Electrochemistry Application — Facile interfacial charge transfer across hole doped cobalt-based MOFs/TiO2 nano-hybrids making MOFs light harvesting active layers in solar cells

14 measurement groups · 40 results

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

Electrochemical impedance spectroscopy (EIS)

Impedance spectroscopy

Iodine-treated Co-BDC/TiO2/FTO photoanode · Electrode

Open-circuit potential under 1 sun illumination; frequency range 10^-2 to 10^6 Hz; fitted with Z-View software.

Geometry: liquid-junction solar cell with MOF/TiO2/FTO photoanode
Context: iodine-treated Co-BDC/TiO2/FTO composite photoanode
Measurement source: p005 / SI p.S5 · Electronic Supplementary Information · Table S1

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
EIS trend across Co-BDC/Co-NDC devices	iodine-treated devices have much smaller Nyquist semicircles/R2 than pristine devices	—	—	Qualitative Qualitative	p006-p007 / article p.22674-p.22675; SI p.S5 · Results and discussion; Electronic Supplementary Information · Fig. 6B; Table S1
R1 counter-electrode/electrolyte resistance for iodine-treated FTO/TiO2/Co-BDC	2.36 ohm	—	—	SI Table Exact Reported	p005 / SI p.S5 · Electronic Supplementary Information · Table S1
R2 photoanode/electrolyte charge-transfer resistance for iodine-treated FTO/TiO2/Co-BDC	36.23 ohm	—	—	SI Table Exact Reported	p005 / SI p.S5 · Electronic Supplementary Information · Table S1
Rs total series resistance for iodine-treated FTO/TiO2/Co-BDC	7.57 ohm	—	—	SI Table Exact Reported	p005 / SI p.S5 · Electronic Supplementary Information · Table S1

Electrochemical impedance spectroscopy (EIS)

Impedance spectroscopy

Pristine Co-BDC/TiO2/FTO photoanode · Electrode

Open-circuit potential under 1 sun illumination; frequency range 10^-2 to 10^6 Hz; fitted with Z-View software.

Geometry: liquid-junction solar cell with MOF/TiO2/FTO photoanode
Context: pristine Co-BDC/TiO2/FTO composite photoanode
Measurement source: p005 / SI p.S5 · Electronic Supplementary Information · Table S1

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
R1 counter-electrode/electrolyte resistance for pristine FTO/TiO2/Co-BDC	2.12 ohm	—	—	SI Table Exact Reported	p005 / SI p.S5 · Electronic Supplementary Information · Table S1
R2 photoanode/electrolyte charge-transfer resistance for pristine FTO/TiO2/Co-BDC	218.27 ohm	—	—	SI Table Exact Reported	p005 / SI p.S5 · Electronic Supplementary Information · Table S1
Rs total series resistance for pristine FTO/TiO2/Co-BDC	7.66 ohm	—	—	SI Table Exact Reported	p005 / SI p.S5 · Electronic Supplementary Information · Table S1

Electrochemical impedance spectroscopy (EIS)

Impedance spectroscopy

Iodine-treated Co-NDC/TiO2/FTO photoanode · Electrode

Open-circuit potential under 1 sun illumination; frequency range 10^-2 to 10^6 Hz; fitted with Z-View software.

Geometry: liquid-junction solar cell with MOF/TiO2/FTO photoanode
Context: iodine-treated Co-NDC/TiO2/FTO composite photoanode
Measurement source: p005 / SI p.S5 · Electronic Supplementary Information · Table S1

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
R1 counter-electrode/electrolyte resistance for iodine-treated FTO/TiO2/Co-NDC	2.38 ohm	—	—	SI Table Exact Reported	p005 / SI p.S5 · Electronic Supplementary Information · Table S1
R2 photoanode/electrolyte charge-transfer resistance for iodine-treated FTO/TiO2/Co-NDCMarked as a best value within this paper	32.28 ohm	—	—	SI Table Exact Reported	p005 / SI p.S5 · Electronic Supplementary Information · Table S1
Rs total series resistance for iodine-treated FTO/TiO2/Co-NDC	7.66 ohm	—	—	SI Table Exact Reported	p005 / SI p.S5 · Electronic Supplementary Information · Table S1

Electrochemical impedance spectroscopy (EIS)

Impedance spectroscopy

Pristine Co-NDC/TiO2/FTO photoanode · Electrode

Open-circuit potential under 1 sun illumination; frequency range 10^-2 to 10^6 Hz; fitted with Z-View software.

