Electrical Transport — Underpinning the conductivity mechanism in wide bandgap metal organic framework through chemical sensing

Measurement evidence

Electrical Transport

Underpinning the conductivity mechanism in wide bandgap metal organic framework through chemical sensing · Pulumati N.B., Urs Mb K., Mandal S. et al. · AIP Advances · 2020 · 085105

2 measurement groups · 7 results

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

Temperature-dependent conductance/current analysis; Arrhenius fit

50-50 Zn:Co ZIF conductometric gas sensor device · Electrode

Current versus temperature obtained by equilibrating samples at various temperatures; activated-transport fit shown in SI Fig. S5.

Atmosphere
air/device atmosphere not explicitly stated
Geometry
drop-cast films on Au interdigitated electrodes
Context
Comparison of ZIF-8, ZIF-67, and 50-50 Zn:Co sensors.
Measurement source
p005 · Electrical transport studies · Fig. S5 cited
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
50-50 Zn/Co ZIF activated-transport activation energy361 meV0.361 eVText
Rounded Reported
p005 · Electrical transport studies · Fig. S5 cited; SI Fig. S5
ZIF-67 activated-transport activation energyMarked as a best value within this paper351 meV0.351 eVText
Rounded Reported
p005 · Electrical transport studies · Fig. S5 cited; SI Fig. S5
ZIF-8 activated-transport activation energy381 meV0.381 eVText
Rounded Reported
p005 · Electrical transport studies · Fig. S5 cited; SI Fig. S5

Mott 3D variable range hopping plot of sigma*T^(1/2) versus T^(-1/4)

50-50 Zn:Co ZIF conductometric gas sensor device · Electrode

VRH linearisation for ZIF-8, ZIF-67, and the 50-50 mixture.

Geometry
drop-cast films on Au interdigitated electrodes
Context
Comparison of ZIF-8, ZIF-67, and 50-50 Zn:Co sensors.
Measurement source
p005 · Electrical transport studies · Fig. 4
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
VRH linear fit qualityall plots are perfectly linearText
Qualitative
p005 · Electrical transport studies · Fig. 4
50-50 Zn/Co ZIF Mott temperature fourth-root parameterMarked as a best value within this paperT_M^(1/4) = 155.2Figure Axis
Rounded Reported
p005 · Electrical transport studies · Fig. 4
ZIF-67 Mott temperature fourth-root parameterT_M^(1/4) = 155.9Figure Axis
Rounded Reported
p005 · Electrical transport studies · Fig. 4
ZIF-8 Mott temperature fourth-root parameterT_M^(1/4) = 169Figure Axis
Rounded Reported
p005 · Electrical transport studies · Fig. 4