Sensing Application — Photoactivated conductive MOF thin film arrays on micro-LEDs for chemiresistive gas sensing

5 measurement groups · 28 results

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

CNN-based e-nose classification and concentration regression

CuHHTP-5C on micro-LED platform · Electrode

Four-sensor array; EtOH 50/100/200 ppm, TMA 50/100/200 ppm, NH3 10/20/50 ppm, NO2 1/2/5 ppm; sampling rate 1 s; 4 x 60 s sliding window; PyTorch CNN.

Temperature: room temperature
Atmosphere: target gases in dry air
Geometry: four uLED-cMOF sensor array
Context: application array containing pristine and overlayer cMOF devices
Measurement source: 7 · Deep learning-based cMOF e-nose system · Fig. 6

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Average gas classification accuracyMarked as a best value within this paper	99.8%	—	—	Text Exact Reported	7 · Deep learning-based cMOF e-nose system · Fig. 6c
CNN gas prediction latency	within 2 min, even considering the 60-s sliding time window	120 s	upper bound	Text Range	7 · Deep learning-based cMOF e-nose system · Fig. 6
Mean absolute error for concentration predictionMarked as a best value within this paper	7.94%	—	—	Text Exact Reported	7 · Deep learning-based cMOF e-nose system · Fig. 6d
TMA 50 ppm concentration prediction MAE	22.5%	—	—	SI Table Exact Reported	36 · Supplementary Table 2 · Supplementary Table 2

Chemiresistive gas sensing under dark condition

CuHHTP-5C · Thin Film

Sensors stabilised in air; analyte gas injected for 30 min at room temperature under dark condition; response S = (Rg - Ra)/Ra.

Temperature: room temperature
Atmosphere: dry air/analyte gases
Geometry: Au interdigitated electrode non-emissive sensor
Context: pristine CuHHTP-xC optimisation series
Measurement source: 4 · Results · Fig. 2d

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
CuHHTP-15C response to 100 ppm EtOH	22.204453769356654 +/- 0.21195308988731243%	—	SD 0.21195308988731243%	SI Table Exact Reported	sheet Figure 2d · Source data · Figure 2d
CuHHTP-15C response to 5 ppm NH3	4.906756526244988 +/- 0.20126833228625643%	—	SD 0.20126833228625643%	SI Table Exact Reported	sheet Figure 2d · Source data · Figure 2d
CuHHTP-15C response to 5 ppm NO2	2.9183031516940794 +/- 0.6854233220383124%	—	SD 0.6854233220383124%	SI Table Exact Reported	sheet Figure 2d · Source data · Figure 2d
CuHHTP-1C response to 100 ppm EtOH	12.324421948520637 +/- 2.051386576017643%	—	SD 2.051386576017643%	SI Table Exact Reported	sheet Figure 2d · Source data · Figure 2d
CuHHTP-1C response to 5 ppm NH3Marked as a best value within this paper	35.958142423085604 +/- 4.855539233105737%	—	SD 4.855539233105737%	SI Table Exact Reported	sheet Figure 2d · Source data · Figure 2d
CuHHTP-1C response to 5 ppm NO2Marked as a best value within this paper	-70.35634363186608 +/- 4.008437636462425% (negative p-type response; magnitude 70.36%)	—	SD 4.008437636462425%	SI Table Exact Reported	sheet Figure 2d · Source data · Figure 2d
CuHHTP-5C response to 100 ppm EtOH	23.11215037692793 +/- 1.2362096278990853%	—	SD 1.2362096278990853%	SI Table Exact Reported	sheet Figure 2d · Source data · Figure 2d
CuHHTP-5C response to 5 ppm NH3	12.320502415014197 +/- 0.49048277183744865%	—	SD 0.49048277183744865%	SI Table Exact Reported	sheet Figure 2d · Source data · Figure 2d
CuHHTP-5C response to 5 ppm NO2	-38.099483534997724 +/- 3.3218129623524226%	—	SD 3.3218129623524226%	SI Table Exact Reported	sheet Figure 2d · Source data · Figure 2d
CuHHTP-5C response to 100 ppm TMA	7.190441020053655 +/- 0.0850245382947383%	—	SD 0.0850245382947383%	SI Table Exact Reported	sheet Figure 2d · Source data · Figure 2d

NH3 chemiresistive concentration series

CuHHTP-1C · Thin Film

CuHHTP-xC sensors exposed to NH3 concentrations from 5 to 100 ppm at room temperature.

