Dataset for "Common source of light emission and nonlocal molecular manipulation on the Si(111)-7x7 surface"

This dataset contains data supporting the results presented in the paper "Common source of light emission and nonlocal molecular manipulation on the Si(111)-7x7 surface". It includes the data used to plot each figure associated with this publication, together with the raw oscilloscope data in .csv format.

The study combines the results of the two near identical experimental techniques - nonlocal atomic manipulation and light emission from a scanning tunnelling microscope - for the system of toluene molecules chemisorbed on the Si(111)-7×7 surface at room temperature. The radial dependence of molecular desorption away from the tip injection site conforms to a two-step ballistic-diffusive transport of the injected hot electrons across the surface, with a threshold bias voltage of +2.0 V. We find the same threshold voltage of +2.0 V for light emission from the bare Si(111)-7×7 surface. Comparing these results with previous published spectra we propose that both the manipulation and the light emission follow the same hot electron dynamics, only differing in the outcome of the final relaxation step which may result in either molecular manipulation, or photon emission.

Keywords:
Nonlocal atomic manipulation, scanning tunnelling luminescence, hot electrons
Subjects:
Atomic and molecular physics
Catalysis and surfaces

Cite this dataset as:
Rusimova, K., Sloan, P., Purkiss, R., Etheridge, H., 2019. Dataset for "Common source of light emission and nonlocal molecular manipulation on the Si(111)-7x7 surface". Bath: University of Bath Research Data Archive. Available from: https://doi.org/10.15125/BATH-00622.

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Data

Figure2.xlsx
application/vnd.openxmlformats-officedocument.spreadsheetml.sheet (11kB)
Creative Commons: Attribution 4.0

Raw camera counts data from the tunnelling junction pixel from Figure 2 in Excel (Office Open XML) spreadsheet format. Each subfigure presented in separate Excel book.

Figure3.xlsx
application/vnd.openxmlformats-officedocument.spreadsheetml.sheet (17kB)
Creative Commons: Attribution 4.0

Injection voltage dependence of nonlocalmanipulation of FM toluene molecules with a corner-hole injection site from Figure 3. Radial distributions for each voltage in Excel (Office Open XML) spreadsheet format. Size of supression region in first Excel book, raw datapoints of radial distributions in second Excel book.

Figure5.xlsx
application/vnd.openxmlformats-officedocument.spreadsheetml.sheet (43kB)
Creative Commons: Attribution 4.0

Normalised density of states of the empty states. Each spectrum isthe average of: 10, UM; 14, FM; 21, UC; 25, FC individual spectra, respectively. Spectra from Figure 5 in Excel (Office Open XML) spreadsheet format. Each site is presented in a separte Excel book.

Figure4.xlsx
application/vnd.openxmlformats-officedocument.spreadsheetml.sheet (19kB)
Creative Commons: Attribution 4.0

Injection bias dependence for electron injections into CH sites. Nonlocal manipulation of FM toluene molecules from Figure 4 in Excel (Office Open XML) spreadsheet format. Book 1: values for beta; Book 2: values for lambda; Book 3: values for R; Book 4: STS.

SupplementaryFigure.xlsx
application/vnd.openxmlformats-officedocument.spreadsheetml.sheet (4MB)
Creative Commons: Attribution 4.0

Raw injection data - tip height, STM bias, STM current - for the charge injection experiment in Figure 3 in Excel (Office Open XML) spreadsheet format. This data is plotted in panel (b) of the supplementary figure.

Creators

Peter Sloan
University of Bath

Rebecca Purkiss
University of Bath

Henry Etheridge
University of Bath

Documentation

Data collection method:

Full details of the methodology are available in the associated manuscript and supplementary materials.

Funders

Engineering and Physical Sciences Research Council (EPSRC)
https://doi.org/10.13039/501100000266

Breaking the Single Atom Limit in Atomic Manipulation
EP/K00137X/1

Engineering and Physical Sciences Research Council (EPSRC)
https://doi.org/10.13039/501100000266

EPSRC Centre for Doctoral Training in Condensed Matter Physics
EP/L015544/1

Publication details

Publication date: 5 September 2019
by: University of Bath

Version: 1

DOI: https://doi.org/10.15125/BATH-00622

URL for this record: https://researchdata.bath.ac.uk/id/eprint/622

Related articles

Purkiss, R. M, Etheridge, H. G, Sloan, P. A and Rusimova, K. R, 2019. Common source of light emission and nonlocal molecular manipulation on the Si(111)−7 × 7 surface. Journal of Physics Communications, 3(9), p.095010. Available from: https://doi.org/10.1088/2399-6528/ab41a1.

Contact information

Please contact the Research Data Service in the first instance for all matters concerning this item.

Contact person: Kristina Rusimova

Departments:

Faculty of Science
Physics

Research Centres & Institutes
Centre for Nanoscience and Nanotechnology
Centre for Photonics and Photonic Materials