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12 May 01:12

Wafer-scale production of patterned transition metal ditelluride layers for two-dimensional metal–semiconductor contacts at the Schottky–Mott limit

by Seunguk Song

Nature Electronics, Published online: 06 April 2020; doi:10.1038/s41928-020-0396-x

Two-dimensional metallic WTe2 and MoTe2 layers can be combined with a semiconducting MoS2 monolayer to create metal–semiconductor junctions that are free from substantial disorder effects and Fermi-level pinning.
22 Apr 01:46

[ASAP] Modulating the Electronic Structure and In-Plane Activity of Two-Dimensional Transition Metal Dichalcogenide (MoS2, TaS2, NbS2) Monolayers by Interfacial Engineering

by Fuhua Li and Qing Tang*

TOC Graphic

The Journal of Physical Chemistry C
DOI: 10.1021/acs.jpcc.0c01094
22 Apr 01:46

[ASAP] Edge Defects Promoted Oxidation of Monolayer WS2 Synthesized on Epitaxial Graphene

by F Fabbri*†?, F. Dinelli‡, S. Forti§, L. Sementa?, S. Pace§#, G. Piccinini§?, A. Fortunelli?, C. Coletti§#, and P. Pingue?

TOC Graphic

The Journal of Physical Chemistry C
DOI: 10.1021/acs.jpcc.0c00350
22 Apr 01:45

[ASAP] Effect of Surface States and Breakdown of the Schottky–Mott Limit of Graphene/Silicon van der Waals Heterostructure

by Nam Hoang Vu*†‡§, Hieu Van Le†‡, Thang Bach Phan§, Toan The Nguyen?, Nam Thoai‡?, and Thi Minh Cao#

TOC Graphic

The Journal of Physical Chemistry C
DOI: 10.1021/acs.jpcc.0c01257
22 Apr 01:41

Point defect induced intervalley scattering for the enhancement of interlayer electron transport in bilayer MoS2 homojunctions

Nanoscale, 2020, 12,9859-9865
DOI: 10.1039/D0NR01339K, Paper
Yang Ou, Zhuo Kang, Qingliang Liao, Shihan Gao, Zheng Zhang, Yue Zhang
The interlayer transport of MoS2 homojunctions can be enhanced by point defect induced K–Q intervalley scattering.
The content of this RSS Feed (c) The Royal Society of Chemistry
22 Apr 01:39

Enhanced carrier transport by transition metal doping in WS2 field effect transistors

Nanoscale, 2020, 12,17253-17264
DOI: 10.1039/D0NR01573C, Paper
Maomao Liu, Sichen Wei, Simran Shahi, Hemendra Nath Jaiswal, Paolo Paletti, Sara Fathipour, Maja Remškar, Jun Jiao, Wansik Hwang, Fei Yao, Huamin Li
Both generalized atomic doping and localized contact decoration using transition metal, Cu, can significantly improve the contact condition and enhance the carrier transport of two-dimensional semiconductors.
The content of this RSS Feed (c) The Royal Society of Chemistry
22 Apr 01:39

A two-dimensional MXene potentiates a therapeutic microneedle patch for photonic implantable medicine in the second NIR biowindow

Nanoscale, 2020, 12,10265-10276
DOI: 10.1039/D0NR01444C, Paper
Shiyang Lin, Han Lin, Mai Yang, Min Ge, Yu Chen, Yufang Zhu
A soluble microneedle system loaded with two-dimensional MXene has been successfully fabricated, which can achieve in-situ photothermal therapy towards superficial tumor models with minimal invasion and high efficiency of drug delivery.
The content of this RSS Feed (c) The Royal Society of Chemistry
22 Apr 01:39

2D molybdenum disulphide nanosheets incorporated with single heteroatoms for the electrochemical hydrogen evolution reaction

