Fu S., Huang X., Gao G. et al. · Nature Materials · 2025 · 1457-1464
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.
Hot carriers propagate 200-320 nm, exceeding the average grain size and indicating cross-boundary transport behaviour in Cu3BHT films.
Caveat: Propagation length is condition-dependent and estimated from TAM spatial profiles.
7 · Spatiotemporal and energetic evolution · Fig. 4g; Supplementary Fig. 17 · Linked to 3 structured results
The semiconducting behaviour of thin Cu3BHT films versus metallic behaviour of bulk/thick Cu3BHT is attributed to thickness-dependent stacking, crystallinity and interlayer Cu-S bonding during liquid-liquid interfacial growth.
Caveat: The statement is an explanatory interpretation comparing this thin-film sample with literature bulk crystals; not all compared samples are first-hand here.
2 · Synthesis and characterization · Linked to 4 structured results
After cooling, band-edge carriers exhibit Drude-type, band-like quasi-equilibrium transport with high intrinsic mobility and long diffusion length.
Caveat: TRTS probes local intracrystal transport; TAM over longer length scales gives lower ambipolar mobility due to grain boundaries.
5-7 · Crossover; Spatiotemporal evolution · Fig. 3; Supplementary Fig. 17 · Linked to 5 structured results
Above-bandgap photoexcitation creates hot carriers with much higher mobility than band-edge carriers; cooling of these hot carriers drives the fast THz photoconductivity decay.
Caveat: Hot-carrier mobility is inferred from photoconductivity ratio rather than directly measured by a steady-state device.
4-5 · Highly mobile hot carriers; Crossover · Figs. 2-3 · Linked to 5 structured results
A hot-phonon bottleneck prolongs hot-carrier cooling at higher absorbed photon density and stronger excitation conditions.
Caveat: Interpretation is mechanistic and relies on correlation among TRTS, Raman and temperature-dependent scattering rates.
4 · Highly mobile hot carriers · Fig. 2e; Supplementary Fig. 18 · Linked to 4 structured results
The synthesized Cu3BHT thin film behaves as a semiconductor rather than as metallic bulk Cu3BHT, supported by positive THz photoconductivity, UPS, Tauc absorption edge and negative temperature coefficient of conductivity.
Caveat: Room-temperature conductivity is still high for a semiconductor; authors explicitly contrast it with literature metallic bulk crystals.
2 · Synthesis and characterization · Supplementary Figs. 8-9 · Linked to 4 structured results
Names and aliases are kept exactly within the paper’s own identity model.
| Material | Composition | Structure context | Source |
|---|---|---|---|
| benzenehexathiol (BHT) | C6H6S6 (benzenehexathiol)none · precursor ligand for Cu3BHT | 0D · UnknownMolecular linker precursor synthesized through protected benzylthio intermediate and BBr3 deprotection/hydrolysis. | 9 · Methods - Synthesis of BHT · Supplementary Scheme 1 |
| Cu3BHT two-dimensional conjugated coordination polymerBrowse family: Cu₃(C₆S₆) / Cu–BHT | Cu3BHT; benzenehexathiolato copper coordination polymerCu atoms / Cu2+ source; mixed Cu+/Cu2+ valence reported · BHT (benzenehexathiol / benzenehexathiolate) | 2D · PristineCrystalline 2D d-pi conjugated coordination polymer; high-symmetry non-distorted kagome lattice; slipped-AA-stacked triclinic structure, preferential face-on orientation. | 2 · Synthesis and characterization of Cu3BHT films · Fig. 1 |
| Cu3BHT DFT model systems with varied Cu valence ratiosBrowse family: Cu₃(C₆S₆) / Cu–BHT | Cu3BHT models, Cu2+/Cu+ ratios 3:0, 2:1, 1:2 and 0:3Cu+/Cu2+ configurations imposed in DFT · BHT framework model | 2D · Model SystemDFT model of Cu3BHT band structure and DOS with different copper valence-state configurations. | 3 · Computational details · Supplementary Fig. 7 |
Sample form, processing state and composition status define the context for measurements.
| Sample | Form and role | Processing and geometry | Source |
|---|---|---|---|
| BHT white powderresearch_0249__mat__bht_ligand | Powder · Paper Level Unspecified · Unknown | isolated ligand precursor after methanol hydrolysisnone · not applicable | 9 · Methods - Synthesis of BHT |
| Cu3BHT film transferred onto highly doped conductive siliconresearch_0249__mat__cu3bht | Thin Film · Target Sample · Pristine Framework | transferred before XPS/UPS characterizationhighly doped conductive silicon · not separately stated; same synthesized Cu3BHT film family | 3 · Basic characterization |
| large-area Cu3BHT film on fused silicaresearch_0249__mat__cu3bht | Thin Film · Target Sample · Pristine Framework | liquid-liquid interfacial film transferred/settled onto substrate, washed with methanol and acetone, dried overnight under ambient conditionsfused silica substrate for optical/AFM/TAM examples; target substrate varied in synthesis · ~20 nm | 5 · Supplementary Fig. 1 · Supplementary Fig. 1 |
| Cu3BHT DFT valence-state model seriesresearch_0249__mat__cu3bht_dft_model | Model · Model System · Model | DFT-relaxed unit cell and electronic structure modelsnone · not applicable | 3 · Computational details |