Electrical Transport — Superexchange Charge Transport in Loaded Metal Organic Frameworks

3 measurement groups · 13 results

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

Hg-drop tunnelling junction current-voltage measurement

Electrical conductivity

F4-TCNQ-loaded HKUST-1 SURMOF, 5 spray cycles · Thin Film

F4-TCNQ-loaded SURMOF measured in Hg/HDT//SURMOF/CMMT/Au geometry; bias swept as for pristine samples; 5-10 positions averaged.

Geometry: vertical junction normal to substrate, Hg/HDT//SURMOF/CMMT/Au
Context: guest-loaded target compared with pristine HKUST-1 SURMOF
Measurement source: 7090 · Results and Discussion · Figure 5

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
F4-TCNQ-loaded current density at 0.5 V	approximately 1e-4 A/cm2 at +0.5 V from Figure 5a	—	visual estimate	Figure Axis Approximate	7090 · Results and Discussion · Figure 5a
Current-density increase upon F4-TCNQ loading	4-5 orders of magnitude in Figure 5; up to 6-7 orders in other samples	—	range 4-7 orders depending on sample set	Text Range	S11 · 2.4 F4-TCNQ loading: electrical transport properties · Figure 5a,b

Hg-drop tunnelling junction current-voltage measurement

Electrical conductivity

Pristine HKUST-1 SURMOF, 5 spray cycles · Thin Film

Passivated mercury-drop top electrode, conductive Au bottom electrode; Hg/HDT//SURMOF/CMMT/Au junction; bias swept -0.5 to -0.01 V and 0.01 to 0.5 V; 5-10 positions averaged.

Geometry: vertical junction normal to substrate, Hg/HDT//SURMOF/CMMT/Au
Context: pristine control
Measurement source: S4-S5 · 1.5 Electrical transport measurements · Figure S2

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Pristine attenuation factor beta	0.0059 A^-1	—	—	Text Exact Reported	S10 · 2.2 TCNQ loading: electrical transport properties · Figure S7
Pristine current density at 0.5 V	approximately 1e-9 A/cm2 at +0.5 V from Figure 5a	—	visual estimate	Figure Axis Approximate	7090 · Results and Discussion · Figure 5a
Pristine HKUST-1 SURMOF resistivityMarked as a best value within this paper	about 7.1 x 10^12 ohm m	1.408450704225352e-13 S/m	—	Text Rounded Reported	7090 · Results and Discussion · Figure 5c

Hg-drop tunnelling junction current-voltage measurement

Electrical conductivity

TCNQ-loaded HKUST-1 SURMOF, 5 spray cycles · Thin Film

TCNQ-loaded SURMOF measured in Hg/HDT//SURMOF/CMMT/Au geometry; bias swept as for pristine samples; 5-10 positions averaged.

Geometry: vertical junction normal to substrate, Hg/HDT//SURMOF/CMMT/Au
Context: guest-loaded target compared with pristine HKUST-1 SURMOF
Measurement source: 7090 · Results and Discussion · Figure 5

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Alternative DCM loading effect	homogeneously loaded DCM samples showed the same electrical transport effect as ethanol-loaded samples	—	—	Text Qualitative	S11 · 2.5 Results for an alternative solvent
Alternative SAM template TCNQ transport effect	same effect of TCNQ loading as for CMMT template	—	—	Text Qualitative	S11 · 2.6 Results for an alternative SAM template
TCNQ-loaded attenuation factor beta	0.0105 A^-1	—	—	Text Exact Reported	S10 · 2.2 TCNQ loading: electrical transport properties · Figure S7
TCNQ-loaded current density at 0.5 V	approximately 3e-4 A/cm2 at +0.5 V from Figure 5a	—	visual estimate	Figure Axis Approximate	7090 · Results and Discussion · Figure 5a
Current-density increase upon TCNQ loading	4-5 orders of magnitude	—	range 4-5 orders	Text Range	7090 · Results and Discussion · Figure 5a
Current-density increase upon TCNQ loading across SI thickness series	5-6 orders of magnitude	—	range 5-6 orders	Text Range	S10 · 2.2 TCNQ loading: electrical transport properties · Figure S7
TCNQ-loaded HKUST-1 SURMOF resistivityMarked as a best value within this paper	5.2 x 10^7 ohm m	1.923076923076923e-8 S/m	—	Text Rounded Reported	7090 · Results and Discussion · Figure 5d
TCNQ-loaded resistivity reduction versus pristine	at least 5 orders lower than pristine MOF	—	—	Text Approximate	7090 · Results and Discussion · Figure 5c,d