Gallium
Doublet Separations
- Ga 2p: 27 eV
- Ga 3d: 0.45 eV
- Ga 3p: 3.4 eV
The Energies Listed are Binding Energies!
- Ga 2p: 1120 eV
- Ga 3s: 158.5 eV
- Ga 3p: 103 eV
- Ga 3d: 18 eV
The Energies Listed are Binding Energies!
Ga 2p
- Ag MNN (Al source) (1138 eV)
- La 3p (1124 eV)
- Eu 3d (1131 eV)
- Ba 3p (1137 eV)
- Xe 3s (1145 eV)
Energies listed are Kinetic Energies!
Sb MNN: ~ 450 eV
The Energies Listed are Binding Energies!
| Species | Binding energy / eV | Charge Ref | Ref |
| Sb(0) | 528.1 | Au 4f (83.99 eV) | 1 |
Gallium XPS analysis may be obtained via either the 2p or 3d regions, primarily. The 3d region may possibly provide an additional insight into the chemical speciation involved, while the 2p region is more intense.
Ga 3d, and Ga 2p have markedly different kinetic energies, and hence may be used to extract spatial information from a non-homogeneous sample.
The Ga 3d region may overlap with O 2s, In 4d, S 3s, P 3s, Ba 5p, K 3p and La 5p. The Ga 2p region may overlap with the N KLL auger and while the La 3p3/2 peak may intersect the Ga 2p3/2 and 2p1/2, the energy differences and large doublet separation of Ga 2p (26.9 eV) result in a relatively trivial deconvolution.
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- Bourque, J. L., et al. (2016). “Chemical state determination of molecular gallium compounds using XPS.” Dalton Transactions 45(18): 7678-7696. Read it online here.
