A5048829678- Advanced Thermoelectric Materials and Devices
- Thermal properties of materials
- Thermal Radiation and Cooling Technologies
- Chalcogenide Semiconductor Thin Films
- Perovskite Materials and Applications
- Quantum Dots Synthesis And Properties
- GaN-based semiconductor devices and materials
- Thermal Expansion and Ionic Conductivity
- 2D Materials and Applications
- Semiconductor materials and devices
- Ferroelectric and Piezoelectric Materials
- Phase-change materials and chalcogenides
- Advanced Condensed Matter Physics
- Multiferroics and related materials
- Surfactants and Colloidal Systems
- Nanowire Synthesis and Applications
- Fluid Dynamics and Mixing
- Oil Spill Detection and Mitigation
Institute of Physics, Academia Sinica
2015-2021
National Taiwan University
2012-2015
Academia Sinica
2012-2014
Center for NanoScience
2014
National Central University
2006
City College of New York
1979
Low-cost and large-area electronic applications require the deposition of active materials in simple inexpensive techniques at room temperature; properties usually associated with polymer films. In this study, we demonstrate a simple, low-cost environmentally friendly method for high-yield production two dimensional nanosheets semiconducting transition metal disulfides, integrated route towards solution-processed MoS2 WS2 thin The resulting high purity no contamination or distortion their...
A record high zT of 2.2 at 740 K is reported in Ge0.92Sb0.08Te single crystals, with an optimal hole carrier concentration ≈4 × 1020 cm-3 that simultaneously maximizes the power factor (PF) ≈56 µW cm-1 K-2 and minimizes thermal conductivity ≈1.9 Wm-1 K-1. In addition to presence herringbone domains stacking faults, exhibits significant modification phonon dispersion extra excitation around ≈5-6 meV Γ point Brillouin zone as confirmed through inelastic neutron scattering (INS) measurements....
A one-step process for the preparation of NbSe<sub>2</sub>nanostructures under effects mechanical forces to be used as Pt replacement CEs in DSSCs is reported.
To achieve practical applications of thermoelectric materials in large scale, with high thermal conversion efficiency, low cost, and operating at a proper temperature range are required. Owing to the inversely relationship between electrical conductivity (σ) Seebeck coefficient (S), it is great challenge improve power factor (PF = σS2) material. Here, we show that by adding small amount silicate aerogel existing promising materials, including Bi0.5Sb1.5Te3 (p-type), Cu0.01Bi2Te2.7Se0.3...
We have successfully synthesized three quasi-2D geometrically frustrated magnetic compounds (\alpha-MCr_2O_4, M=Ca, Sr, Ba) using the spark-plasma-sintering technique. All these members of \alpha-MCr_2O_4 family consist stacking planar triangular lattices Cr$^{3+}$ spins (${\rm S}=3/2$), separated by non-magnetic alkaline earth ions. Their corresponding susceptibility, specific heat, dielectric permittivity and ferroelectric polarization are systematically investigated. A long-range ordering...
We report studies on the effect of UV∕ozone cleaning n-type GaN nanowires prior to ohmic contact deposition and annealing temperature total resistance contacted nanowires. The for periods reduced surface carbon oxygen contamination, as determined by Auger electron spectroscopy measurements led a specific resistivity after in range . After subtraction this from nanowires, it was found that ozone treatment apparent These results show importance extracting transport properties
The Influence of Ag 2 Te AddITIon on ThermoelecTrIc ProPerTIes BIsmuTh TellurIdeThe resistivity, Seebeck coefficient and thermal diffusivity were determined for Bi 3 + ag composite mixtures.Subsequent measurements carried out in the temperature range from 20 to 270°C, compositions pure x = 0.65 selected along pseudo-binary section ag-Bi-Te ternary system. it was found that conductivity vs. dependence shows visible jump between 140 150°C samples with highest content, which is due monoclinic...