A5060599462- Metal and Thin Film Mechanics
- Diamond and Carbon-based Materials Research
- Gold and Silver Nanoparticles Synthesis and Applications
- Plasmonic and Surface Plasmon Research
- Nonlinear Optical Materials Studies
- Nanoparticles: synthesis and applications
- TiO2 Photocatalysis and Solar Cells
- Plasma Applications and Diagnostics
- Advanced materials and composites
- Plasma Diagnostics and Applications
- Advanced Photocatalysis Techniques
- Ion-surface interactions and analysis
- ZnO doping and properties
- Conducting polymers and applications
- Copper-based nanomaterials and applications
- Polymer Nanocomposite Synthesis and Irradiation
- Electrospun Nanofibers in Biomedical Applications
- Supercapacitor Materials and Fabrication
- Silk-based biomaterials and applications
- Pigment Synthesis and Properties
- Advanced Sensor and Energy Harvesting Materials
- Gas Sensing Nanomaterials and Sensors
- Electrochemical sensors and biosensors
- Nanotechnology research and applications
- Advanced Cellulose Research Studies
Mahasarakham University
2016-2025
Yala Rajabhat University
2021
Thailand Center of Excellence in Physics
2018-2020
Plasma Technology (United States)
2018
Khon Kaen University
2004-2007
This work presents a novel route for utilizing waste from power plants to create new source (solar cells). Bottom ash (BA) ceramic micro-particles were studied improve an electrocatalytic activity in solar cell applications the first time. In counter electrodes (CE) of dye-sensitized cells (DSSC), bottom was mixed with PEDOT:PSS (PP) and polyvinylpyrrolidone (PVP) (BA/PP/PVP) volume ratios 3:7, 4:6, 5:5, 6:4. We found that has significant impact improving DSSC efficiency these cells....
Abstract In this study, the silicon-based interlayers for hydrogenated amorphous carbon (a-C:H) coating on a chromium-plated substrate are presented. The a-Si, a-Si:N, a-Si:H and a-Si x C y :H with thickness of about 306 nm were deposited by direct current magnetron sputtering technique. a-C:H films 317 was prepared as top layer radio frequency-plasma chemical vapor deposition. characterized x-ray photoelectron spectroscopy, Raman field emission-secondary electron microscopy,...
Spatially resolved optical emission spectroscopy was used to determine the atomic excitation temperature of capacitively coupled radio-frequency (RF) plasma system. Low pressure plasmas methane or propane in hydrogen were excited at 13.56 MHz a parallel plate Ar added as an actinometer. Optical lines 300–850 nm spectral range investigated typical conditions 100 W RF power, ∼30 mTorr pressure, 20 mm electrode spacing and 50 sccm total flow rate. Two-dimensional intensity profiles important...
X-ray photoelectron spectroscopy (XPS) and x-ray absorption (XAS) were employed for the investigations of diamond-like carbon (DLC) films prepared by highpower impulse magnetron sputtering technique (HiPIMS). The measurements done ex-situ, i.e. DLC samples exposed to air during transferring from deposition analysis chambers. It is inevitable that surface was contaminated absorbed molecules. XPS analyses revealed main contaminants are oxygen, which introduce difficulties determination species...
Because of their unique surface plasmon resonance (SPR) absorption in the visible region electromagnetic (EM) wavelength, plasmonic nanoparticles (NPs) such as gold (Au), silver (Ag) and copper (Cu) are utilized to combine with another material devices. In this work, optical property exhibited by core–shell NPs composed Cu cores Ag shells (Cu@Ag) was investigated Discrete Dipole Approximation (DDA) method. theoretical calculation, at first, shell thickness fixed 5 nm core diameters were...
Abstract Electrospun scaffolds derived from poly(ϵ‐caprolactone) (PCL), a well known biodegradable material, have an architecture that is suitable for hosting cells. However, their biomedical applications are restricted because these lack the bioactivity necessary to stimulate cell responses. In this work, repetitive Arg‐Gly‐Asp (rRGD) peptide was produced as cell‐stimulating agent provide PCL scaffold with bioactivity. DNA encoding rRGD amplified by polymerase chain reaction using overlap...
This work aims to develop a multihole atmospheric pressure plasma jet (APPJ) device increase the area and apply it continuous seed treatment system. Broccoli was used study effects of an on germination growth rate. An argon flow rate 4.2 lpm, power 412 W, discharge frequency 76 kHz were for treatment. The contact angle decreased strongly with in time from 20 s 80 s. broccoli seed’s outer surface morphology seemed have been slightly modified smoother by during However, cross-sectional images...
Abstract Deposition of silver nanoparticles (AgNPs) on the surfaces cotton fabric (CF) is an approach for producing antimicrobial textile products. CF-AgNPs composites were fabricated ex situ using a simple hydrothermal synthesis AgNPs, while was surface modified plasma to improve adhesion prior coating. The morphology and chemical composition nanocomposites examined UV–vis spectrophotometry (UV–vis), x-ray diffraction (XRD), transmission electron microscopy (TEM) field emission scanning...
Abstract In this work, Ti-6Al-4V alloy, commonly used as implant material in biomedical applications, was treated by plasma nitriding. The nitriding process carried out using an N 2 -H (1000:500 sccm) at operating pressure of about 866 Pa. current regulation 1.8 A, the negative voltage 480–500 V, and power 840–940 W. temperature maintained 650 ± 5 °C, time 240 min. Bipolar pulse frequencies were varied 25, 50, 100, 150, 200 kHz. Analysis grazing incidence x-ray diffraction spectrometer...
Increasing energy demands and growing environmental concerns regarding the consumption of fossil fuels are important motivations for development clean sustainable sources. A triboelectric nanogenerator (TENG) is a promising technology that harnesses mechanical from ambient environment by converting it into electrical energy. In this work, enhancement conversion performance natural rubber (NR)-based TENG has been proposed using modified activated carbon (AC). The effect surface modification...
Transparent electrodes (TEs) are essential components in many optoelectronic devices. Although indium tin oxide (ITO) has an excellent trade-off between optical transparency and electrical sheet resistance, it still suffers from several drawbacks, including the increasing cost of poor long-term flexibility due to work hardening. This presents development a new class TEs based on ultrathin ZnO/Ag/ZnO samples which Ag films with different film thickness used as metallic interlayer. XRD, XPS...
Objectives: Surface plasmon exhibited in nano-sized particles such as gold, silver, copper has recently attracted a great deal of attention due to the enhancement and tunable optical properties visible near-infrared region electromagnetic spectrum. In this work, dielectric material at noble metal core-shell nanoparticles were investigated. Methods: Mie theory is analytical method used study via parameters extinction, scattering absorption efficiencies. The samples for studying composites...
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