Electrical Transport — Metal-Organic Framework-Based Tribovoltaic Textile for Human Body Signal Monitoring

13 measurement groups · 45 results

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

Tribovoltaic output comparison for Cu-BHT grown on alternative fabric substrates

Cu-BHT grown on knitted cotton, cotton-Lycra blend, and linen · Thin Film

Knitted 100% cotton, 97% cotton + 3% Lycra blend, and linen fabrics modified with Cu-BHT and paired with Al fabric

Geometry: Cu-BHT based TVT devices on alternative fabrics
Context: substrate-generalisation composite textile devices
Measurement source: p010 · Supplementary Fig. S14 · Figure S14

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Knitted 100% cotton Cu-BHT TVT voltage amplitude	about 0.40-0.45 V	—	visual estimate about 0.40-0.45 V	Figure Axis Approximate	p010 · Supplementary Fig. S14 · Figure S14g
Linen Cu-BHT TVT voltage amplitude	about 0.40-0.43 V	—	visual estimate about 0.40-0.43 V	Figure Axis Approximate	p010 · Supplementary Fig. S14 · Figure S14i
97% cotton + 3% Lycra Cu-BHT TVT voltage amplitude	about 0.40-0.45 V	—	visual estimate about 0.40-0.45 V	Figure Axis Approximate	p010 · Supplementary Fig. S14 · Figure S14h
Alternative fabric substrates give similar outputs	similar output values for knitted cotton, cotton-Lycra blend, and linen Cu-BHT TVTs	—	—	Text Qualitative	p005 · Results and Discussion · Figure S14

Electrical conductivity after drying; instrument/geometry not specified

Electrical conductivity

Cu-BHT cotton · Thin Film

Cu-BHT cotton after modification and drying

Geometry: textile sample
Context: composite conductive-MOF textile
Measurement source: p002 · Results and Discussion

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Cu-BHT cotton electrical conductivity after dryingMarked as a best value within this paper	181.8 S cm-1	—	—	Text Exact Reported	p002 · Results and Discussion

Multimeter resistance measurement

Cu2+-rich cotton · Unknown

Cu-rich cotton prepared at different Cu2+ concentrations before/after BHT treatment colour series; Table S1 reports resistance of Cu-rich cotton

Geometry: textile sample
Context: Cu-rich cotton intermediate / precursor to Cu-BHT cotton
Measurement source: p010 · Supplementary Table S1 · Table S1

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Resistance at 0.1% Cu2+	OL	—	—	SI Table Qualitative	p010 · Supplementary Table S1 · Table S1
Resistance at 0.5% Cu2+	OL	—	—	SI Table Qualitative	p010 · Supplementary Table S1 · Table S1
Resistance at 1% Cu2+	OL	—	—	SI Table Qualitative	p010 · Supplementary Table S1 · Table S1
Resistance at 20% Cu2+	~17 kOhm	17000 Ohm	~	SI Table Approximate	p010 · Supplementary Table S1 · Table S1
Resistance at 3% Cu2+	~58 kOhm	58000 Ohm	~	SI Table Approximate	p010 · Supplementary Table S1 · Table S1
Resistance at 50% Cu2+	~9 kOhm	9000 Ohm	~	SI Table Approximate	p010 · Supplementary Table S1 · Table S1
Resistance at 5% Cu2+	~27 kOhm	27000 Ohm	~	SI Table Approximate	p010 · Supplementary Table S1 · Table S1
Resistance at 60% Cu2+	~3 kOhm	3000 Ohm	~	SI Table Approximate	p010 · Supplementary Table S1 · Table S1
Resistance at 70% Cu2+Marked as a best value within this paper	~2.5 kOhm	2500 Ohm	~	SI Table Approximate	p010 · Supplementary Table S1 · Table S1

Tribovoltaic voltage versus CuCl2 precursor concentration

Cu-BHT TVT · Electrode

4 N and 1 Hz sliding; BHT solution concentration held constant; CuCl2 concentration varied

Geometry: Cu-BHT TVT
Context: fabrication parameter study
Measurement source: p005-p006 · Results and Discussion · Figure 3a / Figure S6