Geometry: liquid-junction solar cell with MOF/TiO2/FTO photoanode
Context: pristine Co-NDC/TiO2/FTO composite photoanode
Measurement source: p005 / SI p.S5 · Electronic Supplementary Information · Table S1

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
R1 counter-electrode/electrolyte resistance for pristine FTO/TiO2/Co-NDC	2.29 ohm	—	—	SI Table Exact Reported	p005 / SI p.S5 · Electronic Supplementary Information · Table S1
R2 photoanode/electrolyte charge-transfer resistance for pristine FTO/TiO2/Co-NDC	154.81 ohm	—	—	SI Table Exact Reported	p005 / SI p.S5 · Electronic Supplementary Information · Table S1
Rs total series resistance for pristine FTO/TiO2/Co-NDC	7.58 ohm	—	—	SI Table Exact Reported	p005 / SI p.S5 · Electronic Supplementary Information · Table S1

UV/visible absorption-derived band gap and cyclic voltammetry-derived HOMO; LUMO calculated

UV-visible and optical absorption spectroscopy Voltammetry

Iodine-treated Co-NDC LBL film on amine-functionalised glass · Thin Film

Hole-doped Co-BDC and Co-NDC frameworks; supporting figures cited as Fig. S1 and Fig. S2.

Context: iodine-doped framework films
Measurement source: p004 / article p.22672 · Results and discussion · Fig. S1 and Fig. S2 cited

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Optical energy gap of hole-doped Co-BDC and Co-NDC	about 2.27 eV	—	—	Text Approximate	p004 / article p.22672 · Results and discussion · Fig. S1 cited
HOMO energy state below vacuum	-6.22 eV below vacuum	—	—	Text Exact Reported	p004 / article p.22672 · Results and discussion · Fig. S2 cited
LUMO energy state	about -3.95 eV	—	—	Calculated From Reported Approximate	p004 / article p.22672 · Results and discussion · Fig. S1-S2 cited

Incident photon-to-current efficiency (EQE/IPCE)

Photoresponse and photoelectrochemistry

Iodine-treated Co-BDC/TiO2/FTO photoanode · Electrode

Solar cell with Co-based MOF LBL/TiO2/FTO light-harvesting layer.

Geometry: liquid-junction solar cell photoanode
Context: iodine-treated Co-BDC/TiO2/FTO
Measurement source: p006 / article p.22674 · Results and discussion · Fig. 6A

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Peak EQE for iodine-treated Co-BDC/TiO2/FTO	approximately 8% peak EQE near 500 nm from Fig. 6A	—	visual estimate from y-axis and curve peak	Figure Axis Approximate	p006 / article p.22674 · Results and discussion · Fig. 6A

Incident photon-to-current efficiency (EQE/IPCE)

Photoresponse and photoelectrochemistry

Iodine-treated Co-NDC/TiO2/FTO photoanode · Electrode

Solar cell with Co-based MOF LBL/TiO2/FTO light-harvesting layer.

Geometry: liquid-junction solar cell photoanode
Context: iodine-treated Co-NDC/TiO2/FTO
Measurement source: p006 / article p.22674 · Results and discussion · Fig. 6A

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Peak EQE for iodine-treated Co-NDC/TiO2/FTOMarked as a best value within this paper	approximately 10% peak EQE near 500 nm from Fig. 6A	—	visual estimate from y-axis and curve peak	Figure Axis Approximate	p006 / article p.22674 · Results and discussion · Fig. 6A

Incident photon-to-current efficiency (EQE/IPCE)

Photoresponse and photoelectrochemistry

Pristine Co-NDC/TiO2/FTO photoanode · Electrode

EQE spectra of pristine Co-MOF/TiO2/FTO controls compared with iodine-treated devices.

