Supporting information: step-engineered MOCVD growth of WSe2 on sapphire (Nature Nanotechnology)
Non-primary PDF
Supporting Information PDF for Zhu et al., Nature Nanotechnology on step-engineered MOCVD growth of WSe\(_2\) on miscut c-plane sapphire (2DCC / Penn State network). The article narrative, abstract, and main-text figures are curated under [[2023zhu-nat-step-engineering]] (DOI 10.1038/s41565-023-01456-6). This slug exists to register SI bytes and hashes for provenance.
Summary¶
The SI package complements the parent Nature Nanotechnology paper with extended sample metadata, crystallographic orientation relations between WSe\(_2\) and α-Al\(_2\)O\(_3\), multi-step MOCVD recipes, temperature and orientation studies, kink-flow growth imaging, passivation strategies, and appendices for Raman, photoluminescence, field-effect transistors, second-harmonic generation, and transmission electron microscopy. DFT supplementary results and movies referenced from the main text typically appear here. Qualitative scientific conclusions and experimental interpretation belong to the VOR article, not to this SI file alone.
Readers should treat this PDF as a procedural and data appendix: it exists so that growth recipes, extended micrographs, diffraction or orientation analyses, and supplementary device or spectroscopy plots can be inspected without cluttering the main article. For MAS retrieval, the stable scientific claims about step-engineered sapphire, WSe\(_2\) domain structure, and collaboration with theory (van Duin, Crespi, Alem) remain anchored on [[2023zhu-nat-step-engineering]]; this page records hashes, file role, and cross-links only.
Methods¶
Role (SI / supplemental ingest)¶
Extra experimental + characterization detail for [[2023zhu-nat-step-engineering]] (MOCVD WSe\(_2\) on sapphire).
Protocol recovery¶
Follow Methods/captions on the parent wiki page, then SI for precursor flows, P–T tables, hold times, miscut, TEM/Raman/FET parameters.
Theory settings in SI¶
DFT supercells, k-mesh, functional—match these for any downstream ReaxFF/continuum comparisons.
N/A (owned LAMMPS/ReaxFF protocol on this SI-only page). The SI is appendix material for [[2023zhu-nat-step-engineering]]; N/A here for a full MOCVD+theory Methods narrative or a standalone RMD recipe—use the VOR article + SI for precursor flows, T/P tables, and any DFT settings the group published. N/A for E-field or metadynamics as new content in this SI-ingest wiki (the parent owns simulation when present).
Findings¶
The SI provides tables, extended figures, and procedural detail backing the parent paper’s claims about nucleation, domain orientation, and epitaxial relationships on step-engineered substrates. It does not replace the main text for citing scientific conclusions in external publications.
In corpus terms, the finding of this ingest is documentary: the SI substantiates that the experimental group archived sufficient metadata and extended characterization to support peer review of a complex MOCVD + microscopy study. Operators should not treat isolated SI figures as standalone publications; instead, cite the journal article for interpretive statements and use the SI for reproducing growth conditions and auditing extended data panels.
Limitations¶
SI-only ingest: always pair with [[2023zhu-nat-step-engineering]]. extraction_quality: partial reflects corpus profiling state for the SI PDF; operators may deepen section-level notes after full SI read-through.
Relevance to group¶
2DCC / Redwing experimental materials with Penn State theory collaboration (van Duin, Crespi, Alem).
Citations and evidence anchors¶
- Parent article:
[[2023zhu-nat-step-engineering]]— DOI 10.1038/s41565-023-01456-6. SI pairing. Cross-reference section numbers and extended figures with[[2023zhu-nat-step-engineering]](DOI 10.1038/s41565-023-01456-6); the SI does not stand alone for scholarly citation.
Reproducibility and corpus locators¶
This note documents where to find primary evidence in-repo; it does not add new scientific claims beyond the cited publication.
Normalized layer. When present, normalized/papers/{slug}.json mirrors manifest hashes, bibliography fields, and extraction pointers; if pdf_path or PDF bytes change, follow AGENTS.md and docs/PHASE3_RUNBOOK.md to re-profile rather than editing PDFs in place.
Authority chain. For numerical settings (cutoffs, timesteps, ensembles, kinetics), use the peer-reviewed PDF (and publisher Supporting Information) as the authoritative source; this wiki summarizes for navigation and retrieval.