Electrochemistry Application — Regulating Crystallization and Lead Leakage of Perovskite Solar Cell Via Novel Polyoxometalate-Based Metal–Organic Framework

7 measurement groups · 82 results

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

IPCE/EQE raw-data spreadsheet

Photoresponse and photoelectrochemistry

POMOF-functionalised n-i-p PSC · Electrode

Text-exported wavelength vs EQE (%) points for control and POMOF devices from 299.994 to 900.002 nm.

Geometry: FTO/ETL/perovskite/HTL/Au PSCs
Context: POMOF-composite device vs control
Measurement source: Sheet1 · IPCE/EQE raw data

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
peak EQE in raw IPCE spreadsheet, control	83.955% at 639.987 nm	—	—	Table Exact Reported	Sheet1 · IPCE/EQE raw data
peak EQE in raw IPCE spreadsheet, POMOF	86.65% at 544.986 nm	—	—	Table Exact Reported	Sheet1 · IPCE/EQE raw data

J-V raw-data spreadsheet

POMOF-functionalised n-i-p PSC · Electrode

Text-exported voltage/current-density curves for POMOF and control devices.

Atmosphere: air
Geometry: FTO/ETL/perovskite/HTL/Au PSCs
Context: POMOF-composite device vs control
Measurement source: Sheet1 · J-V raw data

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
raw J-V current density near 0 V, control	24.82 mA cm-2 at 8.222e-05 V	—	—	Table Exact Reported	Sheet1 · J-V raw data
raw J-V current density near 0 V, POMOF	25.2 mA cm-2 at 3.75e-05 V	—	—	Table Exact Reported	Sheet1 · J-V raw data
raw J-V zero-current voltage, control	1.1362 V by linear interpolation	—	—	Calculated From Reported Approximate	Sheet1 · J-V raw data
raw J-V zero-current voltage, POMOF	1.1982 V by linear interpolation	—	—	Calculated From Reported Approximate	Sheet1 · J-V raw data

Pb(II) sorption kinetics and isotherms by ICP-OES

Bulk elemental and compositional analysis

POMOF Pb(II) sorbent · Powder

40 mg POMOF in 100 mL 10 ppm PbI2 for kinetics; 5 mg POMOF in 5 mL Pb(II) acetate solutions (10-1000 mg L-1) for 18 h isotherms.

Atmosphere: room temperature
Geometry: batch sorption
Context: pristine POMOF sorbent
Measurement source: p005-p006,p023 · Sorption kinetic; Sorption isotherms; Tables S7-S8 · Figure S24; Tables S7-S8

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
maximum Pb adsorption capacity rounded in main text	714.7 mg g-1	—	—	Text Rounded Reported	p009 · 2.6 Mechanism Analysis · Figure S24c; Tables S7-S8
Freundlich KF	232.75	—	—	SI Table Exact Reported	p023 · Table S7 · Table S7
Freundlich n	4.01	—	—	SI Table Exact Reported	p023 · Table S7 · Table S7
Freundlich R2	0.79	—	—	SI Table Exact Reported	p023 · Table S7 · Table S7
Langmuir KL	0.91	—	—	SI Table Exact Reported	p023 · Table S7 · Table S7
Langmuir maximum Pb adsorption capacity qm	714.68 mg g-1	—	—	SI Table Exact Reported	p023 · Table S7 · Table S7
Langmuir R2	0.88	—	—	SI Table Exact Reported	p023 · Table S7 · Table S7
pseudo-first-order k1	0.64 min-1	—	—	SI Table Exact Reported	p023 · Table S8 · Table S8
pseudo-first-order qe,cal	23.81 mg g-1	—	—	SI Table Exact Reported	p023 · Table S8 · Table S8
pseudo-first-order R2	0.98	—	—	SI Table Exact Reported	p023 · Table S8 · Table S8
pseudo-second-order k2	0.11 g mg-1 min-1	—	—	SI Table Exact Reported	p023 · Table S8 · Table S8
pseudo-second-order qe,cal	10.08 mg g-1	—	—	SI Table Exact Reported	p023 · Table S8 · Table S8
pseudo-second-order R2	0.99	—	—	SI Table Exact Reported	p023 · Table S8 · Table S8

TOF-SIMS and ICP-OES Pb leakage assay

Bulk elemental and compositional analysis

POMOF-functionalised n-i-p PSC · Electrode

Accelerated degradation under 85 degC/85% RH; contaminated water after immersing control and POMOF-functionalised PSCs analysed by ICP-OES; Figure 6f bar plot read visually.

