What is it about?
TiN/Ga₂O₃ solves two of the biggest bottlenecks in ultra‑wide‑bandgap (UWBG) electronics: making stable, low‑resistance contacts and enabling high‑power, high‑temperature devices that silicon or even GaN/SiC cannot match.
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Why is it important?
The combination of titanium nitride (TiN) and gallium oxide (β‑Ga₂O₃) makes it providing a thermally stable, low‑barrier, CMOS‑compatible contact system for a semiconductor that can theoretically outperform Si, SiC, and GaN in high‑power electronics. Ga₂O₃ has extraordinary material properties, but its biggest weakness is contact engineering. TiN directly addresses that issue.
Perspectives
The perspectives of TiN/Ga₂O₃ are strong because this interface directly addresses Ga₂O₃’s biggest bottleneck—reliable, low‑resistance, thermally stable contacts—unlocking the path toward commercial UWBG power electronics. The future directions cluster around device performance, integration, and scalability.
Dr Geoffrey Tse
Southern University of Science and Technology
Read the Original
This page is a summary of: Interface-Engineered Ultrawide-Bandgap TiN/β-Ga
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Schottky Diodes for Radiation-Hard X-ray Detection and Imaging, ACS Applied Electronic Materials, April 2026, American Chemical Society (ACS),
DOI: 10.1021/acsaelm.6c00262.
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