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Table 2 Performance comparison of developed sensors

From: Increased sensitivity of Au-Pd nanolayer on tapered optical fiber sensor for detecting aqueous Ethanol

Fibre optic coating

Time response

Sensitivity vol%

Response time

Recovery time

No coating

20 s

18 s

0.003/vol%

Palladium

17 s

12 s

0.043/vol%

Gold

19 s

9 s

0.005/vol%

Gold: Palladium 2:0.7

15 s

11 s

0.062/vol%

Gold: Palladium 2:1

13 s

6 s

0.074/vol%