Abstract
Al0.26Ga0.74N/AlN/GaN heterostructures with a 1-nm-thick AlN interfacial layer were grown on 100-mm-diameter epitaxial AIN/sapphire templates by metalorganic vapor phase epitaxy. They exhibited very high Hall mobilities of approximately 2100 cm2/Vs at room temperature and approximately 25000 cm2/Vs at 15 K with a sheet carrier density of approximately 1 × 1013/cm2. High-electron- mobility transistors were successfully fabricated on the epitaxial wafers. The device exhibited a high drain current density of 832 mA/mm and high extrinsic transconductance of 189 mS/mm.
Original language | English |
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Pages (from-to) | 1031-1034 |
Number of pages | 4 |
Journal | Technical Digest - International Electron Devices Meeting, IEDM |
Publication status | Published - 2004 Dec 1 |
Externally published | Yes |
Event | IEEE International Electron Devices Meeting, 2004 IEDM - San Francisco, CA, United States Duration: 2004 Dec 13 → 2004 Dec 15 |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Electrical and Electronic Engineering
- Materials Chemistry