A5089356345- Diamond and Carbon-based Materials Research
- Gas Sensing Nanomaterials and Sensors
- Transition Metal Oxide Nanomaterials
- Advanced Memory and Neural Computing
- Surface and Thin Film Phenomena
- Force Microscopy Techniques and Applications
- Ferroelectric and Negative Capacitance Devices
- Ion-surface interactions and analysis
- Carbon Nanotubes in Composites
- Physics of Superconductivity and Magnetism
- Ga2O3 and related materials
- Analytical Chemistry and Sensors
- ZnO doping and properties
- Laser-induced spectroscopy and plasma
- Advanced Fiber Laser Technologies
- Machine Learning and ELM
- MXene and MAX Phase Materials
- TiO2 Photocatalysis and Solar Cells
- Advanced Neural Network Applications
- Computer Graphics and Visualization Techniques
- Analytical chemistry methods development
- Nanowire Synthesis and Applications
- Pharmacological Effects and Assays
- Advanced Chemical Sensor Technologies
- Laser-Ablation Synthesis of Nanoparticles
Institute of Physics, Academia Sinica
2024
National Chung Hsing University
1992-2021
Argonne National Laboratory
2011
National Dong Hwa University
2005-2009
The complete nucleotide sequence of the RNA genome papaya ringspot virus (PRSV) was determined from four overlapping cDNA clones and by direct sequencing viral RNA. genomic is 10326 nucleotides in length, excluding poly(A) tract, contains one large open reading frame that starts at positions 86 to 88 ends 10118 10120, encoding a polyprotein 3344 amino acids. highly conserved AAAUAAAANANCUCAACACAACAUA 5' end PRSV those other five reported potyviruses shows 80% similarity, suggesting this...
This letter presents direct observation of growth hormone receptor in one single cancer cell using nanodiamond-growth complex as a specific probe. The interaction surface A549 human lung epithelial cells with was observed nanodiamond’s unique spectroscopic signal via confocal Raman mapping. molecules were covalent conjugated to 100nm diameter carboxylated nanodiamonds, which can be recognized specifically by the receptors cell. diamond provides and vitro physiology condition level.
In this work, the spectroscopic properties of surface functionalized nanodiamond particles are investigated via Fourier transform infrared spectroscopy. The functionalization was achieved chemically using strong acid treatment method. size dependent CO stretching frequency (between 1680 and 1820cm−1) studied for particle diameter sizes from 5to500nm range. frequencies at ∼1820cm−1, large (500nm), down shifted to 1725cm−1 (5nm) with decreasing sizes. We attributed shift as a result hydrogen...
A spectroscopic imaging-scanning tunneling microscope (SI-STM) allows for the atomic scale visualization of surface electronic and magnetic structure novel quantum materials with a high energy resolution. To achieve optimal performance, low vibration facility is required. Here, we describe design performance an ultrahigh vacuum STM system supported by hybrid isolation that consists pneumatic passive piezoelectric active stage. We present detailed vibrational noise analysis system, which...
This paper concerns a comparative study on the improved alcohol sensing performance of ZnO nanotubes (NTs) based devices via two means: 1) by widely explored catalytic noble metal (Pd) surface modification (Type 1 device) and 2) relatively less technique decoration reduced graphene oxide (rGO) 2 device). Three types alcohols viz., methanol, ethanol, 2-propanol, in concentration range 1-800 ppm were considered as test species for above-mentioned sensor results compared with those pristine NTs...
One of the promising nonvolatile memories next generation is resistive random-access memory (ReRAM). It has vast benefits in comparison to other emerging memories. Among different materials, dielectric films have been extensively studied by scientific research community as a switching material over several decades and reported many advantages downsides. However, less attention given low-dimensional materials for compared films. Particularly, β-Ga2O3 one high-power electronics exhibits...
This research analyzed a visible-light-responsive carbon-containing titania photocatalysts prepared by sol-gel method using confocal Raman spectral mapping, transmission electron microscopy, and UV/visible spectroscopy. The incorporation of carbons in the initial powder anatase amorphous phases was found to facilitate formation rutile or brookite from phase 150–250°C temperature range, resulting nanostructured mixed which create interface states effectively shift band gap ∼2.7eV. further...
In this paper, ppb level methanol sensing by a hybrid gas sensor device based on reduced graphene oxide (rGO) and TiO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> nanotubes is reported. Tuning of carbon to oxygen ratio, in rGO layers, was found be very effective modulating the response. The C:O ratio tuned varying voltage (11-31V) during electro-deposition (on top nanotube matrix) confirmed Raman spectroscopy X-ray photoelectron...
In this paper, synthesis, characterizations and highly selective methanol sensing performance of pristine electrodeposited MoS <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> thin film is reported correlated with the corresponding density functional theory (DFT) based computations. Pristine was electrochemically deposited on conducting Indium doped Tin Oxide (ITO) glass substrate, annealed at three different temperatures viz. 350 °C, 450...
Surface-enhanced Raman scattering was applied to study the nanodiamond with particles’ sizes 100 and 5 nm, positioned on silver (Ag) substrate using high focused laser beam acceleration method. The particles suspended in distilled water were accelerated by a near infrared attached an Ag foil serving as target. This allows be ordered, positioned, penetrate deep into Ag. nanodiamond–Ag surface structure after nanoparticles∕laser treatment analyzed micro-Raman spectroscopy scanning electron...
In this work, we have inspected the theoretical resistive switching properties of two ReRAM models based on heterojunction structures Cu/SiO x nanoparticles (NPs)/Si and Si/SiO NPs/Si, in which dielectric layers silica present dislocations at bicrystal interfaces. To validate model, a charge storage device with structure /Si was fabricated its were studied. Our examinations electrical, thermal structural aspects uncovered behavior relies upon material electrical characteristics layers, as...
In this paper, the self-assembled hierarchical nanostructure of MnO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> , consisting 3-D nanoflowers and 1-D nanorods, was synthesized by employing a hydrothermal technique. The gas sensing property same investigated apparent anomaly concerning n-type material characteristics p-type behavior explained using underlying mechanistic framework. morphological (field emission scanning electron...
Resistive Random Access Memories (ReRAMs) are promising future candidates for nonvolatile memory. The underlying mechanism involves resistive switching in high-k dielectric layers, and changes resistance due to different mechanisms caused by the evolution of defective structures triggered electrical thermal effects. For memory purpose ReRAM, field can be used adjust material storage information. In this study, nonequilibrium molecular dynamics simulations with charge equilibration method...