Electrochemistry Application — Electrochromism in Isoreticular Metal-Organic Framework Thin Films with Record High Coloration Efficiency

6 measurement groups · 22 results

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

cyclic voltammetry in three-electrode cell

Voltammetry

Zn-NDI@FTO thin film · Thin Film

MOF thin film working electrode; glassy carbon counter; non-aqueous Ag/Ag+ reference (10 mM AgPF6 in acetonitrile); 0.5 M KPF6 in dry DMF; argon bubbled 15 min; potentials vs Fc+/0

Atmosphere: argon-saturated electrolyte and argon-purged headspace
Geometry: FTO-supported MOF thin film working electrode
Context: pristine_framework thin film on FTO
Measurement source: 15 · Cyclic Voltammetry of MOF Thin Film · Table S1

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
formal redox potential E1/2 [XDI]0/radical anion	-0.97	—	—	SI Table Exact Reported	15 · Electrochemistry · Table S1
formal redox potential E1/2 [XDI]radical anion/dianion	-1.34	—	—	SI Table Exact Reported	15 · Electrochemistry · Table S1

cyclic voltammetry in three-electrode cell

Voltammetry

Zn-PDI@FTO thin film · Thin Film

MOF thin film working electrode; glassy carbon counter; non-aqueous Ag/Ag+ reference (10 mM AgPF6 in acetonitrile); 0.5 M KPF6 in dry DMF; argon bubbled 15 min; potentials vs Fc+/0

Atmosphere: argon-saturated electrolyte and argon-purged headspace
Geometry: FTO-supported MOF thin film working electrode
Context: pristine_framework thin film on FTO
Measurement source: 15 · Cyclic Voltammetry of MOF Thin Film · Table S1

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
formal redox potential E1/2 [XDI]0/radical anion	-0.67	—	—	SI Table Exact Reported	15 · Electrochemistry · Table S1
formal redox potential E1/2 [XDI]radical anion/dianion	-0.82	—	—	SI Table Exact Reported	15 · Electrochemistry · Table S1

cyclic voltammetry in three-electrode cell

Voltammetry

Zn-PMDI@FTO thin film · Thin Film

MOF thin film working electrode; glassy carbon counter; non-aqueous Ag/Ag+ reference (10 mM AgPF6 in acetonitrile); 0.5 M KPF6 in dry DMF; argon bubbled 15 min; potentials vs Fc+/0

Atmosphere: argon-saturated electrolyte and argon-purged headspace
Geometry: FTO-supported MOF thin film working electrode
Context: pristine_framework thin film on FTO
Measurement source: 15 · Cyclic Voltammetry of MOF Thin Film · Table S1

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
formal redox potential E1/2 [XDI]0/radical anion	-1.17	—	—	SI Table Exact Reported	15 · Electrochemistry · Table S1
formal redox potential E1/2 [XDI]radical anion/dianion	-1.72	—	—	SI Table Exact Reported	15 · Electrochemistry · Table S1

electrochromic performance by spectroelectrochemistry/chronoamperometry

Chronoamperometry

Zn-NDI@FTO thin film · Thin Film

Colouration efficiency from linear DeltaOD versus charge density; optical contrast from bleached/coloured UV-vis transmittance; switching and cycling stability under potential cycling

Atmosphere: electrochemical conditions as above
Geometry: FTO-supported MOF thin film electrochromic electrode
Context: pristine_framework thin film on FTO
Measurement source: 23-27 · Electrochromic performances · Table S3

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
colouration efficiency	610 +- 31 cm2 C-1 at 472 nm	—	+- 31	Text Exact Reported	6 · Electrochromic Performances · Figure 5/Figure S29/Table S3
maximum optical contrast DeltaTMarked as a best value within this paper	97.1%	—	—	SI Table Exact Reported	27 · Electrochromic performances · Table S3
electrochromic cycling retention	50 cycles (96% retained)	—	—	SI Table Exact Reported	27 · Electrochromic performances · Table S3
absorbance drift over 50 cycles	<4% over 50 cycles	—	—	Caption Exact Reported	26 · Spectroelectrochemistry stability test · Figure S34
bleaching time	3.7 s	—	—	Caption Exact Reported	25 · Switching time · Figure S32
colouration time	4 s	—	—	Caption Exact Reported	25 · Switching time · Figure S32

electrochromic performance by spectroelectrochemistry/chronoamperometry

Chronoamperometry

Zn-PDI@FTO thin film · Thin Film

Colouration efficiency from linear DeltaOD versus charge density; optical contrast from bleached/coloured UV-vis transmittance; switching and cycling stability under potential cycling

Atmosphere: electrochemical conditions as above
Geometry: FTO-supported MOF thin film electrochromic electrode
Context: pristine_framework thin film on FTO
Measurement source: 23-27 · Electrochromic performances · Table S3

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
colouration efficiencyMarked as a best value within this paper	941 +- 35 cm2 C-1 at 746 nm	—	+- 35	Text Exact Reported	6 · Electrochromic Performances · Figure 5/Figure S29/Table S3
maximum optical contrast DeltaT	96.4%	—	—	Text Exact Reported	7 · Conclusions · Figure 5/Table S3
electrochromic cycling retention	150 cycles (98% retained)	—	—	SI Table Exact Reported	27 · Electrochromic performances · Table S3
absorbance drift over 100 cycles	<1% over 100 cycles	—	—	Caption Exact Reported	26 · Spectroelectrochemistry stability test · Figure S33
bleaching time	1.6 s	—	—	Caption Exact Reported	6 · Electrochromic Performances · Figure 5c
colouration time	2.6 s	—	—	Caption Exact Reported	6 · Electrochromic Performances · Figure 5c

electrochromic performance by spectroelectrochemistry/chronoamperometry

Chronoamperometry

Zn-PMDI@FTO thin film · Thin Film

Colouration efficiency from linear DeltaOD versus charge density; optical contrast from bleached/coloured UV-vis transmittance; switching and cycling stability under potential cycling

Atmosphere: electrochemical conditions as above
Geometry: FTO-supported MOF thin film electrochromic electrode
Context: pristine_framework thin film on FTO
Measurement source: 23-27 · Electrochromic performances · Table S3

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
colouration efficiency	753 +- 46 cm2 C-1 at 714 nm	—	+- 46	SI Table Exact Reported	27 · Electrochromic performances · Figure 5/Figure S29/Table S3
maximum optical contrast DeltaT	89.5%	—	—	SI Table Exact Reported	27 · Electrochromic performances · Table S3
qualitative cycling stability	comparatively least stable; some delamination upon excessive cycling	—	—	Text Qualitative	7 · Electrochromic Performances · Figures S12-S17
switching time	N.A.	—	—	SI Table Qualitative	27 · Electrochromic performances · Table S3