fig3f - Metadata
| Project ID | eccb7743-4859-46df-b8d5-de83bfa6d494 |
|---|---|
| Dataset ID | 05a0056c-a96c-4859-9da2-15e726a11659 |
XPS of Si/GaN photocathode after 10 hour chronoamperometry (CA) testing.
Surface chemical composition and valence band structure of GaN were obtained by X-ray photoemission spectroscopy (XPS) on a Kratos Axis Ultra DLD system at a takeoff angle of 0° relative to the surface normal. An Al Kα source (hν = 1486.6 eV) was used to excite the core level electrons. Pass energy of 20 eV was used for the narrow scan of core levels and valence band spectra, and step size of 0.05 eV and 0.025 eV, respectively. The Spectral fitting was conducted using CasaXPS analysis software. The binding energy scales of all core levels were corrected to the N 1s of Ga – N bond at 397.8 eV. XPS O1s core level spectra from 10 hours CA tested Si/GaN sample, and deconvolution shows O - Ga bond, O - N - Ga bond and OH - H2O bond.
Dataset Metadata
| Author | Francesca M. Toma |
|---|---|
| Maintainer Email | fmtoma@lbl.gov |
| DOI | 10.17025/1764159 |
| Institution |
Lawrence Berkeley National Laboratory |
| Capability Node |
LBNL PEC Device In-Situ and Operando Testing LBNL PEC In-Situ and Operando Nanoscale Characterization LBNL Probing and Mitigating Corrosion |
| Technology Type |
PEC |
| Data Source Type |
Lab Experimental |
| Sample Barcode | |
| Sample Name | |
| Collection Date | |
| Comments | |
| Measurement Types |
XPS |
| Measurement Type Other | None |
Additional Info
| Author | Francesca M. Toma |
|---|---|
| Updated | February 5, 2021, 19:27 (UTC) |
| Created | February 4, 2021, 01:01 (UTC) |