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

6 measurement groups · 28 results

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

POMOF-functionalised perovskite film · Thin Film

GSB at 745-750 nm; normalised bleaching kinetics fitted bi-exponentially.

Geometry: films on silicon chip
Context: composite film vs pristine control
Measurement source: p006 · 2.4 Effect of POMOF on Charge Transport Dynamics · Figure 4e-i

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
fast charge-transfer time constant tau1, control	695.1 ps	—	—	Text Exact Reported	p006 · 2.4 Effect of POMOF on Charge Transport Dynamics · Figure 4i
fast charge-transfer time constant tau1, POMOF film	101.4 ps	—	—	Text Exact Reported	p006 · 2.4 Effect of POMOF on Charge Transport Dynamics · Figure 4i

POMOF reddish-brown block crystals · Single Crystal

TGA in nitrogen or air, 5 degC min-1; UV-vis spectrum of POMOF.

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
mass loss before 300 degC	4.3% of mass before 300 degC	—	—	Text Rounded Reported	p002 · 2.1 Structure and Properties of POMOF · Figure S5b
UV-vis absorption range	200-600 nm, especially ultraviolet region	—	—	Text Range	p002 · 2.1 Structure and Properties of POMOF · Figure S5a

POMOF/Pb0/I0 redox model mixture · Unknown

Pb0 (50 mg) and I0 (42 mg) in 2.5 mL DMF/DMSO (9:1 v/v), +/- POMOF (45 mg), stirred 60 min at 100 degC.

Temperature: 373
Context: model redox assay
Measurement source: p002 · 2.1 Structure and Properties of POMOF · Figure 1f-h; Figure S6

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Pb0/(Pb0 + Pb2+) ratio, control	9.0%	—	—	Text Rounded Reported	p002 · 2.1 Structure and Properties of POMOF · Figure S6a
Pb0/(Pb0 + Pb2+) ratio, POMOF	1.9%	—	—	Text Rounded Reported	p002 · 2.1 Structure and Properties of POMOF · Figure S6a
UV-vis redox response	PbIx peak at 289 nm enhanced and I0 peak at 360 nm weakened with POMOF	—	—	Text Qualitative	p002 · 2.1 Structure and Properties of POMOF · Figure 1g

POMOF-functionalised perovskite film · Thin Film

Bi-exponential TRPL fits; films with and without POMOF, before and after HTL deposition.

Context: composite film vs pristine control
Measurement source: p006 · 2.4 Effect of POMOF on Charge Transport Dynamics · Figure 4c,d; Table S4

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
TRPL tau1, Perovskite	38	—	—	SI Table Exact Reported	p021 · Table S4 · Table S4
TRPL tau1, Perovskite/HTL	92	—	—	SI Table Exact Reported	p021 · Table S4 · Table S4
TRPL tau1, Perovskite with POMOF	86	—	—	SI Table Exact Reported	p021 · Table S4 · Table S4
TRPL tau1, Perovskite with POMOF /HTL	68	—	—	SI Table Exact Reported	p021 · Table S4 · Table S4
TRPL tau2, Perovskite	631	—	—	SI Table Exact Reported	p021 · Table S4 · Table S4
TRPL tau2, Perovskite/HTL	598	—	—	SI Table Exact Reported	p021 · Table S4 · Table S4
TRPL tau2, Perovskite with POMOF	934	—	—	SI Table Exact Reported	p021 · Table S4 · Table S4
TRPL tau2, Perovskite with POMOF /HTL	466	—	—	SI Table Exact Reported	p021 · Table S4 · Table S4
average carrier lifetime, Perovskite	595	—	—	SI Table Exact Reported	p021 · Table S4 · Table S4
average carrier lifetime, Perovskite/HTL	497	—	—	SI Table Exact Reported	p021 · Table S4 · Table S4
average carrier lifetime, Perovskite with POMOF	884	—	—	SI Table Exact Reported	p021 · Table S4 · Table S4
average carrier lifetime, Perovskite with POMOF /HTL	341	—	—	SI Table Exact Reported	p021 · Table S4 · Table S4

POMOF-functionalised perovskite film · Thin Film

Control and POMOF-functionalised perovskite films compared for optical band gap, cutoff/onset energies, and calculated valence-band levels.

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Tauc optical band gap, control film	about 1.55 eV	—	—	Figure Axis Approximate	p012 · Figure S16 · Figure S16a
Tauc optical band gap, POMOF film	about 1.54 eV	—	—	Figure Axis Approximate	p012 · Figure S16 · Figure S16a
UPS cutoff energy, control film	16.94 eV	—	—	Figure Axis Approximate	p012 · Figure S16 · Figure S16b
UPS cutoff energy, POMOF film	17.19 eV	—	—	Figure Axis Approximate	p012 · Figure S16 · Figure S16b
UPS valence onset, control film	1.42 eV	—	—	Figure Axis Approximate	p012 · Figure S16 · Figure S16b
UPS valence onset, POMOF film	1.51 eV	—	—	Figure Axis Approximate	p012 · Figure S16 · Figure S16b
calculated valence-band level, control film	5.70 eV	—	—	Text Exact Reported	p007 · 2.5 Photovoltaic Performance · Figure 5c; Figure S16
calculated valence-band level, POMOF film	5.54 eV	—	—	Text Exact Reported	p007 · 2.5 Photovoltaic Performance · Figure 5c; Figure S16

POMOF Pb(II) sorbent · Powder

O 1s XPS used to identify Pb-O after Pb adsorption.

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Pb-O XPS peak after adsorption	529.9 eV assigned to Pb-O	—	—	Text Exact Reported	p009 · 2.6 Mechanism Analysis · Figure S25