Nanoscale, 2020, 12,10447-10455
DOI: 10.1039/D0NR01295E, Minireview
Thomas H. M. Lau, John S. Foord, S. C. Edman Tsang
2D nanosheets give enhanced surface area to volume ratios in particle morphology and they can also provide defined surface sites to disperse foreign atoms.
The content of this RSS Feed (c) The Royal Society of Chemistry
22 Apr 01:38

Wafer-scale 2D PtTe2 layers for high-efficiency mechanically flexible electro-thermal smart window applications

Nanoscale, 2020, 12,10647-10655
DOI: 10.1039/D0NR01845G, Paper
Emmanuel Okogbue, Tae-Jun Ko, Sang Sub Han, Mashiyat Sumaiya Shawkat, Mengjing Wang, Hee-Suk Chung, Kyu Hwan Oh, Yeonwoong Jung
Wafer-scale 2D PtTe2 layers exhibit superior electro-thermal properties suitable for smart window applications.
The content of this RSS Feed (c) The Royal Society of Chemistry
22 Apr 01:36

Biomolecular sensing by surface-enhanced Raman scattering of monolayer Janus transition metal dichalcogenide

Nanoscale, 2020, 12,10723-10729
DOI: 10.1039/D0NR00300J, Paper
Shuai Jia, Arkamita Bandyopadhyay, Hemant Kumar, Jing Zhang, Weipeng Wang, Tianshu Zhai, Vivek B. Shenoy, Jun Lou
In this work, we demonstrate that monolayer Janus MoSSe is an effective and universal platform for enhancing Raman signal and detecting biomolecules for the first time.
The content of this RSS Feed (c) The Royal Society of Chemistry
22 Apr 01:35

Stabilizing sulfur vacancy defects by performing “click” chemistry of ultrafine palladium to trigger a high-efficiency hydrogen evolution of MoS2

Nanoscale, 2020, 12,9943-9949
DOI: 10.1039/D0NR01693D, Communication
Suli Liu, Liangliang Zhou, Wanjia Zhang, Junyu Jin, Xueqin Mu, Sudi Zhang, Changyun Chen, Shichun Mu
A “click” chemistry strategy is used to construct an all-pH efficient hydrogen evolution reaction (HER) catalyst with engineered unsaturated sulfur edges via a strong coupling effect between ultrafine Pd ensembles and Co-MoS2 nanosheets.
The content of this RSS Feed (c) The Royal Society of Chemistry
22 Apr 01:27

Ferromagnetic Kitaev interaction and the origin of large magnetic anisotropy in α-RuCl3

by Jennifer A. Sears

Nature Physics, Published online: 13 April 2020; doi:10.1038/s41567-020-0874-0

α-RuCl3 is a promising candidate for realizing the Kitaev quantum spin liquid, but the physics governing its magnetic behaviour remain elusive. Resonant elastic X-ray scattering data now set unambiguous constraints on the leading terms in the Hamiltonian.
22 Apr 01:26

Dipolar interactions between localized interlayer excitons in van der Waals heterostructures

by Weijie Li

Nature Materials, Published online: 13 April 2020; doi:10.1038/s41563-020-0661-4

Repulsive dipole–dipole interactions between localized interlayer excitons are shown to modify the optical response of van der Waals heterobilayers, forming the basis to obtain strong optical nonlinearity and excitonic many-body states in two-dimensional materials.
22 Apr 01:25

Broad spectral tuning of ultra-low-loss polaritons in a van der Waals crystal by intercalation

by Javier Taboada-Gutiérrez

Nature Materials, Published online: 13 April 2020; doi:10.1038/s41563-020-0665-0

The spectral range of long-lived and confined phonon polaritons in a polar van der Waals crystal is shown to be tunable by intercalation of Na atoms, expanding their potential for nanophotonic applications in the mid-infrared domain.
22 Apr 01:24

