Table 1 Comparison of the obtained Δ E c and Φ B values
XPS: conduction band offset | J-E | |||
|---|---|---|---|---|
Y 2 O 3 /GaN | IL/GaN | Y 2 O 3 /IL | Barrier height | |
O2 | 3.00 | 3.77 | 0.77 | 3.72 |
Ar | 1.55 | 1.40 | 0.15 | 1.58 |
FG | 0.99 | 0.68 | 0.31 | 0.92 |
N2 | 0.70 | −2.03 | 2.73 | a |
XPS: conduction band offset | J-E | |||
|---|---|---|---|---|
Y 2 O 3 /GaN | IL/GaN | Y 2 O 3 /IL | Barrier height | |
O2 | 3.00 | 3.77 | 0.77 | 3.72 |
Ar | 1.55 | 1.40 | 0.15 | 1.58 |
FG | 0.99 | 0.68 | 0.31 | 0.92 |
N2 | 0.70 | −2.03 | 2.73 | a |