Research Data Leeds Repository

Dataset of Photothermal Reshaping and Cavity Formation in Silica-Coated Gold Nanorods Using Nanosecond Pulsed Lasers

Citation

Albogami, Tahani, Roach, Lucien, Alshehri, Sarah, McLaughlan, James, Aslam, Zabeada, Ong, Zhan, Evans, Stephen D. and Critchley, Kevin (2025) Dataset of Photothermal Reshaping and Cavity Formation in Silica-Coated Gold Nanorods Using Nanosecond Pulsed Lasers. University of Leeds. [Dataset] https://doi.org/10.5518/1787

Dataset description

This dataset supports the article “Photothermal Reshaping and Cavity Formation in Silica-Coated Gold Nanorods Using Nanosecond Pulsed Lasers.” It contains raw and processed data demonstrating fluence-controlled photothermal reshaping of CTAB-stabilized Au nanorods and silica-coated Au nanorods (AuNR@SiO₂) under 7 ns, 850 nm pulsed laser irradiation. Included are: (i) UV–vis–NIR extinction spectra for AuNR@CTAB and AuNR@SiO₂ before irradiation and after defined exposure times and fluences (typically 2–20 mJ cm⁻²; up to 5–10 min), with extracted LSPR/TSPR peak positions and FWHM values; (ii) representative TEM and STEM micrographs of particles pre- and post-irradiation; (iii) morphology measurements from analysis of >100 particles per condition (core length, diameter, aspect ratio, end-cap factor, silica shell thickness) and associated distributions; (iv) outputs from unsupervised clustering of post-irradiation core morphologies; and (v) 4D-STEM diffraction/orientation maps evidencing melt–recrystallization and monocrystalline-to-polycrystalline transitions within the silica shell. Where applicable, associated analysis scripts and simulation input/output files used to generate extinction/thermal models are provided. These data enable reproduction of all figures and quantitative trends in the manuscript and can be reused to benchmark laser-induced reshaping models for plasmonic core–shell nanostructures.

Subjects:

F000 - Physical sciences > F100 - Chemistry
F000 - Physical sciences > F300 - Physics
F000 - Physical sciences > F100 - Chemistry > F170 - Physical chemistry

Divisions:

Faculty of Engineering and Physical Sciences > School of Physics and Astronomy

License:

Creative Commons Attribution 4.0 International (CC BY 4.0)

Date deposited:

06 Mar 2026 17:47

URI:

https://archive.researchdata.leeds.ac.uk/id/eprint/1526