Strongly correlated electrons and hybrid excitons in a moiré heterostructure

by Yuya Shimazaki

Nature, Published online: 13 April 2020; doi:10.1038/s41586-020-2191-2

Optical spectroscopy is used to probe correlated electronic states in a moiré heterostructure, showing many-body effects such as strong layer paramagnetism and an incompressible Mott-like state of electrons.
13 Apr 01:40

[ASAP] A Density Functional Theory Study of the Two-Dimensional Bis(iminothiolato)metal Monolayers as Efficient Electrocatalysts for Oxygen Reduction Reaction

by Guanru Xing†‡, Lin Cheng*†, Kai Li‡, Yan Gao§, Hao Tang*§, Ying Wang‡, and Zhijian Wu*‡

TOC Graphic

The Journal of Physical Chemistry C
DOI: 10.1021/acs.jpcc.9b11890
13 Apr 01:40

[ASAP] Prediction of Novel 2D Intrinsic Ferromagnetic Materials with High Curie Temperature and Large Perpendicular Magnetic Anisotropy

by Ruilin Han*†, Zhou Jiang‡, and Yu Yan§

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The Journal of Physical Chemistry C
DOI: 10.1021/acs.jpcc.0c01307
13 Apr 01:39

[ASAP] Fast Real-Space Imaging of the Exciton Complexes in WSe2 and WS2 Monolayers Using Multiphoton Microscopy

by Kuang-I Lin*†, Shiue-Yuan Shiau‡, Shu-Bai Liu†, Jia-Sian Yan†§, Jia-De Yan†§, Doreen Cheng?, Han-Ching Chang?, Chien-Liang Tu?, Yung-Chen Cheng§, and Chang-Hsiao Chen*?

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The Journal of Physical Chemistry C
DOI: 10.1021/acs.jpcc.9b11848
13 Apr 01:38

[ASAP] Thermal Conductivity of a 2D Covalent Organic Framework and Its Enhancement Using Fullerene 3D Self-Assembly: a Molecular Dynamics Simulation

by Daili Feng*†‡, Yanhui Feng*†‡, Yazhou Liu†, Weishuo Zhang†, Yuying Yan§, and Xinxin Zhang†‡

TOC Graphic

The Journal of Physical Chemistry C
DOI: 10.1021/acs.jpcc.0c00448
13 Apr 01:36

[ASAP] g-C3N4/WTe2 Hybrid Electrocatalyst for Efficient Hydrogen Evolution Reaction

by J. Luis Silva*, Barbara Brena*, and C. Moyses Araujo*

TOC Graphic

The Journal of Physical Chemistry C
DOI: 10.1021/acs.jpcc.9b11982
13 Apr 01:34

Gap state distribution and Fermi level pinning in monolayer to multilayer MoS2 field effect transistors

Nanoscale, 2020, 12,8883-8889
DOI: 10.1039/D0NR01379J, Paper
Ronen Dagan, Yonatan Vaknin, Yossi Rosenwaks
Gap states and Fermi level pinning play an important role in all semiconductor devices, but even more in transition metal dichalcogenide-based devices due to their high surface to volume ratio and the absence of intralayer dangling bonds.
The content of this RSS Feed (c) The Royal Society of Chemistry
13 Apr 01:34

Layered transition metal dichalcogenide/carbon nanocomposites for electrochemical energy storage and conversion applications

Nanoscale, 2020, 12,8608-8625
DOI: 10.1039/D0NR01664K, Minireview
Yena Kim, Teahoon Park, Jongbeom Na, Jin Woo Yi, Jeonghun Kim, Minjun Kim, Yoshio Bando, Yusuke Yamauchi, Jianjian Lin
Recent advances in layered transition metal dichalcogenide/carbon nanocomposites obtained by a rational approach for energy storage and conversion applications
The content of this RSS Feed (c) The Royal Society of Chemistry
13 Apr 01:26

