Kambe T., Sakamoto R., Kusamoto T. et al. · Journal of the American Chemical Society · 2014 · 14357-14360
Open a family to keep every result attached to its sample, method and conditions.
Paraphrased for this database from the authors’ stated interpretations — never quoted verbatim — and kept separate from reported measurements.
Controlled oxidation state in nickel bis(dithiolene) nanosheets is presented as a step towards an organic two-dimensional topological insulator.
Caveat: The paper positions this as potential/future relevance; it does not demonstrate a 2D topological-insulator device.
main p.1, article p.14357 · Introduction · Figure 1 · Linked to 3 structured results
Chemical oxidation and reduction control the oxidation state of nickel bis(dithiolene) units, providing an electrochemical doping channel in the nanosheet.
Caveat: Assignment is based on S 2s XPS deconvolution; the base ap-1 synthesis details are cited to prior work.
main p.2, article p.14358 · Redox control and XPS · Figures 1-2 and S1-S3 · Linked to 3 structured results
Oxidised ox-1 exhibits very high intrinsic conductivity for a coordination polymer when measured as a single microflake by SEM-controlled van der Pauw methods.
Caveat: Conductivity has a reported 10% error and was measured on single microflakes with 1 um thickness.
main p.2, article p.14358 · Electrical conductivity · Figure 3 · Linked to 3 structured results
PES and DFT suggest metallic electronic structure for 1, while van der Pauw conductivity shows semiconductive temperature dependence with small activation energies.
Caveat: Authors explicitly note a discrepancy between metallic PES/DFT signatures and semiconductive transport, possibly due to structural disorder; ap-1 contains Na+ countercation.
main p.3, article p.14359 · Conclusion · Figures 3-5 · Linked to 4 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| Nickel bis(dithiolene) complex pi-nanosheet 1Browse family: Ni₃(C₆S₆)₂ / Ni–BHT / NiDT | Nickel bis(dithiolene) complex nanosheet; exact empirical formula not reported in this paperNickel bis(dithiolene) complex units with Ni-S coordination in a pi-conjugated framework · Benzenehexathiol-derived phenylene/dithiolene linkers | 2D · PristineSingle-layer nickel bis(dithiolene) complex nanosheets forming a hexagonal kagome lattice; handled here as stacked nanosheets called 1. | main p.1, article p.14357 · Introduction · Figure 1 |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| ap-1 as-prepared stacked nickel bis(dithiolene) nanosheetsresearch_0361__mat__ni_bis_dithiolene_pi_nanosheet_1 | Nanosheet · Target Sample · Pristine Framework | As-prepared stacked nanosheets, average nickel bis(dithiolene) oxidation number -3/4. | main p.2, article p.14358 · Redox control and XPS · Figure 2 |
| single-layered ap-1 deposited on HOPG for PESresearch_0361__mat__ni_bis_dithiolene_pi_nanosheet_1 | Thin Film · Target Sample · Pristine Framework | Single-layered ap-1 deposited ten times on HOPG for photoelectron emission spectroscopy.HOPG substrate attached to copper stage with Ag paste and carbon ink masking · single-layered ap-1 deposited 10 times | SI p.S3 · Photoemission spectroscopy · Figure 4 |
| ap-1 single microflake van der Pauw sampleresearch_0361__mat__ni_bis_dithiolene_pi_nanosheet_1 | Nanosheet · Target Sample · Pristine Framework | Microflake deposited from dichloromethane/ethanol suspension; four tungsten tips positioned under SEM for van der Pauw measurement.HMDS-modified p-doped silicon wafer with thermally grown 100 nm SiO2 · 1 um | SI p.S3 · Electrical conductivity measurement · Figures 3 and S5 |
| ox-1 first-principles periodic modelresearch_0361__mat__ni_bis_dithiolene_pi_nanosheet_1 | Model · Model System · Model | DFT-relaxed structure for zero oxidation state ox-1.not_applicable · Periodic model using experimental lattice constants a = b = 14.1 A, c = 7.6 A | SI p.S3 · First principles calculation · Figure 5 |
| ox-1 oxidised nickel bis(dithiolene) nanosheetsresearch_0361__mat__ni_bis_dithiolene_pi_nanosheet_1 | Nanosheet · Target Sample · Doped | Chemically oxidised from ap-1; nickel bis(dithiolene) units assigned to oxidation state 0. | main p.2, article p.14358 · Redox control and XPS · Figures 2-3 |
| ox-1 single microflake van der Pauw sampleresearch_0361__mat__ni_bis_dithiolene_pi_nanosheet_1 | Nanosheet · Target Sample · Doped | Microflake deposited from dichloromethane/ethanol suspension; four tungsten tips positioned under SEM for van der Pauw measurement.HMDS-modified p-doped silicon wafer with thermally grown 100 nm SiO2 · 1 um | SI p.S3 · Electrical conductivity measurement · Figures 3 and S5 |
| red-1 reduced nickel bis(dithiolene) nanosheetsresearch_0361__mat__ni_bis_dithiolene_pi_nanosheet_1 | Nanosheet · Target Sample · Doped | Chemically reduced from ap-1; nickel bis(dithiolene) units assigned to oxidation state -1. | main p.2, article p.14358 · Redox control and XPS · Figure 2 |