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Table 1 Summary of the deposition conditions and electrical characteristics of the samples prepared on methanol-treated substrates

From: Hydrogen sensors based on electrophoretically deposited Pd nanoparticles onto InP

Sample

Time (h)

Voltage (V)

R at 1.5 V

ϕ b (eV)

S at 0.1%H2

InP-Pd-27

0.5

100

1.8E7

0.93

5.0E4

InP-Pd-21

1

100

4.8E7

0.95

4.8E5

InP-Pd-22

2

100

0.7E7

0.88

1.6E4

InP-Pd-09

18

100

1.0E4

0.74

4.9E2

  1. R is the rectification ratio, ϕ b is the Schottky barrier height, and S is the sensing response

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