Direct-bandgap emission from hexagonal Ge and SiGe alloys

by Elham M. T. Fadaly

Nature, Published online: 08 April 2020; doi:10.1038/s41586-020-2150-y

A hexagonal (rather than cubic) alloy of silicon and germanium that has a direct (rather than indirect) bandgap emits light efficiently across a range of wavelengths, enabling electronic and optoelectronic functionalities to be combined on a single chip.
06 Apr 07:28

Disentangling oxygen and water vapor effects on optoelectronic properties of monolayer tungsten disulfide

Nanoscale, 2020, 12,8344-8354
DOI: 10.1039/C9NR09326E, Paper
Hanyu Zhang, Jeremy R. Dunklin, Obadiah G. Reid, Seok Joon Yun, Sanjini U. Nanayakkara, Young Hee Lee, Jeffrey L. Blackburn, Elisa M. Miller
We demonstrate that simple photoluminescence (PL) measurements of tungsten disulfide (WS2) monolayers can differentiate relative humidity environments.
The content of this RSS Feed (c) The Royal Society of Chemistry
06 Apr 07:27

Synthesis of air-stable two-dimensional nanoplatelets of Ruddlesden–Popper organic–inorganic hybrid perovskites

Nanoscale, 2020, 12,10072-10081
DOI: 10.1039/C9NR10543C, Paper
Jayesh Cherusseri, Sreekanth J. Varma, Basudev Pradhan, Jinxin Li, Jitesh Kumar, Elizabeth Barrios, Mohammed Zain Amin, Andrew Towers, Andre Gesquiere, Jayan Thomas
A simple and facile method to synthesize nanoplatelets of 2D Ruddlesden–Popper perovskites is presented. The nanoplatelets exhibit excellent emission in the ultraviolet region and the photodetector fabricated using the nanoplatelets shows high photodetectivity.
The content of this RSS Feed (c) The Royal Society of Chemistry
06 Apr 07:26

CVD growth of large-area InS atomic layers and device applications

Nanoscale, 2020, 12,9366-9374
DOI: 10.1039/D0NR01104E, Communication
Chien-Liang Tu, Kuang-I Lin, Jiang Pu, Tsai-Fu Chung, Chien-Nan Hsiao, An-Ci Huang, Jer-Ren Yang, Taishi Takenobu, Chang-Hsiao Chen
Indium sulfide (InS) atomic layers made by chemical vapor deposition (CVD) are synthesized onto a mica substrate, producing a highly crystalline, large-area, and atomically thin-film InS flakes.
The content of this RSS Feed (c) The Royal Society of Chemistry
06 Apr 07:24

[ASAP] Planar Hypercoordinate Motifs in Two-Dimensional Materials

by Yu Wang†, Yafei Li*†, and Zhongfang Chen*‡

TOC Graphic

Accounts of Chemical Research
DOI: 10.1021/acs.accounts.0c00025
06 Apr 07:23

Correlated states in twisted double bilayer graphene

by Cheng Shen

Nature Physics, Published online: 30 March 2020; doi:10.1038/s41567-020-0825-9

Placing two Bernal-stacked graphene bilayers on top of each other with a small twist angle gives correlated states. As the band structure can be tuned by an electric field, this platform is a more varied setting to study correlated electrons.
06 Apr 07:21

Nonlinear Luttinger liquid plasmons in semiconducting single-walled carbon nanotubes

by Sheng Wang

Nature Materials, Published online: 30 March 2020; doi:10.1038/s41563-020-0652-5

Electric-field tunable plasmonic excitations in semiconducting carbon nanotubes are shown to behave consistently with the nonlinear Luttinger liquid theory, providing a platform to study non-conventional one-dimensional electron dynamics and realize integrated nanophotonic devices.
06 Apr 07:21

Flat and safe under the graphene sheet

by Claire Berger

Nature Materials, Published online: 27 March 2020; doi:10.1038/s41563-020-0666-z

Large-scale atomically thin metals can be stabilized through confinement epitaxy at graphene/SiC interface, which exhibit a gradient bonding type and are air stable, providing a compelling platform for quantum and optoelectronic technologies.