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Voltage near selected 70 wt.% CuCl2 concentration	about 0.40-0.42 V at 70 wt.% CuCl2	—	visual estimate about 0.40-0.42 V	Figure Axis Approximate	p006 · Figure 3 · Figure 3a
Voltage at 75% CuCl2 in SI concentration seriesMarked as a best value within this paper	about 0.45 V at 75% CuCl2	—	visual estimate about 0.44-0.47 V	Figure Axis Approximate	p006 · Supplementary Fig. S6 · Figure S6
Selected CuCl2 concentration for further testsMarked as a best value within this paper	70 wt.% CuCl2	—	—	Text Exact Reported	p005 · Results and Discussion · Figure 3a

Output voltage/current versus applied sliding force

Cu-BHT TVT · Electrode

0.5 Hz and 25 mm/s; force varied from 2 to 10 N

Geometry: Cu-BHT TVT
Context: mechanical parameter study
Measurement source: p005-p006 · Results and Discussion · Figure 3b / Figure S7

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Current at 10 N forceMarked as a best value within this paper	0.97 uA at 10 N	—	—	Text Exact Reported	p005 · Results and Discussion · Figure 3b
Current at 2 N force	0.05 uA at 2 N	—	—	Text Exact Reported	p005 · Results and Discussion · Figure 3b
Voltage during force variation	remained stable at 0.6 V	—	—	Text Exact Reported	p005 · Results and Discussion · Figure 3b
Optimised TVT current outputMarked as a best value within this paper	approximately 1 uA	—	—	Text Approximate	p008 · Conclusion

Output voltage/current versus sliding frequency

Cu-BHT TVT · Electrode

4 N and 50 mm/s; frequency varied from 0.5 to 3 Hz

Geometry: Cu-BHT TVT
Context: mechanical parameter study
Measurement source: SI text · Supplementary Fig. S8 caption · Figure S8 / Figure 3c

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Approximate current at 3 HzMarked as a best value within this paper	about 0.55-0.60 uA at 3 Hz	—	visual estimate about 0.55-0.60 uA	Figure Axis Approximate	p007 · Supplementary Fig. S8 · Figure S8

Long-term friction, storage, and bending output tests

Cu-BHT TVT · Electrode

Continuous sliding at 4 N and 2 Hz; 3000 continuous sliding cycles; 30 day and 3 month storage; 3000 bending cycles

Geometry: Cu-BHT TVT
Context: mechanical and storage durability
Measurement source: p005-p006 · Results and Discussion · Figure 3f-h; Figures S3, S11, S12

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Bending cycles tested	3000 bending cycles	—	—	Text Exact Reported	p005 · Results and Discussion · Figure 3h; Figure S12
Continuous sliding cycles tested	3000 continuous sliding cycles	—	—	Caption Exact Reported	p007 · Figure caption · Figure 3f
SEM cyclic friction cycles checked	10000 cycles	—	—	Text Exact Reported	p005 · Results and Discussion · Figure S3
Initial voltage in long-term friction test	0.6 V	—	—	Text Exact Reported	p005 · Results and Discussion · Figure 3f
Stable voltage after initial friction period	0.45 V	—	—	Text Exact Reported	p005 · Results and Discussion · Figure 3f
Current after 30 days storage	approximately 0.1 uA	—	—	Text Approximate	p005 · Results and Discussion · Figure 3g; Figure S11

Output voltage under controlled humidity

Cu-BHT TVT · Electrode

38% local room humidity compared with 70% humidity generated by water mist in a closed chamber

Atmosphere: 38% RH and 70% RH
Geometry: Cu-BHT TVT
Context: environmental parameter study
Measurement source: p005 · Results and Discussion · Figure S13

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Voltage at 38% humidity	0.55 V at 38% humidity	—	—	Text Exact Reported	p005 · Results and Discussion · Figure S13
Voltage at 70% humidity	0.45 V at 70% humidity	—	—	Text Exact Reported	p005 · Results and Discussion · Figure S13

Current-voltage sweep using potentiostat in two-electrode configuration

Electrical conductivity

Cu-BHT TVT · Electrode

Cu-BHT cotton connected to working electrode and Al fabric to ground; voltage swept from -2 V to +2 V