Atmosphere: 85 degC/85% RH for degradation; water soaking for ICP-OES
Geometry: PSC stack with Au electrode
Context: POMOF-composite device vs control
Measurement source: p008-p009 · 2.6 Mechanism Analysis of Lead Leakage Prevented by POMOF · Figure 6

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Pb concentration leaked, control PSC, 15 s	about 0.4 ppm	—	—	Visual Estimate Approximate	p008 · 2.6 Mechanism Analysis · Figure 6f
Pb concentration leaked, control PSC, 1800 s	about 7.8 ppm	—	—	Visual Estimate Approximate	p008 · 2.6 Mechanism Analysis · Figure 6f
Pb concentration leaked, control PSC, 3600 s	about 11.6 ppm	—	—	Visual Estimate Approximate	p008 · 2.6 Mechanism Analysis · Figure 6f
Pb concentration leaked, control PSC, 900 s	about 7.1 ppm	—	—	Visual Estimate Approximate	p008 · 2.6 Mechanism Analysis · Figure 6f
Pb concentration leaked, POMOF PSC, 1800 s	about 2.5 ppm	—	—	Visual Estimate Approximate	p008 · 2.6 Mechanism Analysis · Figure 6f
Pb concentration leaked, POMOF PSC, 3600 s	about 3.6 ppm	—	—	Visual Estimate Approximate	p008 · 2.6 Mechanism Analysis · Figure 6f
Pb concentration leaked, POMOF PSC, 900 s	about 2.3 ppm	—	—	Visual Estimate Approximate	p008 · 2.6 Mechanism Analysis · Figure 6f
TOF-SIMS Pb migration, aged control PSC	Pb2+ signal shifted toward Au electrode layer through HTL after degradation	—	—	Text Qualitative	p009 · 2.6 Mechanism Analysis · Figure 6a,c
TOF-SIMS Pb migration, aged POMOF PSC	almost no Pb2+ ion signal appeared on Au electrode layer	—	—	Text Qualitative	p009 · 2.6 Mechanism Analysis · Figure 6b,d

J-V photovoltaic characterisation

POMOF-functionalised n-i-p PSC · Electrode

AM 1.5G illumination in air; active area 0.06 cm2; reverse/forward scans.

Atmosphere: air
Geometry: FTO/ETL/perovskite/HTL/Au
Context: POMOF-composite device vs control
Measurement source: p007 · 2.5 Photovoltaic Performance of PSCs · Figure 5d; Tables S3,S6

