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Facile and Controllable Synthesis of Large-Area Monolayer WS2 Flakes Based on WO3 Precursor Drop-Casted Substrates by Chemical Vapor Deposition
It is demonstrated that the as-grown monolayer WS2 flakes show distinctly size-dependent fluorescence emission, which is mainly attributed to the heterogeneous release of intrinsic tensile strain after growth.
Precise fabrication of a 5 nm graphene nanopore with a helium ion microscope for biomolecule detection
- Yunsheng Deng, Qimeng Huang, Yue Zhao, Daming Zhou, C. Ying, Deqiang Wang
- Materials ScienceNanotechnology
- 27 January 2017
A scalable method to fabricate high-quality graphene nanopores for biomolecule detection using a helium ion microscope (HIM) and the exposure-time dependence of graphene nanopore formation is investigated: the rate of pore expansion did not follow a simple linear relationship with exposure time, but a fast expansion rate at short exposure time and a slow rate at long exposure time.
MoS2‐Coupled Carbon Nanosheets Encapsulated on Sodium Titanate Nanowires as Super‐Durable Anode Material for Sodium‐Ion Batteries
A heterogeneous architecture composed of MoS2‐coupled carbon nanosheets encapsulated on sodium titanate nanowires is developed and demonstrated as an advanced anode for sodium‐ion batteries (SIBs) and demonstrates excellent high‐rate capacity and super‐durable cyclability.
High-efficiency synthesis of large-area monolayer WS2 crystals on SiO2/Si substrate via NaCl-assisted atmospheric pressure chemical vapor deposition
Assessment of physiological responses and growth phases of different microalgae under environmental changes by Raman spectroscopy with chemometrics.
3D nanopore shape control by current-stimulus dielectric breakdown
We propose a simple and cost-effect method, current-stimulus dielectric breakdown, to manipulate the 3D shapes of the nanochannels in 20-nm-thick SiNx membranes. Besides the precise control of…
Covalent Modification of Silicon Nitride Nanopore by Amphoteric Polylysine for Short DNA Detection
A chemical modification approach, by means of covalent-bonding amphoteric poly-l-lysine (PLL) on the interior nanopore surface, which could intensively protect the pore from etching when exposed in the electrolyte under various pH conditions is demonstrated.
Silver films coated inverted cone-shaped nanopore array anodic aluminum oxide membranes for SERS analysis of trace molecular orientation
Label-free identification of trace microcystin-LR with surface-enhanced Raman scattering spectra.