A5011689484- GaN-based semiconductor devices and materials
- High-Temperature Coating Behaviors
- 2D Materials and Applications
- Metal and Thin Film Mechanics
- Ga2O3 and related materials
- High Entropy Alloys Studies
- Gold and Silver Nanoparticles Synthesis and Applications
- Semiconductor materials and devices
- ZnO doping and properties
- Photonic and Optical Devices
- Plasmonic and Surface Plasmon Research
- Graphene research and applications
- Semiconductor Quantum Structures and Devices
- Ferroelectric and Negative Capacitance Devices
- Photonic Crystals and Applications
- Optical Coatings and Gratings
- Magnetic properties of thin films
- Chalcogenide Semiconductor Thin Films
- Metamaterials and Metasurfaces Applications
- Advancements in Battery Materials
- Phase-change materials and chalcogenides
- Advanced materials and composites
- Mechanical and Optical Resonators
- Advanced Battery Materials and Technologies
- Acoustic Wave Resonator Technologies
Agency for Science, Technology and Research
2012-2025
Institute of Materials Research and Engineering
2011-2024
Shenzhen University
2023
Singapore University of Technology and Design
2023
Star Technology and Research (United States)
2018
Singapore Polytechnic
2018
Abstract The propensity of lithium dendrite formation during the charging process metal batteries is linked to inhomogeneity on surface layer. high reactivity and complex structure native layer create “hot spots” for fast dendritic growth. Here, it demonstrated that a fundamental restructuring in form silicide (Li x Si) can effectively eliminate surface. In situ optical microscopic study carried out monitor electrochemical deposition Li Si‐modified electrodes bare electrode. It observed much...
As a promising counterpart of two-dimensional metamaterials, metasurfaces enable to arbitrarily control the wavefront light at subwavelength scale and hold promise for planar holography applicable multiplexing devices. Nevertheless, degrees freedom (DoF) orthogonally multiplex data have been almost exhausted. Compared with state-of-the-art methods that extensively employ orthogonal basis such as wavelength, polarization or orbital angular momentum, we propose an unprecedented method...
Two-dimensional (2D) semiconductors are promising channel materials for continued downscaling of complementary metal-oxide-semiconductor (CMOS) logic circuits. However, their full potential continues to be limited by a lack scalable high-k dielectrics that can achieve atomically smooth interfaces, small equivalent oxide thicknesses (EOTs), excellent gate control, and low leakage currents. Here, large-area liquid-metal-printed ultrathin Ga2O3 2D electronics optoelectronics reported. The...
Abstract Structural colors based on dielectric metasurfaces are attractive because of their potential application in next‐generation color printing. However, the commonly used materials suffer from issues high light absorption (e.g., Si at blue wavelength) and low resistance to corrosion titanium oxide), which greatly limit as structural for information encryption. Here, dielectric‐metasurface‐based constructed nanocrystalline diamond (NCD) film by using bias enhanced nucleation (BEN)...
Views Icon Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Twitter Facebook Reddit LinkedIn Tools Reprints and Permissions Cite Search Site Citation S. Tripathy, Vivian K. X. Lin, B. Dolmanan, Joyce P. Y. Tan, R. Kajen, L. Bera, Teo, M. Krishna Kumar, Arulkumaran, G. I. Ng, Vicknesh, Shane Todd, W. Z. Wang, Q. Lo, H. Li, D. Lee, Han; AlGaN/GaN two-dimensional-electron gas heterostructures on 200 mm diameter Si(111). Appl. Phys. Lett. 20 August 2012; 101...
Photolithography is the technology of choice for mass patterning in semiconductor and data storage industries. Superlenses have demonstrated capability subdiffraction-limit imaging been envisioned as a promising potential nanophotolithography. Unfortunately, patterns generated by current superlenses exhibited poor profile depth far below requirement photolithography. Here, we report an experimental demonstration sub-50 nm resolution nanophotolithography via smooth silver superlens with high...
Herein, we have successfully synthesized binary Ag2Se, composite Ag0:Ag2Se, and ternary Cu+:Ag2Se through an ambient aqueous-solution-based approach in a one-pot reaction at room temperature atmospheric pressure without involving high-temperature heating, multiple-processes treatment, organic solvents/surfactants. Effective controllability over phases compositions/components are demonstrated with feasibility for large-scale production exquisite alteration parameters especially pH enhancing...
In this letter, the ultrafast vibrational dynamics of individual gold nanorings has been investigated by femtosecond transient absorption spectroscopy. Two acoustic vibration modes have detected and identified. The influence mechanical coupling at nanoparticle/substrate interface on vibrations nano-objects is discussed. Moreover, changing environment nanoring, we provide a clear evidence impact surrounding medium damping vibrations. Such results are reported here for first time...
The advent of 2D ferroelectrics, characterized by their spontaneous polarization states in layer-by-layer domains without the limitation a finite size effect, brings enormous promise for applications integrated optoelectronic devices. Comparing with semiconductor/insulator devices, ferroelectric devices show natural advantages such as non-volatility, low energy consumption and high response speed. Several materials have been reported, however, device implementation particularly application...
Lithium niobate (LiNbO3, LN) is an important material which widely applied in fabricating photonic and acoustic devices. However, it difficult to either wet etch or dry LN due the material’s properties. Here, authors report novel pattern fabrication based on using focused ion beam (FIB) milling. When array of small holes etched, a severe tapering problem observed as common, but by replacing nanocylindrical hole with nanoring structure, obtain crystals aspect ratio up 50:1 (2 μm total etching...
This work is devoted to the fundamental understanding of interaction between acoustic vibrations and surface plasmons in metallic nano-objects. The acoustoplasmonic properties coupled spherical gold nanoparticles nanodisk trimers are investigated experimentally by optical transmission measurements resonant Raman scattering experiments. For excitation close resonance with localized trimers, we able detect several intense bands generated nanoparticles. On basis both vibrational dynamics...
Temperature-dependent transport measurements are performed on the same set of chemical vapor deposition (CVD)-grown WS2 single- and bilayer devices before after atomic layer (ALD) HfO2 . This isolates influence low-temperature carrier shows that mobility is not charge impurity limited as commonly thought, but due to another important overlooked factor: interface roughness. finding corroborated by circular dichroic photoluminescence spectroscopy, X-ray photoemission cross-sectional scanning...