Electrical Transport — Engineering Band Gap and Photoconduction in Semiconducting Metal Organic Frameworks: Metal Node Effect

Measurement evidence

Electrical Transport

Engineering Band Gap and Photoconduction in Semiconducting Metal Organic Frameworks: Metal Node Effect · Nyakuchena J., Ostresh S., Neu J. et al. · Journal of Physical Chemistry Letters · 2023 · 5960-5965

1 measurement group · 19 results

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

Optical pump terahertz probe (OPTP) time-resolved photoconductivity

Terahertz spectroscopy

M-THQ mylar tape cell series · Powder

400 nm optical pump at 1 kHz, 110 mW; powdered M-THQ in 3 um mylar tape cell; Gaussian-convoluted single-exponential fit with long-time offset.

Geometry: 3 um mylar tape cell powder sample
Context: pristine MOF powders in nonconductive tape cell
Measurement source: 10 · OPTP spectroscopy · Figure 4 and Table S4

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Fe-THQ THz attenuation loss after two weeks in N2	~1% decrease in maximum THz attenuation after two weeks in 99% N2 at 140 mW, 400 nm	—	~	Text Approximate	12 · Fe-THQ oxidation · Figure S8
Cu-THQ OPTP fit A1	0.0259	—	—	SI Table Exact Reported	10 · Table S4 · Table S4
Cu-THQ previously reported photoconductivity comparison	0.2 S/m from previous report	—	—	Text Exact Reported	11 · OPTP spectroscopy
Cu-THQ OPTP fit tau1	0.426 ps	—	—	SI Table Exact Reported	10 · Table S4 · Table S4
Cu-THQ OPTP long-time offset y0	0.00147	—	—	SI Table Exact Reported	10 · Table S4 · Table S4
Fe-THQ OPTP fit A1Marked as a best value within this paper	0.0667	—	—	SI Table Exact Reported	10 · Table S4 · Table S4
Fe-THQ long-lived THz componentMarked as a best value within this paper	-0.2% THz, about one third of total signal	—	—	Text Rounded Reported	11 · OPTP spectroscopy · Figure 4a
Fe-THQ photoconductivity after 2 ps pump delayMarked as a best value within this paper	7.7 S/m	—	—	Text Exact Reported	11 · OPTP spectroscopy · Figure 4b
Fe-THQ photoconductivity after 3.5 ps pump delay	6.1 S/m	—	—	Text Exact Reported	11 · OPTP spectroscopy · Figure 4c
Fe-THQ OPTP fit t0	0.378 ps	—	—	SI Table Exact Reported	10 · Table S4 · Table S4
Fe-THQ OPTP fit tau1	0.381 ps	—	—	SI Table Exact Reported	10 · Table S4 · Table S4
Fe-THQ OPTP long-time offset y0Marked as a best value within this paper	0.00955	—	—	SI Table Exact Reported	10 · Table S4 · Table S4
Ni-THQ OPTP fit A1	0.0409	—	—	SI Table Exact Reported	10 · Table S4 · Table S4
Ni-THQ OPTP fit tau1	0.215 ps	—	—	SI Table Exact Reported	10 · Table S4 · Table S4
Ni-THQ OPTP long-time offset y0	0.0000748	—	—	SI Table Exact Reported	10 · Table S4 · Table S4
Ni-THQ and Zn-THQ photo-induced THz difference signal threshold	less than 0.01%	—	<	Text Range	10 · OPTP spectroscopy · Figure 4a
Zn-THQ OPTP fit A1	0.00474	—	—	SI Table Exact Reported	10 · Table S4 · Table S4
Zn-THQ OPTP fit tau1	2.25 ps	—	—	SI Table Exact Reported	10 · Table S4 · Table S4
Zn-THQ OPTP long-time offset y0	0.000954	—	—	SI Table Exact Reported	10 · Table S4 · Table S4