Computational Modelling — Direct Evidence of Photoinduced Charge Transport Mechanism in 2D Conductive Metal Organic Frameworks

Measurement evidence

Computational Modelling

Direct Evidence of Photoinduced Charge Transport Mechanism in 2D Conductive Metal Organic Frameworks · Nyakuchena J., Ostresh S., Streater D. et al. · Journal of the American Chemical Society · 2020 · 21050-21058

2 measurement groups · 8 results

Reported values remain attached to the sample, method, conditions, extraction quality and source location that produced them.

DFT band-structure calculation using GPAW/ASE, PAW, PBEsol structural optimisation and revised-PBE electronic band structure

Cu-THQ DFT model unit cell · Model

Double-zeta planewave basis, 400 eV kinetic-energy cutoff; 1x1x3 k-point mesh for structural optimisation and 5x5x5 mesh for electronic band structure; convergence forces <0.01 eV/A.

Geometry
Optimised computational unit cell
Context
Cu-THQ electronic-structure model.
Measurement source
21052 · Computational Modeling · Figure 4
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Cu-THQ X-Gamma effective mass relative to Zn-THQ20% lower effective electron mass along X-Gamma in Cu-THQ than Zn-THQ0.8 relative_effective_mass_vs_Zn-THQText
Rounded Reported
21056 · 3.5. Electronic Structure Predicted by DFT · Figure 4a,b
Cu-THQ effective electron mass along X-Gammam* = 0.37 me from Figure 4afigure-label readFigure Axis
Rounded Reported
21055 · 3.5. Electronic Structure Predicted by DFT · Figure 4a
Cu-THQ effective electron mass along Y-Gamma4.7 meText
Rounded Reported
21056 · 3.5. Electronic Structure Predicted by DFT · Figure 4a
Cu-THQ effective electron mass along Z-Gamma3.5 meText
Rounded Reported
21056 · 3.5. Electronic Structure Predicted by DFT · Figure 4a
DFT valence-band Fermi-level crossingFor each MOF, the valence band crosses the respective Fermi level, indicating ground-state conductivity is thermodynamically possibleText
Qualitative
21056 · 3.5. Electronic Structure Predicted by DFT · Figure 4a,b

DFT band-structure calculation using GPAW/ASE, PAW, PBEsol structural optimisation and revised-PBE electronic band structure

Zn-THQ DFT model unit cell · Model

Same method as Cu-THQ model; band structure and atom-projected DOS compared with Cu-THQ.

Geometry
Optimised computational unit cell
Context
Zn-THQ electronic-structure model.
Measurement source
21055 · 3.5. Electronic Structure Predicted by DFT · Figure 4b
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Zn-THQ effective electron mass along X-Gammam* = 0.46 me from Figure 4bfigure-label readFigure Axis
Rounded Reported
21055 · 3.5. Electronic Structure Predicted by DFT · Figure 4b
Zn-THQ effective electron mass along Y-Gamma9.1 meText
Rounded Reported
21056 · 3.5. Electronic Structure Predicted by DFT · Figure 4b
Zn-THQ effective electron mass along Z-Gamma27 meText
Rounded Reported
21056 · 3.5. Electronic Structure Predicted by DFT · Figure 4b