Geometry: liquid-junction solar cell with MOF/TiO2/FTO photoanode
Context: pristine Co-BDC and Co-NDC MOF/TiO2/FTO controls
Measurement source: p006 / article p.22674 · Results and discussion · Fig. 6A

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
EQE for pristine Co-MOF/TiO2/FTO controls	zero external quantum efficiency	—	—	Text Exact Reported	p006 / article p.22674 · Results and discussion · Fig. 6A

Photocurrent-voltage (J-V) solar-cell measurement

Photoresponse and photoelectrochemistry Electrical conductivity

Iodine-treated Co-BDC/TiO2/FTO photoanode · Electrode

1 sun (100 mW cm^-2) white-light irradiation; I3-/I- liquid electrolyte; Pt-coated FTO counter electrode.

Geometry: thin-layer sandwich-type liquid-junction solar cell
Context: iodine-doped Co-BDC/TiO2 photoanode
Measurement source: p005 / article p.22673 · Results and discussion · Fig. 5B and Table 1

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Power conversion efficiency for iodine-treated Co-BDC/TiO2/FTO	0.96%	—	—	Table Exact Reported	p005 / article p.22673 · Results and discussion · Table 1
Fill factor for iodine-treated Co-BDC/TiO2/FTO	0.62	—	—	Table Exact Reported	p005 / article p.22673 · Results and discussion · Table 1
Jsc for iodine-treated Co-BDC/TiO2/FTO	2.13 mA cm^-2	—	—	Table Exact Reported	p005 / article p.22673 · Results and discussion · Table 1
Voc for iodine-treated Co-BDC/TiO2/FTO	0.62 V	—	—	Table Exact Reported	p005 / article p.22673 · Results and discussion · Table 1

Photocurrent-voltage (J-V) solar-cell measurement

Photoresponse and photoelectrochemistry Electrical conductivity

Pristine Co-BDC/TiO2/FTO photoanode · Electrode

1 sun (100 mW cm^-2) white-light irradiation; I3-/I- liquid electrolyte; Pt-coated FTO counter electrode.

Geometry: thin-layer sandwich-type liquid-junction solar cell
Context: pristine Co-BDC/TiO2 photoanode control
Measurement source: p005 / article p.22673 · Results and discussion · Fig. 5B and Table 1

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Power conversion efficiency for pristine Co-BDC/TiO2/FTO	0.003%	—	—	Table Exact Reported	p005 / article p.22673 · Results and discussion · Table 1
Fill factor for pristine Co-BDC/TiO2/FTO	0.29	—	—	Table Exact Reported	p005 / article p.22673 · Results and discussion · Table 1
Jsc for pristine Co-BDC/TiO2/FTO	0.04 mA cm^-2	—	—	Table Exact Reported	p005 / article p.22673 · Results and discussion · Table 1
Voc for pristine Co-BDC/TiO2/FTO	0.23 V	—	—	Table Exact Reported	p005 / article p.22673 · Results and discussion · Table 1

Photocurrent-voltage (J-V) solar-cell measurement

Photoresponse and photoelectrochemistry Electrical conductivity

Iodine-treated Co-NDC/TiO2/FTO photoanode · Electrode

1 sun (100 mW cm^-2) white-light irradiation; I3-/I- liquid electrolyte; Pt-coated FTO counter electrode.