Temperature: room temperature
Atmosphere: NH3 in dry air
Geometry: Au interdigitated electrode non-emissive sensor
Context: pristine CuHHTP-xC optimisation series
Measurement source: 4 · Results · Fig. 2h

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
CuHHTP-1C response to 100 ppm NH3Marked as a best value within this paper	457.11481 +/- 37.2072%	—	STDEV 37.2072%	SI Table Exact Reported	sheet Figure 2h · Source data · Figure 2h
CuHHTP-3C response to 100 ppm NH3	349.61728 +/- 31.33031%	—	STDEV 31.33031%	SI Table Exact Reported	sheet Figure 2h · Source data · Figure 2h

Chemiresistive gas sensing of M3HHTP2 overlayer/CuHHTP-5C films

CoHHTP-7C/CuHHTP-5C · Thin Film

MHHTP-yC/CuHHTP-5C (M = Ni, Co; y = 1, 3, 5, 7) tested for EtOH, TMA, NH3 and NO2 under dark conditions before gas injection for 30 min.

Temperature: room temperature
Atmosphere: dry air/analyte gases
Geometry: Au interdigitated electrode non-emissive sensor
Context: composite cMOF-on-cMOF overlayer films compared with CuHHTP-5C
Measurement source: 5 · Results · Fig. 3b

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
CoHHTP-7C/CuHHTP-5C response to 100 ppm TMAMarked as a best value within this paper	12.502746075070922 +/- 0.08797412623033302%	—	SD 0.08797412623033302%	SI Table Exact Reported	sheet Figure 3b · Source data · Figure 3b
CoHHTP-7C/CuHHTP-5C TMA response improvement over CuHHTP-5CMarked as a best value within this paper	73.9% higher than CuHHTP-5C	—	—	Text Rounded Reported	5 · Results · Fig. 3b
NiHHTP-5C/CuHHTP-5C response to 100 ppm NO2Marked as a best value within this paper	-58.70533015175721 +/- 8.92308773095676%	—	SD 8.92308773095676%	SI Table Exact Reported	sheet Figure 3b · Source data · Figure 3b

Photoactivated chemiresistive gas sensing on uLED platform

CuHHTP-5C on micro-LED platform · Electrode

Dark/off, UV L1 66.1 uW, blue L1 63.2 uW, blue L2 260.4 uW, blue L3 864.6 uW; dry target gases at 0% RH.

Temperature: room temperature
Atmosphere: dry target gases in PC enclosure
Geometry: uLED platform with Au IDE; cMOF-light source distance 1 um; sensor bias 1 V
Context: uLED-integrated cMOF device
Measurement source: 6 · Integration of cMOFs and uLP · Fig. 5e

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Blue uLED L1 power	63.2 uW	—	—	Caption Exact Reported	6 · Figure caption · Fig. 5f
Blue uLED L2 power	260.4 uW	—	—	Caption Exact Reported	6 · Figure caption · Fig. 5f
Blue uLED L3 power	864.6 uW	—	—	Caption Exact Reported	6 · Figure caption · Fig. 5f
Total power consumption of four-sensor arrayMarked as a best value within this paper	587 uW	—	—	Text Exact Reported	7 · Results · Fig. 5e
Optimised sensor 1 response to 100 ppm EtOHMarked as a best value within this paper	17.3% for CuHHTP-15C under UV L1	—	—	Text Rounded Reported	7 · Results · Fig. 5e
Optimised sensor 3 response to 50 ppm NH3Marked as a best value within this paper	44.0% for CuHHTP-5C with uLED off/dark	—	—	Text Rounded Reported	7 · Results · Fig. 5e
Optimised sensor 4 response to 5 ppm NO2Marked as a best value within this paper	57.9% for CuHHTP-5C under blue L2	—	—	Text Rounded Reported	7 · Results · Fig. 5e
Optimised sensor 2 response to 100 ppm TMAMarked as a best value within this paper	11.0% for CoHHTP-7C/CuHHTP-5C under blue L2	—	—	Text Rounded Reported	7 · Results · Fig. 5e
UV uLED L1 power	66.1 uW	—	—	Caption Exact Reported	6 · Figure caption · Fig. 5f