Journal
PLOS ONE
Volume 10, Issue 6, Pages -Publisher
PUBLIC LIBRARY SCIENCE
DOI: 10.1371/journal.pone.0128438
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Funding
- National Natural Science Foundation of China (NSFC) [61076102, 61471035]
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Influence of the energy relaxation of the channel electrons on the performance of AlGaN/ GaN high-electron mobility transistors (HEMTs) has been investigated using self-consistent solution to the coupled Schrodinger equation and Poisson equation. The first quantized energy level in the inversion layer rises and the average channel electron density decreases when the channel electric field increases from 20 kV/cm to 120 kV/cm. This research also demonstrates that the energy relaxation of the channel electrons can lead to current collapse and suggests that the energy relaxation should be considered in modeling the performance of AlGaN/GaN HEMTs such as, the gate leakage current, threshold voltage, sourcedrain current, capacitance-voltage curve, etc.
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