Comparison of CeTiO3 and Ce2TiO5 Sensing Films for pH Sensors

Tung Ming Pan; Tung Yu Wu; Yen Hsiang Huang; Jim Long Her; Bih Show Lou; Sheng Han Tsai; See Tong Pang

doi:10.1109/LED.2018.2827421

Comparison of CeTiO₃ and Ce₂TiO₅ Sensing Films for pH Sensors

Tung Ming Pan^*, Tung Yu Wu, Yen Hsiang Huang, Jim Long Her, Bih Show Lou, Sheng Han Tsai, See Tong Pang

^*Corresponding author for this work

Research output: Contribution to journal › Journal Article › peer-review

2 Scopus citations

Abstract

In this letter, we compared the structural and sensing properties of CeTiO₃ and Ce₂TiO₅ sensing films for electrolyte-insulator-semiconductor (EIS) pH sensors. The structural behavior of these sensing films was characterized by Auger electron spectroscopy, atomic force microscopy, and X-ray photoelectron spectroscopy. In comparison with CeTiO₃ sensing film, the EIS sensor using a Ce₂TiO₅ sensing film exhibited better sensing performance including higher sensitivity (68.35 mV/pH), lower hysteresis voltage (0.9 mV), and smaller drift rate (0.19 mV/h), presumably suggesting this film possessing a high fraction of Ce³⁺ and a rough surface.

Original language	English
Pages (from-to)	885-888
Number of pages	4
Journal	IEEE Electron Device Letters
Volume	39
Issue number	6
DOIs	https://doi.org/10.1109/LED.2018.2827421
State	Published - 06 2018

Bibliographical note

Publisher Copyright:
© 1980-2012 IEEE.

Keywords

Ce2TiO5
CeTiO3
Electrolyte-insulator-semiconductor (EIS)
pH sensor

Access to Document

10.1109/LED.2018.2827421

Cite this

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title = "Comparison of CeTiO3 and Ce2TiO5 Sensing Films for pH Sensors",

abstract = "In this letter, we compared the structural and sensing properties of CeTiO3 and Ce2TiO5 sensing films for electrolyte-insulator-semiconductor (EIS) pH sensors. The structural behavior of these sensing films was characterized by Auger electron spectroscopy, atomic force microscopy, and X-ray photoelectron spectroscopy. In comparison with CeTiO3 sensing film, the EIS sensor using a Ce2TiO5 sensing film exhibited better sensing performance including higher sensitivity (68.35 mV/pH), lower hysteresis voltage (0.9 mV), and smaller drift rate (0.19 mV/h), presumably suggesting this film possessing a high fraction of Ce3+ and a rough surface.",

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AU - Tsai, Sheng Han

AU - Pang, See Tong

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