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
hysteresis index, Control	0.131	—	—	SI Table Exact Reported	p023 · Table S6 · Table S6
hysteresis index, Control	0.131	—	—	SI Table Exact Reported	p023 · Table S6 · Table S6
hysteresis index, POMOF	0.052	—	—	SI Table Exact Reported	p023 · Table S6 · Table S6
hysteresis index, POMOF	0.052	—	—	SI Table Exact Reported	p023 · Table S6 · Table S6
FF, Control forward scan	0.72	—	—	SI Table Exact Reported	p023 · Table S6 · Table S6
FF, Control reverse scan	0.77	—	—	SI Table Exact Reported	p023 · Table S6 · Table S6
FF, POMOF PSC 0.5 mg mL-1	0.78	—	—	SI Table Exact Reported	p021 · Table S3 · Table S3
FF, POMOF PSC 1.0 mg mL-1	0.78	—	—	SI Table Exact Reported	p021 · Table S3 · Table S3
FF, POMOF PSC 1.5 mg mL-1	0.78	—	—	SI Table Exact Reported	p021 · Table S3 · Table S3
FF, POMOF PSC 2.0 mg mL-1	0.76	—	—	SI Table Exact Reported	p021 · Table S3 · Table S3
FF, POMOF PSC 3.0 mg mL-1	0.75	—	—	SI Table Exact Reported	p021 · Table S3 · Table S3
FF, POMOF forward scan	0.76	—	—	SI Table Exact Reported	p023 · Table S6 · Table S6
FF, POMOF reverse scan	0.78	—	—	SI Table Exact Reported	p023 · Table S6 · Table S6
Jsc, Control forward scan	23.66	—	—	SI Table Exact Reported	p023 · Table S6 · Table S6
Jsc, Control reverse scan	24.78	—	—	SI Table Exact Reported	p023 · Table S6 · Table S6
Jsc, POMOF PSC 0.5 mg mL-1	25.02	—	—	SI Table Exact Reported	p021 · Table S3 · Table S3
Jsc, POMOF PSC 1.0 mg mL-1	25.04	—	—	SI Table Exact Reported	p021 · Table S3 · Table S3
Jsc, POMOF PSC 1.5 mg mL-1	25.03	—	—	SI Table Exact Reported	p021 · Table S3 · Table S3
Jsc, POMOF PSC 2.0 mg mL-1	24.95	—	—	SI Table Exact Reported	p021 · Table S3 · Table S3
Jsc, POMOF PSC 3.0 mg mL-1	24.23	—	—	SI Table Exact Reported	p021 · Table S3 · Table S3
Jsc, POMOF forward scan	24.7	—	—	SI Table Exact Reported	p023 · Table S6 · Table S6
Jsc, POMOF reverse scan	25.03	—	—	SI Table Exact Reported	p023 · Table S6 · Table S6
PCE, Control forward scan	19.13	—	—	SI Table Exact Reported	p023 · Table S6 · Table S6
PCE, Control reverse scan	21.64	—	—	SI Table Exact Reported	p023 · Table S6 · Table S6
PCE, POMOF PSC 0.5 mg mL-1	22.67	—	—	SI Table Exact Reported	p021 · Table S3 · Table S3
PCE, POMOF PSC 1.0 mg mL-1	22.86	—	—	SI Table Exact Reported	p021 · Table S3 · Table S3
PCE, POMOF PSC 1.5 mg mL-1Marked as a best value within this paper	23.3	—	—	SI Table Exact Reported	p021 · Table S3 · Table S3
PCE, POMOF PSC 2.0 mg mL-1	21.85	—	—	SI Table Exact Reported	p021 · Table S3 · Table S3
PCE, POMOF PSC 3.0 mg mL-1	20.7	—	—	SI Table Exact Reported	p021 · Table S3 · Table S3
PCE, POMOF forward scan	22.09	—	—	SI Table Exact Reported	p023 · Table S6 · Table S6
PCE, POMOF reverse scanMarked as a best value within this paper	23.3	—	—	SI Table Exact Reported	p023 · Table S6 · Table S6
Voc, Control forward scan	1.127	—	—	SI Table Exact Reported	p023 · Table S6 · Table S6
Voc, Control reverse scan	1.137	—	—	SI Table Exact Reported	p023 · Table S6 · Table S6
Voc, POMOF PSC 0.5 mg mL-1	1.151	—	—	SI Table Exact Reported	p021 · Table S3 · Table S3
Voc, POMOF PSC 1.0 mg mL-1	1.161	—	—	SI Table Exact Reported	p021 · Table S3 · Table S3
Voc, POMOF PSC 1.5 mg mL-1	1.194	—	—	SI Table Exact Reported	p021 · Table S3 · Table S3
Voc, POMOF PSC 2.0 mg mL-1	1.143	—	—	SI Table Exact Reported	p021 · Table S3 · Table S3
Voc, POMOF PSC 3.0 mg mL-1	1.136	—	—	SI Table Exact Reported	p021 · Table S3 · Table S3
Voc, POMOF forward scan	1.181	—	—	SI Table Exact Reported	p023 · Table S6 · Table S6
Voc, POMOF reverse scan	1.194	—	—	SI Table Exact Reported	p023 · Table S6 · Table S6

