Electrical Transport — Tunneling Electrical Connection to the Interior of Metal-Organic Frameworks

Measurement evidence

Electrical Transport

Tunneling Electrical Connection to the Interior of Metal-Organic Frameworks · Han S., Warren S.C., Yoon S.M. et al. · Journal of the American Chemical Society · 2015 · 8169-8175

8 measurement groups · 28 results

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

conductivity cycling under argon flow

AgNC@Rb-CD-MOF from 10 mM AgNO3 · Single Crystal

Alternating irradiation cycles; 1.48 W/cm2; Ar pressure ~2 atm; wavelength cut-on filter experiment in Figure S5b

Temperature
334 K for S5a illuminated AgNC cycles; 304-318 K for wavelength-filtered S5b labels
Atmosphere
argon flow, pressure ~2 atm
Geometry
two-probe crystal device
Context
AgNC-loaded versus blank Rb-CD-MOF
Measurement source
10 · Section 5 · Figure S5
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
AgNC@Rb-CD-MOF argon-flow dark plateau~2.0 x 10^-10 S/cm between irradiation pulsesFigure Axis
Approximate
S10 · Section 5 · Figure S5a
AgNC@Rb-CD-MOF argon-flow illuminated plateau~8.8 x 10^-10 S/cm under 1.48 W/cm2 at 334 KFigure Axis
Approximate
S10 · Section 5 · Figure S5a
Highest wavelength-filter response in Figure S5b~4.5 x 10^-10 S/cm near 500 nm cut-on, 318 KFigure Axis
Approximate
S10 · Section 5 · Figure S5b
Blank Rb-CD-MOF argon-flow conductivity~4.5-6.0 x 10^-12 S/cmFigure Axis
Range
S10 · Section 5 · Figure S5a

extended cyclic photoconductivity under high-intensity light

AgNC@Rb-CD-MOF from 10 mM AgNO3 · Single Crystal

1.48 W/cm2 irradiation cycles; dark-light cycles over 900-5400 s

Temperature
not reported
Atmosphere
not specified in section; likely same conductance setup
Geometry
two-probe crystal device
Context
AgNC-loaded Rb-CD-MOF
Measurement source
12 · Section 7 · Figure S7
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
First high-intensity cycle peak conductivity~3.5 x 10^-7 S/cm under 1.48 W/cm2Figure Axis
Approximate
S12 · Section 7 · Figure S7
High-intensity cycling repeatabilitydark-light cycles do not give repeatable readings; irreversible changes indicatedCaption
Qualitative
S12 · Section 7 · Figure S7

light-intensity-dependent I-V conductivity

AgNC@Rb-CD-MOF from 10 mM AgNO3 · Single Crystal

Constant temperature 352 K; white-light intensity varied from 314 to 595 mW/cm2 and beyond in Figure 3d

Temperature
352
Atmosphere
vacuum <0.1 mTorr
Geometry
two-probe single-crystal device in MMR chamber
Context
AgNC-loaded Rb-CD-MOF
Measurement source
3-4 · Results and Discussion · Figure 3b,d
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
AgNC@Rb-CD-MOF conductivity at 314 mW/cm2 and 352 K3.6 x 10^-9 S/cmText
Rounded Reported
3 · Results and Discussion · Figure 3b,d
AgNC@Rb-CD-MOF conductivity at 595 mW/cm2 and 352 K1.47 x 10^-8 S/cmText
Rounded Reported
3 · Results and Discussion · Figure 3b,d

conductivity versus AgNC volume fraction plot

AgNC@Rb-CD-MOF from 2 mM AgNO3 · Single Crystal

Samples prepared from 2, 5 and 10 mM AgNO3; conductivity measured under 430 mW/cm2 light irradiation

Temperature
not specified for Figure S8
Atmosphere
as described for other samples in main text
Geometry
two-probe crystal device
Context
AgNC-loaded Rb-CD-MOF series
Measurement source
12 · Section 8 · Figure S8
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
ln(sigma) high Ag loading under 430 mW/cm2~ -20.0 at (V%)-1/3 ~4.15Figure Axis
Approximate
S12 · Section 8 · Figure S8
ln(sigma) low Ag loading under 430 mW/cm2~ -22.55 at (V%)-1/3 ~5.3Figure Axis
Approximate
S12 · Section 8 · Figure S8
ln(sigma) medium Ag loading under 430 mW/cm2~ -20.9 at (V%)-1/3 ~4.6Figure Axis
Approximate
S12 · Section 8 · Figure S8

temperature-dependent I-V conductivity and Arrhenius analysis

AgNC@Rb-CD-MOF from 10 mM AgNO3 · Single Crystal

Constant light intensity 314 mW/cm2; sample temperature varied using heating stage and K20 controller

