A5031411414- Advanced Thermoelectric Materials and Devices
- Chalcogenide Semiconductor Thin Films
- Thermal Expansion and Ionic Conductivity
- Thermal Radiation and Cooling Technologies
- Phase-change materials and chalcogenides
- Magnetic and transport properties of perovskites and related materials
- Gas Sensing Nanomaterials and Sensors
- ZnO doping and properties
- Heusler alloys: electronic and magnetic properties
- Advanced Thermodynamics and Statistical Mechanics
- Transition Metal Oxide Nanomaterials
- Ferroelectric and Piezoelectric Materials
- Thermal properties of materials
- Copper-based nanomaterials and applications
- Advanced Condensed Matter Physics
- Perovskite Materials and Applications
- Microwave Dielectric Ceramics Synthesis
- Conducting polymers and applications
- Engineering and Technology Innovations
- 2D Materials and Applications
- Quantum Dots Synthesis And Properties
- nanoparticles nucleation surface interactions
- Innovative Energy Harvesting Technologies
- Metal and Thin Film Mechanics
- Physics of Superconductivity and Magnetism
Sakon Nakhon Rajabhat University
2015-2024
Thailand Center of Excellence in Physics
2020-2023
Thailand National Metal and Materials Technology Center
2011
King Mongkut's Institute of Technology Ladkrabang
2011
Yahoo (United Kingdom)
2007
Khon Kaen University
2005
We investigated the effect of single and multidopants on thermoelectrical properties host ZnO films. Incorporation dopant Ga in films improved conductivity mobility but lowered Seebeck coefficient. Dual Ga- In-doped thin show slightly decreased electrical The variation thermoelectric is discussed terms film crystallinity, which subject to dopants' radius. Small amounts In dopants with a large radius may introduce localized regions film, affecting properties. Consequently, 1.5 times increase...
The refrigeration system of thermoelectric refrigerator (TER; 25 × 35 cm3) was fabricated by using a cooler (TEC; 4 cm2) and applied electrical power 40 W. TER has not cooling fan for the coldness circulates in refrigerator. temperature measured at ten points to check system. current, differential temperature, time, coefficient performance (COP) were analyzed. TEC cold plate (Tc) decreased from 30 °C -4.2 1 hr continuously decreasing -7.4 24 hrs 50 hot (Th). 20 slowly hrs. maximum COP 3.0...
Low temperature processed carbon-based perovskite solar cells (C-PSCs) have gained great interest because of low cost and ease fabrication. By replacing the Au electrode with carbon, stable suited for mass-production process can be made. However, power conversion efficiencies (PCEs) C–PSCs still lag behind that PSCs contact. Here we explore (≤150 °C) C-PSCs with, where a two-step method is used to prepare mixed-ion lead films, tin oxide (SnO2) electron transport layer,...
We proposed a good calcinations condition of the ZnO disk to control crystallography and nanoparticles in disk. The precursor powder were analyzed by X-ray diffraction (XRD). mean was determinate XRD results observed scanning electron microscope. temperature ranges 400℃ 650℃ air for 30 minutes used These can be controlled single phase, lattice parameters, unit cell volume, crystalline size, d-value, texture coefficient bond lengths Zn–Zn, Zn–O O–O which correspond significantly hexagonal...
In this study, the physical and thermoelectric characteristics of glass-ceramic materials are examined to provide performance 30Li2O: 3MoO3: 40Bi2O3: 20TeO2: 7CuO samples that were synthesized utilizing melt-quenching process. Archimedes' Principle was used determine properties sample, showing a density 4.53 g/cm3. An X-ray diffractometer (XRD) analyze crystal structure revealed Bismuth Oxide phase. The results measuring with LCR Meter for frequency range set from 50 Hz 1 MHz at room...
We present the thermoelectric characteristics of bulk samples n-type Bi2Se3 and p-type Bi0.4Sb1.6Te3 that were produced by vacuum melt technique then hot-pressed at 723 523 K, respectively. The investigated for their crystalline structure, lattice parameter, density, relative properties XRD, density kit, ZEM-3, LFA, In same temperature range 325 to 525 higher than literature data. have maximum zT is 0.84 0.88 329 respectively, are considered high-performance materials use in devices.
A TE module based on low-temperature difference (ΔT) of 12 pairs p-Ca3Co4O9/n-CaMnO3 (p-CCO/n-CMO) legs with novelty dimensions 0.5 × 5 3 mm3 was fabricated using low cost Cu electrodes and ceramic substrates. With a hot-side temperature the at 473 K ΔT 200 in air load resistance 0.1−0.75 kΩ, generated up to an output voltage (Vout) 0.8 V, current (Iout) 2.46 mA, maximum power (Pout) 1.98 mW conversion efficiency (η) 0.15%.
Abstract Thermoelectric performances are usually enhanced by minimizing the thermal conductivity of materials, either introducing superlattice structures or nanostructuring. Here, a new approach to performance enhancement, based on Seebeck coefficient improvement, is presented for Ge 2 Sb Te 5 thin films. The electron temperature was controlled using pulsed direct current (DC) plasma power, and resulting structural disorder cubic crystalline phase coefficients, as supported molecular orbital...
This paper focuses on designing thermoelectric generator (TEG) via numerical method. Thermoelectric module in this study was made from n-type CaMnO3 and p-type Ca3Co4O9. The couple field equations were formulated into a system of algebraic by means finite element method (FEM). simulation procedure verified comparing with experimental results, which showed very good agreement between the two outcomes. parametric design exhibited that output voltages vary linearly height TEG, until reaching...
Abstract The low cost thermoelectric generator (LCTEG) and high performance are investigated. We have investigated a new compound manufactured locally based area to reduce costs of production. power generation composed small n-type (n-CaMnO3) p-type (p-Ca3Co4O9) 31 couples/ in2 the use thin copper plate silver paint as electrodes. It was found that mean voltage is ∼121.7 mV, current ∼0.0121 mA, ∼1.47 μW.