Peaks

Literature

Binding energy (eV)

Intensity (c/s)

Assymetry

Base

Gaussian

Final state band and Brillouin zone

A

Iijima 1991

285.34

0.42

0.10

0.15

1

p0 near Q

A1

Eba 2009 Yueh 2001

287.34

0.88

0.00

0.00

1.20

Free-electron-like interlayer state + adsorption

p*C=C-OH or

-(C=C-π*C=O)-

A2

This work

288.93

0.9

0.00

0.00

1.72

Free-electron-like interlayer state +

adsorption p*C=C

A3

This work

289.51

0.89

0.00

0.00

0.60

σ* C-O

A4

This work

291.65

2.61

0.00

0.00

0.60

σ* exciton

B

Fayette 1998

292.79

2.63

0.07

0.15

1.25

σ1, σ2: G → Q