Geometry: thin-layer sandwich-type liquid-junction solar cell
Context: iodine-doped Co-NDC/TiO2 photoanode
Measurement source: p005 / article p.22673 · Results and discussion · Fig. 5B and Table 1

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Power conversion efficiency for iodine-treated Co-NDC/TiO2/FTOMarked as a best value within this paper	1.12%	—	—	Table Exact Reported	p005 / article p.22673 · Results and discussion · Table 1
Fill factor for iodine-treated Co-NDC/TiO2/FTOMarked as a best value within this paper	0.63	—	—	Table Exact Reported	p005 / article p.22673 · Results and discussion · Table 1
Jsc for iodine-treated Co-NDC/TiO2/FTOMarked as a best value within this paper	2.56 mA cm^-2	—	—	Table Exact Reported	p005 / article p.22673 · Results and discussion · Table 1
Voc for iodine-treated Co-NDC/TiO2/FTOMarked as a best value within this paper	0.63 V	—	—	Table Exact Reported	p005 / article p.22673 · Results and discussion · Table 1

Photocurrent-voltage (J-V) solar-cell measurement

Photoresponse and photoelectrochemistry Electrical conductivity

Pristine Co-NDC/TiO2/FTO photoanode · Electrode

1 sun (100 mW cm^-2) white-light irradiation; I3-/I- liquid electrolyte; Pt-coated FTO counter electrode.

Geometry: thin-layer sandwich-type liquid-junction solar cell
Context: pristine Co-NDC/TiO2 photoanode control
Measurement source: p005 / article p.22673 · Results and discussion · Fig. 5B and Table 1

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Power conversion efficiency for pristine Co-NDC/TiO2/FTO	0.003%	—	—	Table Exact Reported	p005 / article p.22673 · Results and discussion · Table 1
Fill factor for pristine Co-NDC/TiO2/FTO	0.29	—	—	Table Exact Reported	p005 / article p.22673 · Results and discussion · Table 1
Jsc for pristine Co-NDC/TiO2/FTO	0.04 mA cm^-2	—	—	Table Exact Reported	p005 / article p.22673 · Results and discussion · Table 1
Voc for pristine Co-NDC/TiO2/FTO	0.24 V	—	—	Table Exact Reported	p005 / article p.22673 · Results and discussion · Table 1

Photovoltaic stability tracking under operating conditions

Iodine-treated Co-BDC/TiO2/FTO photoanode · Electrode

Photovoltaic parameters tracked over about 64 h for I2-treated Co-MOF/TiO2/FTO devices.

Geometry: liquid-junction solar cell with MOF/TiO2/FTO photoanode
Context: iodine-treated Co-BDC/TiO2/FTO stability
Measurement source: p004 / SI p.S4 · Electronic Supplementary Information · Figure S4

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Co-BDC I2-treated device efficiency after about 64 h	approximately 0.66% at 64 h	—	—	Figure Axis Approximate	p004 / SI p.S4 · Electronic Supplementary Information · Figure S4
Co-BDC I2-treated device Jsc after about 64 h	approximately 1.7 mA cm^-2 at 64 h	—	—	Figure Axis Approximate	p004 / SI p.S4 · Electronic Supplementary Information · Figure S4

Photovoltaic stability tracking under operating conditions

Iodine-treated Co-NDC/TiO2/FTO photoanode · Electrode

Photovoltaic parameters tracked over about 64 h for I2-treated Co-MOF/TiO2/FTO devices.

Geometry: liquid-junction solar cell with MOF/TiO2/FTO photoanode
Context: iodine-treated Co-NDC/TiO2/FTO stability
Measurement source: p004 / SI p.S4 · Electronic Supplementary Information · Figure S4

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Co-NDC I2-treated device efficiency after about 64 h	approximately 0.60% at 64 h	—	—	Figure Axis Approximate	p004 / SI p.S4 · Electronic Supplementary Information · Figure S4
Co-NDC I2-treated device Jsc after about 64 h	approximately 2.1 mA cm^-2 at 64 h	—	—	Figure Axis Approximate	p004 / SI p.S4 · Electronic Supplementary Information · Figure S4
Device stability	devices are fairly stable under the given operating conditions	—	—	Text Qualitative	p007 / article p.22675 · Results and discussion · Fig. S4 cited