Hyperspectral imaging of exciton confinement within a moiré unit cell with a subnanometer electron probe
- 1. Arizona State University
- 2. Lawrence Berkeley National Laboratory
- 3. Purdue University
- 4. National Institute for Materials Science, Japan
- 5. Stanford University
- 6. University of California, Berkeley
Description
Data and processing notebooks for article titled "Hyperspectral imaging of exciton confinement within a moiré unit cell with a subnanometer electron probe" published in Science in Decembner 2022.
The `ADF Image.dm4` is the simultaneously acquired annular dark field (ADF-) scanning transmission electron microscopy (STEM) image. This was used to determine the structural reconstruction of the WSe2 / WS2 heterostructure.
The `EELS Spectrum Image.dm4` is a spectrum image (one spectra per probe position). This was used to determine the extent of the localization of the exciton peak I.
The two `ipynb` jupyter notebooks were used to do the analysis shown in the paper. The output is embedded in the notebooks. Also, each notebook was run and then exported as a static HTML file to retain the code and output together in a generally readable format.
Contact Peter Ercius (percius@lbl.gov) regarding the code or data.
Files
WS2-WSe2_adaptive_ADF_unit_cell_scan6.ipynb
Files
(590.8 MB)
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Additional details
Related works
- Is published in
- Journal article: arXiv:2207.13823v1 (arXiv)