Primary studyCore evidenceThermoelectric

2D Single-Layer π-Conjugated Nickel Bis(dithiolene) Complex: A Good-Electron-Poor-Phonon Thermoelectric Material

Deng T., Yong X., Shi W. et al. · Advanced Electronic Materials · 2019 · 1800892

2materials
2samples
0synthesis routes
10measurements
66results
5claims and caveats

Evidence map

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Author interpretations and caveats

Paraphrased for this database from the authors’ stated interpretations — never quoted verbatim — and kept separate from reported measurements.

Application RelevanceSupport assessment: High

Monolayer (NiC4S4)n is predicted to be a good-electron-poor-phonon thermoelectric material, combining high electron mobility, low lattice thermal conductivity and high zT.

Caveat: Prediction is for an ideal computational monolayer; real samples may be degraded by impurities, defects and boundaries.

1 · Abstract · Linked to 4 structured results

CaveatSupport assessment: High

Charged impurity scattering can markedly reduce the thermoelectric performance of (NiC4S4)n, making crystallinity important for experimental realisation.

Caveat: Impurity model uses idealised bare Coulomb scattering and effective impurity density.

7 · 2.3 Charge Transport and Thermoelectric Performance · Figure 4 · Linked to 2 structured results

CaveatSupport assessment: High

The paper does not report an experimental synthesis of (NiC4S4)n; it relies on first-principles and molecular dynamics modelling.

Caveat: Referenced experimental nickel bis(dithiolene) thin-film studies are literature context and were not extracted as synthesis routes.

2 · Introduction

Structure Property LinkSupport assessment: Medium

The microporous, soft and flexible crystal structure of (NiC4S4)n is proposed to enhance phonon scattering and reduce lattice thermal conductivity.

Caveat: Lattice thermal conductivity was simulated, not experimentally measured for (NiC4S4)n in this paper.

2 · Introduction · Linked to 3 structured results

Transport MechanismSupport assessment: High

Weak electron-acoustic-phonon coupling in (NiC4S4)n is attributed to cancellation between bonding and antibonding contributions in the conduction-band wavefunction.

Caveat: Mechanistic interpretation derives from deformation-potential-style computational analysis.

4 · 2.2 Electron-Phonon Scattering · Table 1 · Linked to 4 structured results

Material identities

Names and aliases are kept exactly within the paper’s own identity model.

MaterialCompositionStructure contextSource
monolayer molybdenum disulfide comparatorMoS2Mo in MoS2 lattice2D · Model Systemmonolayer transition-metal dichalcogenide comparator2 · Introduction
2D single-layer pi-conjugated nickel bis(dithiolene) complexBrowse family: Ni₃(C₆S₆)₂ / Ni–BHT / NiDT(NiC4S4)nplanar nickel tetrasulfide NiS4 groups · dithiolene / benzenehexathiol-derived pi-conjugated sulfur-carbon network2D · Model Systemmonolayer 2D coordination polymer / pi-conjugated nickel bis(dithiolene) nanosheet with microporous crystal structure and Kagome conduction bands2 · Introduction

Sample register

Sample form, processing state and composition status define the context for measurements.

Show 2 sample records
SampleForm and roleProcessing and geometrySource
perfect monolayer MoS2 modelresearch_0734__mat__mat_mos2Model · Model System · Modelrelaxed computational monolayer comparator0.615 nm effective thickness for converting 2D carrier concentration to 3D density5 · 2.3 Charge Transport and Thermoelectric Performance
perfect monolayer (NiC4S4)n model nanosheetresearch_0734__mat__mat_nic4s4Model · Model System · Modelrelaxed computational monolayer; Bernal-stacking bulk used only to derive effective thickness0.32 nm effective thickness for converting 2D carrier concentration to 3D density5 · 2.3 Charge Transport and Thermoelectric Performance