Electrical Transport — Near IR Bandgap Semiconducting 2D Conjugated Metal-Organic Framework with Rhombic Lattice and High Mobility

3 measurement groups · 17 results

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

Terahertz time-domain spectroscopy with Drude-Smith fit

Terahertz spectroscopy

Cu2(OHPTP) powder between fused-silica windows, 280 um · Powder

280 um Cu2(OHPTP) powder between fused silica windows at 300 K; non-contact frequency-resolved complex conductivity; ambient/nitrogen-flushed conditions.

Temperature: 300
Atmosphere: ambient / nitrogen flushing
Geometry: powder between fused silica windows, transmission THz-TDS
Context: pristine framework powder
Measurement source: 8 · Results and Discussion · Figure 5a

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
literature comparison context	Table S4 compares reported 2D c-MOF conductivities and mobilities; Cu2(OHPTP) values are discussed as superior to semiquinone-based 2D c-MOFs	—	—	SI Table Qualitative	25 · Section Q · Table S4
carrier density from THz-TDSMarked as a best value within this paper	N = 6.7 x 10^16 cm-3	67000000000000000 cm-3	—	Calculated From Reported Exact Reported	8 · Results and Discussion · Figure 5a
Drude-Smith backscattering parameter	c = -0.97	—	—	Text Exact Reported	8 · Results and Discussion · Figure 5a
charge-carrier mobility from THz-TDSMarked as a best value within this paper	10.0 cm2 V-1 s-1	10 cm2 V-1 s-1	—	Calculated From Reported Exact Reported	8 · Results and Discussion · Figure 5a
Drude-Smith plasma frequency	omega_p = 13.28 THz	13.28 THz	—	Text Exact Reported	8 · Results and Discussion · Figure 5a
zero-frequency extrapolated DC conductivity	sigma_DC = 0.1 S cm-1	0.1 S cm-1	—	Calculated From Reported Exact Reported	8 · Results and Discussion · Figure 5a
extrapolated macroscopic single-crystal mobility if c_DS = 0	mu = 300 cm2 V-1 s-1	300 cm2 V-1 s-1	—	Calculated From Reported Approximate	8 · Results and Discussion · Figure 5a
Drude-Smith scattering time	tau_s = 0.205 ps	0.205 ps	—	Text Exact Reported	8 · Results and Discussion · Figure 5a

Temperature-dependent THz-TDS with Drude-Smith fits

Terahertz spectroscopy

Cu2(OHPTP) powder between fused-silica windows, 150 um, vacuum · Powder

150 um powder in fused-silica windows measured under vacuum at 100, 150, 200, and 250 K.

Temperature: 100-250
Atmosphere: vacuum
Geometry: powder between fused silica windows, transmission THz-TDS
Context: pristine framework powder
Measurement source: 23 · Effect of the environment on the electric properties · Figure 5b-c / Figure S13

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
vacuum Drude-Smith backscattering parameter	about -0.92	—	large standard-error bars in Figure S13	Text Approximate	23 · Effect of the environment on the electric properties · Figure S13
vacuum THz mobility at 250 K	mu = 13.41 cm2 V-1 s-1	13.41 cm2 V-1 s-1	—	Text Exact Reported	23 · Effect of the environment on the electric properties · Figure 5c
vacuum static conductivity at 100 K	approximately 20 S cm-1 from Figure 5c(i)	20 S cm-1	—	Figure Axis Approximate	8 · Figure caption · Figure 5c(i)
vacuum static conductivity at 150 K	approximately 28 S cm-1 from Figure 5c(i)	28 S cm-1	—	Figure Axis Approximate	8 · Figure caption · Figure 5c(i)
vacuum static conductivity at 200 K	approximately 31 S cm-1 from Figure 5c(i)	31 S cm-1	—	Figure Axis Approximate	8 · Figure caption · Figure 5c(i)
vacuum static conductivity at 250 K	approximately 32 S cm-1 from Figure 5c(i)	32 S cm-1	—	Figure Axis Approximate	8 · Figure caption · Figure 5c(i)

Four-probe van-der-Pauw temperature-dependent conductivity

Electrical conductivity

Cu2(OHPTP) pellet for van-der-Pauw conductivity · Pellet

Commercial Lakeshore Hall System 9700A; pellet made from MOF powder; under argon; 40-300 K conductivity fit.

Temperature: 40-300
Atmosphere: argon
Geometry: van-der-Pauw four-probe pellet
Context: pristine framework bulk pellet
Measurement source: 7 · Results and Discussion · Figure 4c / Figure S12

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
thermal activation energy gap	~0.23 eV	0.23 eV	—	Text Approximate	7 · Results and Discussion · Figure 4c / Figure S12c
room-temperature DC conductivityMarked as a best value within this paper	0.1 S cm-1 at 300 K	0.1 S cm-1	—	Text Rounded Reported	7 · Results and Discussion · Figure 4c / Figure S12
3D Mott variable-range hopping fit	40-300 K conductivity data properly modelled by a 3D Mott variable range hopping model	—	—	Qualitative Qualitative	7 · Results and Discussion · Figure S12d