PCE statistics, IPCE, dark J-V and EIS

Photoresponse and photoelectrochemistry Impedance spectroscopy

POMOF-functionalised n-i-p PSC · Electrode

Statistics for 50 PSCs; IPCE integrated Jsc; dark J-V and EIS used to assess recombination.

Atmosphere: air
Geometry: FTO/ETL/perovskite/HTL/Au
Context: POMOF-composite device vs control
Measurement source: p007-p008 · 2.5 Photovoltaic Performance of PSCs · Figure 5e; Figures S17-S19

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
average PCE, control PSCs	20.97%	—	—	Text Exact Reported	p007 · 2.5 Photovoltaic Performance of PSCs · Figure 5e; Figure S17
average PCE, POMOF PSCs	22.54%	—	—	Text Exact Reported	p007 · 2.5 Photovoltaic Performance of PSCs · Figure 5e; Figure S17
average Voc, control PSCs	1.13 V	—	—	Text Exact Reported	p007 · 2.5 Photovoltaic Performance of PSCs · Figure S17
average Voc, POMOF PSCs	1.50 V	—	—	Text Uncertain	p007 · 2.5 Photovoltaic Performance of PSCs · Figure S17
dark J-V leakage/recombination	POMOF PSCs exhibit smaller dark current density than control	—	—	Text Qualitative	p007 · 2.5 Photovoltaic Performance of PSCs · Figure S18b
EIS recombination behaviour	EIS supports reduced charge recombination in POMOF PSCs	—	—	Text Qualitative	p008 · 2.5 Photovoltaic Performance of PSCs · Figure S19
integrated Jsc from IPCE, control	23.2 mA cm-2	—	—	Text Exact Reported	p007 · 2.5 Photovoltaic Performance of PSCs · Figure S18a
integrated Jsc from IPCE, POMOF	24.0 mA cm-2	—	—	Text Exact Reported	p007 · 2.5 Photovoltaic Performance of PSCs · Figure S18a

Maximum power tracking and stability tests

POMOF-functionalised n-i-p PSC · Electrode

Stabilised power output for 300 s under AM 1.5G; ageing at 30% RH/25 degC for 1600 h; thermal annealing at 85 degC in nitrogen for 1000 h.

Atmosphere: air/nitrogen
Geometry: unencapsulated PSCs
Context: POMOF-composite device vs control
Measurement source: p008 · 2.5 Photovoltaic Performance of PSCs · Figure 5f-h; Figures S20-S21

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
PCE retention after 1600 h at 30% RH/25 degC, control	loss of about 60% (retention about 40%)	—	—	Calculated From Reported Approximate	p008 · 2.5 Photovoltaic Performance of PSCs · Figure 5g; Figure S20
PCE retention after 1600 h at 30% RH/25 degC, POMOF	nearly 90%	—	—	Text Approximate	p008 · 2.5 Photovoltaic Performance of PSCs · Figure 5g; Figure S20
stabilised PCE after 300 s MPP, control	20.80%	—	—	Text Exact Reported	p008 · 2.5 Photovoltaic Performance of PSCs · Figure 5f
stabilised PCE after 300 s MPP, POMOF	22.75%	—	—	Text Exact Reported	p008 · 2.5 Photovoltaic Performance of PSCs · Figure 5f
PCE retention after 1000 h at 85 degC, control	about 60%	—	—	Text Approximate	p008 · 2.5 Photovoltaic Performance of PSCs · Figure 5h; Figure S21
PCE retention after 1000 h at 85 degC, POMOF	85%	—	—	Text Approximate	p008 · 2.5 Photovoltaic Performance of PSCs · Figure 5h; Figure S21