Geometry: Al fabric / Cu-BHT cotton junction
Context: composite textile Schottky junction
Measurement source: SI text · Experimental Section/Methods - Characterization

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Approximate forward current at +2 V	about 3.3 mA at +2 V	—	—	Figure Axis Approximate	p004 · Figure 2 · Figure 2b
Schottky junction behaviour	typical Schottky junction behavior	—	—	Text Qualitative	p002 · Results and Discussion · Figure 2b
Al work function used for Schottky interpretation	4.28 eV	—	—	Text Exact Reported	p002 · Results and Discussion
Cu-BHT work function used for Schottky interpretation	4.94 eV	—	—	Text Exact Reported	p002 · Results and Discussion

Output current, voltage, and power density versus external load resistance

Cu-BHT TVT · Electrode

External load resistance sweep; Cu-BHT TVT device

Geometry: Cu-BHT TVT with external load
Context: power-generation application
Measurement source: p005-p007 · Results and Discussion / Figure caption · Figure 4a

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Load-resistance threshold for nearly constant current	nearly constant at load resistances <10 kOhm	10000 Ohm threshold	—	Text Approximate	p005 · Results and Discussion · Figure 4a
Load resistance at maximum power densityMarked as a best value within this paper	300 kOhm	300000 Ohm	—	Text Exact Reported	p005 · Results and Discussion · Figure 4a
Maximum output power densityMarked as a best value within this paper	0.287 mW m-2 at 300 kOhm load resistance	—	—	Text Exact Reported	p005 · Results and Discussion · Figure 4a

Tribovoltaic output measured by oscilloscope and low-noise current preamplifier

Cu-BHT TVT · Electrode

Forward/backward sliding with discontinuous cycles or continuous cycles; continuous example at 1.5 Hz and 4 N

Geometry: 9 cm2 slider area
Context: composite textile device
Measurement source: p004 · Figure caption / Results and Discussion · Figure 2f-g

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Discontinuous sliding current peaks	about 0.15-0.18 uA	—	visual range about 0.15-0.18 uA	Figure Axis Approximate	p004 · Figure 2 · Figure 2f
Discontinuous sliding voltage peaks	about 0.45-0.55 V	—	visual range about 0.45-0.55 V	Figure Axis Approximate	p004 · Figure 2 · Figure 2f
Continuous sliding current amplitude	about 0.35-0.40 uA under 1.5 Hz, 4 N continuous sliding	—	visual range about 0.35-0.40 uA	Figure Axis Approximate	p004 · Figure 2 · Figure 2g
Continuous sliding voltage amplitudeMarked as a best value within this paper	about 0.9 V under 1.5 Hz, 4 N continuous sliding	—	—	Figure Axis Approximate	p004 · Results and Discussion · Figure 2g
Optimised TVT voltage outputMarked as a best value within this paper	approximately 0.9 V	—	—	Text Approximate	p008 · Conclusion

Output voltage/current versus relative sliding velocity

Cu-BHT TVT · Electrode

4 N and 0.5 Hz; velocity varied from about 5 to 25 mm/s

Geometry: Cu-BHT TVT
Context: mechanical parameter study
Measurement source: SI text · Supplementary Fig. S9 caption · Figure S9 / Figure 3d

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Approximate current at 25 mm/sMarked as a best value within this paper	about 0.50-0.55 uA at 25 mm/s	—	visual estimate about 0.50-0.55 uA	Figure Axis Approximate	p007 · Supplementary Fig. S9 · Figure S9

Output after repeated washing cycles

Cu-BHT TVT · Electrode

Washed in 100 mL DI water and 1 mL laundry detergent at 30 C for 30 min, then air dried; voltage tested at 4 N and 2 Hz

Temperature: 303
Atmosphere: air drying
Geometry: Cu-BHT TVT
Context: durability test
Measurement source: SI text · Experimental Section/Methods - Characterization

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Number of wash cycles tested	20 washing cycles	—	—	Text Exact Reported	p005 · Results and Discussion · Figure 3e
Voltage after 20 washing cycles	about 0.55-0.60 V after 20 washes	—	visual estimate about 0.55-0.60 V	Figure Axis Approximate	p006 · Figure 3 · Figure 3e