaging strain-localized excitons in nanoscale bubbles of monolayer WSe2 at room temperature

by Thomas P. Darlington

Nature Nanotechnology, Published online: 13 July 2020; doi:10.1038/s41565-020-0730-5

A combination of room-temperature nano-optical imaging and spectroscopy and atomistic theory reveals highly localized exciton states in nanobubbles of localized strain in monolayer WSe2.
20 Jul 01:31

Broken mirror symmetry in excitonic response of reconstructed domains in twisted MoSe2/MoSe2 bilayers

by Jiho Sung

Nature Nanotechnology, Published online: 13 July 2020; doi:10.1038/s41565-020-0728-z

Domain-resolved spectroscopy reveals the impact of local atomic registry and crystal symmetry on the exciton properties of individual domains in near-0°-twist-angle MoSe2/MoSe2.
20 Jul 01:30

Excitons in a twisted world

by Paulina Plochocka

Nature Nanotechnology, Published online: 13 July 2020; doi:10.1038/s41565-020-0744-z

Breaking the mirror symmetry in twisted bilayer MoSe2 results in large scale exciton dipole oriented domains in a two-dimensional homostructure.
20 Jul 01:30

Configurable phonon polaritons in twisted α-MoO3

by Mingyuan Chen

Nature Materials, Published online: 13 July 2020; doi:10.1038/s41563-020-0732-6

Infrared nanoimaging of phonon polaritons in twisted α-phase molybdenum trioxide bilayers reveals tunable wavefront geometries and topological transitions over a broad range of twist angles, offering a configurable platform for nanophotonic applications.
20 Jul 01:28

Superconductivity in metallic twisted bilayer graphene stabilized by WSe2

by Harpreet Singh Arora

Nature, Published online: 15 July 2020; doi:10.1038/s41586-020-2473-8

Placing a single layer of tungsten diselenide in contact with twisted bilayer graphene enables superconductivity even for non-magic twist angles where insulating behavior is absent.
20 Jul 01:27

Electronics tuned in twisted bilayer graphene

by Ronny Thomale

Nature, Published online: 15 July 2020; doi:10.1038/d41586-020-02008-x

The strength of the interactions between electrons in a structure called twisted bilayer graphene has been tuned by adjusting the immediate environment — a major advance for tunable electronic quantum matter.
20 Jul 01:27

Graphene’s magic angle reveals a new twist

by Shamini Bundell

Nature, Published online: 15 July 2020; doi:10.1038/d41586-020-02125-7

Probing the superconducting properties of graphene and bacteria that can use manganese to grow.
13 Jul 01:56

Ultrathin Bi2O2S nanosheet near-infrared photodetectors

Nanoscale, 2020, 12,16285-16291
DOI: 10.1039/D0NR02991B, Paper
Basant Chitara, Tej B. Limbu, Jason D. Orlando, Yongan Tang, Fei Yan
Solution-processed Bi2O2S nanosheets demonstrate high-efficiency NIR photodetection with a responsivity of 4 A/W, an external quantum efficiency of 630%, and a normalized photocurrent-to-dark-current ratio of 1.3 × 1010 per watt.
The content of this RSS Feed (c) The Royal Society of Chemistry
13 Jul 01:55

Charge transport in MBE-grown 2H-MoTe2 bilayers with enhanced stability provided by an AlOx capping layer

Nanoscale, 2020, 12,16535-16542
DOI: 10.1039/D0NR03148H, Paper
Zuzanna Ogorzałek, Bartłomiej Seredyński, Sławomir Kret, Adam Kwiatkowski, Krzysztof P. Korona, Magdalena Grzeszczyk, Janusz Mierzejewski, Dariusz Wasik, Wojciech Pacuski, Janusz Sadowski, Marta Gryglas-Borysiewicz
The perfect structure of a 2H-MoTe2 bilayer in situ capped with an ultra-thin Al layer providing an excellent AlOx protection cap and long timescale stability when exposed to air and nitrogen atmospheres.
The content of this RSS Feed (c) The Royal Society of Chemistry
13 Jul 01:55

Correction: Interlayer coupling prolonged the photogenerated carrier lifetime of few layered Bi2OS2 semiconductors

Nanoscale, 2020, 12,15495-15495
DOI: 10.1039/D0NR90147D, Correction
Open Access Open Access
Creative Commons Licence&nbsp This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Xianghong Niu, Guangfen Wu, Xiwen Zhang, Jinlan Wang
The content of this RSS Feed (c) The Royal Society of Chemistry
13 Jul 01:53