Temperature
330-350 K range reported; Arrhenius range shown in Figure 3e
Atmosphere
vacuum <0.1 mTorr
Geometry
two-probe single-crystal device in MMR chamber
Context
AgNC-loaded Rb-CD-MOF
Measurement source
3-4 · Results and Discussion · Figure 3a,c,e
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Dark activation energy0.92 eVText
Rounded Reported
4 · Results and Discussion · Figure 3f
Activation energy under 314 mW/cm2 light0.77 eVText
Rounded Reported
4 · Results and Discussion · Figure 3e
AgNC@Rb-CD-MOF conductivity at 330 K, 314 mW/cm26.8 x 10^-10 S/cm at 330 KText
Rounded Reported
3 · Results and Discussion · Figure 3a,c
AgNC@Rb-CD-MOF conductivity at 350 K, 314 mW/cm23.1 x 10^-9 S/cm at 350 KText
Rounded Reported
3 · Results and Discussion · Figure 3a,c
Temperature dependence rate at 314 mW/cm27.7% per deg CText
Rounded Reported
3 · Results and Discussion · Figure 3c

two-probe I-V conductance/conductivity using silver paste electrodes and Keithley 6517B

AgNC@Rb-CD-MOF from 10 mM AgNO3 · Single Crystal

High-vacuum MMR chamber <0.1 mTorr; AgNC@Rb-CD-MOF from 10 mM AgNO3; dark and white-light irradiation

Temperature
varied; light heating noted
Atmosphere
vacuum <0.1 mTorr
Geometry
two opposite facets of ca. 100 um thick crystal contacted by silver paste; I-V typically -20 V to +20 V
Context
AgNC-loaded single crystal
Measurement source
3 · Results and Discussion · Figure 2
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
AgNC@Rb-CD-MOF dark conductivity (10 mM AgNO3)~2 x 10^-11 S cm^-1Text
Approximate
3 · Results and Discussion · Figure 2
AgNC@Rb-CD-MOF dark conductivity in Figure 2b~2 x 10^-11 S cm^-1 in darkCaption
Approximate
3 · Results and Discussion · Figure 2b
AgNC@Rb-CD-MOF conductivity at 630 mW/cm21.8 x 10^-8 S cm^-1 under light irradiation (630 mW/cm2)Caption
Rounded Reported
3 · Results and Discussion · Figure 2b
AgNC@Rb-CD-MOF conductivity under 1.48 W/cm2Marked as a best value within this paper2.15 x 10^-7 S cm^-1Text
Rounded Reported
3 · Results and Discussion · Figure 2

two-probe I-V photoconductance/conductivity of thin film

AgNC@MIL-53 thin-film device on glass with Au electrodes · Thin Film

AgNC@MIL-53 film; dark at 298, 326 and 352 K; photocurrent at 326 and 352 K under 595 mW/cm2 white light

Temperature
298, 326, 352
Atmosphere
not reported
Geometry
AgNC@MIL-53 film on glass with Au electrodes
Context
AgNC-loaded MIL-53 film
Measurement source
5-6 · Results and Discussion · Figure 5
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
AgNC@MIL-53 dark conductivity at 326 K7.52 x 10^-9 S/cmText
Exact Reported
6 · Results and Discussion · Figure 5
AgNC@MIL-53 illuminated conductivity at 326 K, 595 mW/cm23.24 x 10^-8 S/cmText
Exact Reported
6 · Results and Discussion · Figure 5
AgNC@MIL-53 dark conductivity at 352 K1.19 x 10^-8 S/cmText
Exact Reported
6 · Results and Discussion · Figure 5
AgNC@MIL-53 illuminated conductivity at 352 K, 595 mW/cm22.67 x 10^-7 S/cmText
Exact Reported
6 · Results and Discussion · Figure 5
AgNC@MIL-53 photoconductivity factor at 326 K4.3 times increaseText
Rounded Reported
6 · Results and Discussion · Figure 5
AgNC@MIL-53 photoconductivity factor at 352 K22.3 times increaseText
Rounded Reported
6 · Results and Discussion · Figure 5

two-probe I-V conductance/conductivity using silver paste electrodes and Keithley 6517B

Blank Rb-CD-MOF single crystals · Single Crystal

High-vacuum MMR chamber <0.1 mTorr; dark and white-light irradiation up to 1.48 W/cm2

Temperature
not fixed; light heating noted
Atmosphere
vacuum <0.1 mTorr
Geometry
two opposite crystal facets covered with thin (~hundreds um) conductive quick-drying silver paste
Context
pristine control
Measurement source
3 · Results and Discussion · Figure 2
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Blank Rb-CD-MOF dark conductivity~10^-12 S cm^-1Text
Approximate
3 · Results and Discussion · Figure 2
Blank Rb-CD-MOF conductivity under 1.48 W/cm2~2 x 10^-11 S cm^-1 upon 1.48 W/cm2 irradiationText
Approximate
3 · Results and Discussion · Figure 2