Electrical Transport — High-performance field-effect transistor glucose biosensors based on bimetallic Ni/Cu metal-organic frameworks

3 measurement groups · 10 results

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

liquid-gated FET output and transfer curves

Field-effect transistor measurements

Ni/Cu-MOFs (7:1)-FET · Electrode

Measured with Keithley 4200-SCS and four-point probe station; PBS liquid gate with silver probe; output Vgs 0.1 to -0.1 V at Vds 0 to -0.2 V; transfer Vds = -0.10 V and Vgs -0.15 to 0.15 V.

Atmosphere: PBS liquid gate
Geometry: liquid-gated FET
Context: pristine mixed-metal FET compared with Ni-MOFs-FET and Cu-MOFs-FET
Measurement source: 2-3,5 · 2.5; 3.2 · Fig. S9

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
relative FET current increaseMarked as a best value within this paper	current value of Ni/Cu-MOFs (7:1)-FET increased by an order of magnitude	—	—	Text Approximate	5 · 3.2 · Fig. S9
Ids-Vds ohmic behaviourMarked as a best value within this paper	Ni/Cu-MOFs (7:1)-FET showed good ohmic characteristics and better linearity than Ni-MOFs-FET and Cu-MOFs-FET	—	—	Text Qualitative	5 · 3.2 · Fig. S9

liquid-gated FET transfer analysis

Field-effect transistor measurements

GOD-GA-Ni/Cu-MOFs (7:1)-FET · Electrode

Maximum transconductance, carrier mobility, switching ratio and threshold voltage calculated for GOD-GA-Ni/Cu-MOFs (7:1)-FET.

Atmosphere: PBS liquid gate
Geometry: liquid-gated enzyme FET
Context: functionalised target device
Measurement source: 5 · 3.2 · Fig. S10; Formula S1

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
FET channel length used for mobility calculation	50 um	—	—	Text Exact Reported	S1; S3
FET channel width used for mobility calculation	1000 um	—	—	Text Exact Reported	S1; S3
maximum transconductanceMarked as a best value within this paper	20.47 uS	—	—	Text Exact Reported	5 · 3.2 · Fig. S10
electric double-layer capacitance used for mobility calculation	25.52 uF cm^-2	—	—	Text Exact Reported	S3 · Formula S1
carrier mobilityMarked as a best value within this paper	401.05 cm2 V^-1 s^-1	—	—	Text Exact Reported	5 · 3.2 · Formula S1
current switching ratio	Ion/Ioff = 4.89	—	—	Text Exact Reported	5 · 3.2
threshold voltage	0.32 V	—	—	Text Exact Reported	5 · 3.2

pH-dependent I-Vds conductance fitting

GOD-GA-Ni/Cu-MOFs (7:1)-FET · Electrode

GOD-GA-Ni/Cu-MOFs (7:1)-FET measured at pH 5.8, 6.4, 6.8, 7.4 and 8 using 5 uL PBS solution; Vgs = -0.1 V.

Atmosphere: PBS liquid gate
Geometry: liquid-gated enzyme FET
Context: functionalised target device
Measurement source: S11 · Supporting Information · Fig. S11

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
selected glucose detection pH	pH 7.4	—	—	Text Exact Reported	5-6 · 3.3 · Fig. S11