Publications by authors named "F-T Hao"
Higher alcohol synthesis through the Fischer-Tropsch (F-T) process was considered a promising route for the efficient utilization of fossil resources could be achieved. The CuCo catalysts were proven to be efficient candidates and attracted much interest. Great efforts have been made to investigate the active sites and mechanisms of CuCo catalysts.
View Article and Find Full Text PDFImproved DC and RF Characteristics of GaN-Based Double-Channel HEMTs by Ultra-Thin AlN Back Barrier Layer.
Micromachines (Basel)
September 2024
In order to improve the off-state and breakdown characteristics of double-channel GaN HEMTs, an ultra-thin barrier layer was chosen as the second barrier layer. The strongly polarized and ultra-thin AlN sub-barrier and the InAlN sub-barrier are great candidates. In this article, the two epitaxial structures, AlGaN/GaN/AlN/GaN (sub-AlN) HEMTs and AlGaN/GaN/InAlN/GaN (sub-InAlN) HEMTs, were compared to select a more suitable sub-barrier layer.
View Article and Find Full Text PDFArticle Synopsis
- The study focused on fabricating and analyzing AlGaN/GaN high-electron-mobility transistors (HEMTs) with tri-gate (TGN) and dual-gate (DGN) structures.
- The TGN devices exhibited better performance in terms of transconductance and frequency characteristics due to improved gate control from the top gate compared to the DGN devices.
- Reducing the nanochannel width enhanced transconductance and linearity of both structures, indicating a significant impact of sidewall gate capacitance, while the gate capacitance for TGN and DGN structures showed complex differences due to their unique depletion region shapes.