High tunnelling electroresistance in a ferroelectric van der Waals heterojunction via giant barrier height modulation

by Jiangbin Wu

Nature Electronics, Published online: 06 July 2020; doi:10.1038/s41928-020-0441-9

A ferroelectric tunnel junction that uses copper indium thiophosphate as the ferroelectric barrier, and graphene and chromium as asymmetric contacts, can offer a high resistance ratio between on and off states.
13 Jul 01:50

Tunable strain soliton networks confine electrons in van der Waals materials

by Drew Edelberg

Nature Physics, Published online: 06 July 2020; doi:10.1038/s41567-020-0953-2

By sliding one layer with respect to the other in a van der Waals heterostructure, Edelberg et al. create a honeycomb network of solitons. Vertices of the network trap electrons, allowing strain-tunable control of confined states.
13 Jul 01:49

Flat bands in twisted bilayer transition metal dichalcogenides

by Zhiming Zhang

Nature Physics, Published online: 06 July 2020; doi:10.1038/s41567-020-0958-x

Using scanning tunnelling spectroscopy, the flat bands in twisted bilayer WSe2 are shown near both 0° and 60° twist angles.
13 Jul 01:49

Topological superconductivity in hybrid devices

by S. M. Frolov

Nature Physics, Published online: 07 July 2020; doi:10.1038/s41567-020-0925-6

Hybrid devices of superconductors and semiconductor nanowires may be topological and host majorana. This Perspective summarizes the current situation of the field, and highlights the developments in materials science required to make progress.
13 Jul 01:49

Quantum breakdown of superconductivity in low-dimensional materials

by Benjamin Sacépé

Nature Physics, Published online: 07 July 2020; doi:10.1038/s41567-020-0905-x

The breakdown of superconductivity is described as a reduction in the amplitude of the order parameter or a breakdown in phase coherence of Cooper pairs. This Review Article highlights recent results that show both mechanisms may be at play simultaneously.
13 Jul 01:48

Odd- and even-denominator fractional quantum Hall states in monolayer WSe2

by Qianhui Shi

Nature Nanotechnology, Published online: 06 July 2020; doi:10.1038/s41565-020-0685-6

Compressibility measurements on high-quality monolayer WSe2 samples enable the observation of fractional quantum Hall states in the lowest Landau levels.
13 Jul 01:47

Two-dimensional materials for next-generation computing technologies

by Chunsen Liu

Nature Nanotechnology, Published online: 09 July 2020; doi:10.1038/s41565-020-0724-3

This Review discusses the recent progress and future prospects of two-dimensional materials for next-generation nanoelectronics.
13 Jul 01:45

Ordering with a twist

by Sergei V. Kalinin

Nature Nanotechnology, Published online: 09 July 2020; doi:10.1038/s41565-020-0705-6

Tuning the twist angle in bilayer transitional metal dichalcogenides yields ordered structural phases with mesoscopically modulated electronic properties revealed by the combination of electron and scanning probe microscopies.
13 Jul 01:45

Evidence of higher-order topology in multilayer WTe2 from Josephson coupling through anisotropic hinge states

by Yong-Bin Choi

Nature Materials, Published online: 06 July 2020; doi:10.1038/s41563-020-0721-9

Transport measurements and calculations show that WTe2 may be a higher-order topological insulator with topological hinge states.
13 Jul 01:44

Tunable exciton binding energy in 2D hybrid layered perovskites through donor–acceptor interactions within the organic layer

by James V. Passarelli

Nature Chemistry, Published online: 06 July 2020; doi:10.1038/s41557-020-0488-2

The strength of electrostatic interactions in semiconductors strongly affects their performance in optoelectronic devices. Now, doping two-dimensional naphthalene-based lead halide perovskites with tetrachloro-1,2-benzoquinone has been shown to introduce donor–acceptor interactions within the organic network, without disrupting the inorganic sublattice. This in turn altered the energy of the materials’ electron–hole electrostatic Coulomb interactions.
13 Jul 01:42

Untying the insulating and superconducting orders in magic-angle graphene

by Petr Stepanov

Nature, Published online: 06 July 2020; doi:10.1038/s41586-020-2459-6

Tuning the electronic interactions by changing the dielectric environment of twisted bilayer graphene reveals the disappearance of the insulating states and their replacement by superconducting phases, suggesting a competition between the two phases.
13 Jul 01:41

Tunable spin-polarized correlated states in twisted double bilayer graphene

by Xiaomeng Liu

Nature, Published online: 08 July 2020; doi:10.1038/s41586-020-2458-7

Twisted double bilayer graphene devices show tunable spin-polarized correlated states that are sensitive to electric and magnetic fields, providing further insights into correlated states in two-dimensional moiré materials.