cMOF Evidence Base
Electrical Transport — Metal-Organic Framework Photoconductivity via Time-Resolved Terahertz Spectroscopy

Measurement evidence

Electrical Transport

Metal-Organic Framework Photoconductivity via Time-Resolved Terahertz Spectroscopy · Pattengale B., Neu J., Ostresh S. et al. · Journal of the American Chemical Society · 2019 · 9793-9797

2 measurement groups · 33 results

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

Optical-pump terahertz-probe (OPTP) transient photoconductivity

Terahertz spectroscopy

As-prepared Zn2TTFTB tape-cell sample · Powder

400 nm pump pulses; representative trace and four independent samples globally fit with Gaussian-convoluted triexponential function; IRF FWHM set to 0.6 ps.

Geometry
Tape-cell Zn2TTFTB sample; THz amplitude monitored at peak THz signal
Context
as-prepared pristine Zn2TTFTB powder in tape cell
Measurement source
p003 / 9795 · main text · Figure 3a; Figure S7; Table S1
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
OPTP amplitude A1, sample 174.4%——SI Table
Exact Reported		S11 · Supplementary Tables · Table S1
OPTP amplitude A1, sample 282.2%——SI Table
Exact Reported		S11 · Supplementary Tables · Table S1
OPTP amplitude A1, sample 372.1%——SI Table
Exact Reported		S11 · Supplementary Tables · Table S1
OPTP amplitude A1, sample 476.4%——SI Table
Exact Reported		S11 · Supplementary Tables · Table S1
OPTP amplitude A2, sample 121.7%——SI Table
Exact Reported		S11 · Supplementary Tables · Table S1
OPTP amplitude A2, sample 216.6%——SI Table
Exact Reported		S11 · Supplementary Tables · Table S1
OPTP amplitude A2, sample 322.3%——SI Table
Exact Reported		S11 · Supplementary Tables · Table S1
OPTP amplitude A2, sample 419.6%——SI Table
Exact Reported		S11 · Supplementary Tables · Table S1
OPTP amplitude A3, sample 13.9%——SI Table
Exact Reported		S11 · Supplementary Tables · Table S1
OPTP amplitude A3, sample 21.2%——SI Table
Exact Reported		S11 · Supplementary Tables · Table S1
OPTP amplitude A3, sample 35.6%——SI Table
Exact Reported		S11 · Supplementary Tables · Table S1
OPTP amplitude A3, sample 44.0%——SI Table
Exact Reported		S11 · Supplementary Tables · Table S1
OPTP measurement time window with remaining photoconductivity0.7 ns700 ps—Text
Exact Reported		p003 / 9795 · main text · Figure 3a
Fast OPTP decay lifetime tau1Marked as a best value within this paper0.60 +/- 0.03 ps—+/- 0.03 psSI Table
Exact Reported		S11 · Supplementary Tables · Table S1
Slower OPTP decay lifetime tau2Marked as a best value within this paper31 +/- 3 ps in SI Table S1; main text states 31 +/- 0.3 ps—+/- 3 ps (SI Table S1); +/- 0.3 ps in main textSI Table
Uncertain		S11 · Supplementary Tables · Table S1
Long-lived fixed OPTP decay lifetime tau3>> (10,000 ps; fixed)10 nsfixed value; much larger than measurement windowSI Table
Exact Reported		S11 · Supplementary Tables · Table S1

Time-resolved THz spectroscopy (TRTS) frequency-dependent photoconductivity

Terahertz spectroscopy

As-prepared Zn2TTFTB tape-cell sample · Powder

Spectrally resolved photoconductivity measured 500 fs after 400 nm photoexcitation; 0.25-0.75 THz and >2 THz resonance regions excluded from Drude-Smith fit.

Geometry
Tape-cell Zn2TTFTB sample; noncontact THz probe
Context
as-prepared pristine Zn2TTFTB powder in tape cell
Measurement source
p003 / 9795 · main text · Figure 3b; Figure S9; Table S2
PropertyReported valueNormalised valueUncertaintyOrigin and qualitySource
Average Drude-Smith carrier density NMarked as a best value within this paper10 +/- 2 x 10^15 cm-310000000000000000 cm-3+/- 2 x 10^15 cm-3SI Table
Exact Reported		S11 · Supplementary Tables · Table S2
Drude-Smith carrier density N, sample 111.90 x 10^15 cm-311900000000000000 cm-3—SI Table
Exact Reported		S11 · Supplementary Tables · Table S2
Drude-Smith carrier density N, sample 29.22 x 10^15 cm-39220000000000000 cm-3—SI Table
Exact Reported		S11 · Supplementary Tables · Table S2
Drude-Smith carrier density N, sample 39.05 x 10^15 cm-39050000000000000 cm-3—SI Table
Exact Reported		S11 · Supplementary Tables · Table S2
Average Drude-Smith backscattering parameter cMarked as a best value within this paper-0.86 +/- 0.01—+/- 0.01SI Table
Exact Reported		S11 · Supplementary Tables · Table S2
Drude-Smith backscattering parameter c, sample 1-0.87——SI Table
Exact Reported		S11 · Supplementary Tables · Table S2
Drude-Smith backscattering parameter c, sample 2-0.85——SI Table
Exact Reported		S11 · Supplementary Tables · Table S2
Drude-Smith backscattering parameter c, sample 3-0.86——SI Table
Exact Reported		S11 · Supplementary Tables · Table S2
Average carrier scattering timeMarked as a best value within this paper17 +/- 2 fs—+/- 2 fsSI Table
Exact Reported		S11 · Supplementary Tables · Table S2
Drude-Smith scattering time, sample 114.46 fs——SI Table
Exact Reported		S11 · Supplementary Tables · Table S2
Drude-Smith scattering time, sample 219.44 fs——SI Table
Exact Reported		S11 · Supplementary Tables · Table S2
Drude-Smith scattering time, sample 316.87 fs——SI Table
Exact Reported		S11 · Supplementary Tables · Table S2
Drude-Smith fit excluded high-frequency regionabove 2 THz excluded—lower boundText
Approximate		p003 / 9795 · main text · Figure 3b; Figure S10
Drude-Smith fit excluded resonance region upper bound0.25 to 0.75 THz excluded—range upper boundText
Range		p003 / 9795 · main text · Figure 3b; Figure S10
Drude-Smith fit excluded resonance region lower bound0.25 to 0.75 THz excluded—range lower boundText
Range		p003 / 9795 · main text · Figure 3b; Figure S10
Zn2TTFTB photoconductivity magnitude at 500 fsMarked as a best value within this paperapproximately 0.5 mS/cm0.0005 S/cm—Text
Approximate		p003 / 9795 · main text · Figure 3b
TRTS pump delay for photoconductivity spectrum500 fs0.5 ps—Text
Exact Reported		p003 / 9795 · main text · Figure 3b