Micro-sized pH sensors based on patterned Pd structures using an electrolysis method

Young Tack Lee, Eunsongyi Lee, Jun Min Lee, Wooyoung Lee

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

We report a novel low-cost and simple technique to fabricate micron-scaled pH sensors using Pd patterned structures. We utilized a combination of photolithography and a lift-off technique to fabricate a V-shaped 4-probe device from a continuous Pd film. The device could detect the pH of a buffer solution by electrolysis. The hydrogen gas (H 2 ) in the solution generated during electrolysis was sensed by the Pd structure. Our results demonstrate that micron-scaled pH sensors based on V-shaped Pd structures can be used to quantitatively detect the pH of a wide pH range of buffer solutions.

Original languageEnglish
JournalCurrent Applied Physics
Volume9
Issue number4 SUPPL.
DOIs
Publication statusPublished - 2009 Jul 1

Fingerprint

pH sensors
electrolysis
Electrolysis
sensors
Buffers
Hydrogen
Photolithography
buffers
Gases
photolithography
Costs
probes
hydrogen
gases

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Physics and Astronomy(all)

Cite this

Lee, Young Tack ; Lee, Eunsongyi ; Lee, Jun Min ; Lee, Wooyoung. / Micro-sized pH sensors based on patterned Pd structures using an electrolysis method. In: Current Applied Physics. 2009 ; Vol. 9, No. 4 SUPPL.
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Micro-sized pH sensors based on patterned Pd structures using an electrolysis method. / Lee, Young Tack; Lee, Eunsongyi; Lee, Jun Min; Lee, Wooyoung.

In: Current Applied Physics, Vol. 9, No. 4 SUPPL., 01.07.2009.

Research output: Contribution to journalArticle

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