Sensing Application — Self-Powered Infrared Photodetectors with Ultra-High Speed and Detectivity Based on Amorphous Cu-Based MOF Films

6 measurement groups · 25 results

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

Annealing stability test followed by photoresponse measurement

Photoresponse and photoelectrochemistry

p-a-Cu-HHTP/n-Si self-powered photodetector · Electrode

Prepared photodetector annealed at 313-453 K for 1 h and measured after cooling; Figure 4 also shows behaviour above 453 K by axis.

Temperature: 313-453 K for text-reported stability; figure axis extends to about 500 K
Geometry: p-a-Cu-HHTP/n-Si heterojunction
Context: application device using pristine MOF active film
Measurement source: p006 · Results and Discussion · Figure 4g-i

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Maximum annealing temperature with no degradation	453 K (180 deg C) for 1 h	180 deg C	—	Text Exact Reported	p006 · Results and Discussion · Figure 4g-i
Decay time after annealing at 453 K	65 us in text; Figure 4i label reads 60 us	0.065 ms	—	Text Uncertain	p006 · Results and Discussion · Figure 4i
Rise time after annealing at 453 K	45 us	0.045 ms	—	Text Exact Reported	p006 · Results and Discussion · Figure 4i
Photocurrent drop above 453 K	Iph drops sharply above 453 K	—	—	Text Qualitative	p006 · Results and Discussion · Figure 4g

Current-voltage measurement under dark and 980 nm illumination

Electrical conductivity

p-a-Cu-HHTP/n-Si self-powered photodetector · Electrode

p-a-Cu-HHTP/n-Si photodetector under dark and 980 nm, 1000 uW cm-2 illumination.

Geometry: p-a-Cu-HHTP/n-Si heterojunction with Ag contacts
Context: application device using pristine MOF active film
Measurement source: p005 · Results and Discussion · Figure 4c

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Photocurrent to dark current ratio	7.8 x 10^3	—	—	Text Exact Reported	p005 · Results and Discussion · Figure 4c
Dark I-V rectification	significant rectification characteristics under dark conditions	—	—	Text Qualitative	p005 · Results and Discussion · Figure 4c

Photocurrent, responsivity, detectivity, and response-time measurements

Photoresponse and photoelectrochemistry

p-a-Cu-HHTP/n-Si self-powered photodetector · Electrode

Self-powered p-a-Cu-HHTP/n-Si photodetector at 0 V bias under 980 nm light and varied optical power densities.

Temperature: ambient
Geometry: effective area 6 mm2
Context: application device using pristine MOF active film
Measurement source: p005 · Results and Discussion · Figure 4b,d-f; Table 1

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Self-powered bias	0 V	—	—	Table Exact Reported	p006 · Results and Discussion · Table 1
Decay timeMarked as a best value within this paper	50 us	0.05 ms	—	Text Exact Reported	p006 · Results and Discussion · Figure 4f; Table 1
Detectivity at 1000 uW cm-2	about 5.5 x 10^11 Jones	—	—	Figure Axis Approximate	p005 · Results and Discussion · Figure 4e
Effective photodetector area	6 mm2	—	—	Text Exact Reported	p005 · Results and Discussion · Equation 2
Maximum detectivity at 100 uW cm-2Marked as a best value within this paper	1.2 x 10^12 Jones	—	—	Text Exact Reported	p005 · Results and Discussion · Figure 4e; Table 1
Maximum responsivity at 100 uW cm-2Marked as a best value within this paper	41 mA W-1	—	—	Text Exact Reported	p005 · Results and Discussion · Figure 4e; Table 1
Photocurrent range over 100-1000 uW cm-2	about 0.26 to about 0.71 uA	—	—	Figure Axis Approximate	p005 · Results and Discussion · Figure 4d
Photocurrent power-law exponent	Iph proportional to P^0.42	—	—	Text Exact Reported	p005 · Results and Discussion · Figure 4d
Responsivity at 1000 uW cm-2	about 11 mA W-1	—	—	Figure Axis Approximate	p005 · Results and Discussion · Figure 4e
Rise timeMarked as a best value within this paper	40 us	0.04 ms	—	Text Exact Reported	p006 · Results and Discussion · Figure 4f; Table 1
Photodetector wavelength	980 nm	—	—	Table Exact Reported	p006 · Results and Discussion · Table 1

Bending-cycle stability test

flexible p-a-Cu-HHTP MSM photodetector on PI · Electrode

Flexible MSM device bent 120 times around glass tubes with radii 1.5 cm and 0.75 cm.

Geometry: MSM device on PI substrate with Ag electrodes
Context: flexible application device using pristine MOF active film
Measurement source: p007 · Results and Discussion · Figure 5d

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Bending cycles tested	120 times	—	—	Text Exact Reported	p007 · Results and Discussion · Figure 5d
Normalised photoresponse after 120 bending cycles	about 0.98 Iph,bend/Iph,rest after 120 cycles	0.98 Iph,bend/Iph,rest	—	Figure Axis Approximate	p006 · Results and Discussion · Figure 5d
Large bending radius	1.5 cm	—	—	Text Exact Reported	p007 · Results and Discussion · Figure 5d
Small bending radius	0.75 cm	—	—	Text Exact Reported	p007 · Results and Discussion · Figure 5d

Current-voltage measurement under dark and 980 nm illumination

Electrical conductivity

flexible p-a-Cu-HHTP MSM photodetector on PI · Electrode

Flexible MSM p-a-Cu-HHTP photodetector measured in dark and under 980 nm illumination at 20 V bias.

Geometry: MSM device on PI substrate with Ag electrodes
Context: flexible application device using pristine MOF active film
Measurement source: p006 · Results and Discussion · Figure 5b

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
MSM I-V bias voltage	20 V	—	—	Text Exact Reported	p006 · Results and Discussion · Figure 5b
MSM contact behaviour	linear inset I-V relationship indicating good Ohmic contact	—	—	Text Qualitative	p007 · Results and Discussion · Figure 5b

Current-time switching measurement

flexible p-a-Cu-HHTP MSM photodetector on PI · Electrode

MSM PD exposed to 980 nm light at 1000 uW cm-2 with periodic on/off switching.

Geometry: MSM device on PI substrate with Ag electrodes
Context: flexible application device using pristine MOF active film
Measurement source: p007 · Results and Discussion · Figure 5c

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
MSM current switching range	about 2.97 to about 3.04 nA	—	—	Figure Axis Approximate	p006 · Results and Discussion · Figure 5c
MSM switching cycle	40 s	—	—	Text Exact Reported	p007 · Results and Discussion · Figure 5c