Publications by authors named "Aijun Hong"
Enhanced Thermoelectric Performance of p-type AgSbTe via Cu Doping.
ACS Appl Mater Interfaces
October 2024
Article Synopsis
- AgSbTe, a p-type semiconductor, shows potential for thermoelectric performance in the 300-700 K range, but its effectiveness is hampered by low carrier concentration and AgTe impurities.
- Researchers synthesized AgSbCuTe with varying levels of Cu doping to analyze its impact on thermoelectric properties.
- Results show that Cu doping enhances the power factor by reducing AgTe impurities, increasing carrier concentration, and lowering thermal conductivity, achieving a peak performance of ~1.45 at 498 K.
Numerous efforts in improving the hydrogen evolution reaction (HER) performance of transition metal dichalcogenides mostly focus on active sites exposing, vacancy engineering, and phase engineering. However, little room is left for improvement in these approaches. It should be noted that efficient electron transfer also plays a crucial role in catalytic activity.
View Article and Find Full Text PDFLaminated bilayer MoS structures are prepared with MoS nanoparticles trapped between two individual MoS layers which can prevent the formation of a true stacking structure held together by van der Waals interaction. The laminated bilayer MoS clearly indicates a weak interlayer coupling with reduced van der Waals interaction between adjacent layers. As the interlayer coupling is insufficient to modify the band structure of MoS, the laminated bilayer MoS can retain the direct bandgap structure of an isolated monolayer.
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