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ZnO and AZO Film Potentiometric pH Sensors Based on Flexible Printed Circuit Board
| Content Provider | MDPI |
|---|---|
| Author | Yang, Po-Hui Chang, Ying-Sheng Chan, Che-Tsung |
| Copyright Year | 2022 |
| Description | In this study, we deposited zinc oxide (ZnO) and aluminum-doped zinc oxide (AZO) on the electroless nickel immersion gold (ENIG) of a flexible printed circuit board (FPCB) as a potentiometric pH sensor. The sensing films of the pH sensor were fabricated by a radio frequency (RF) sputtering system and analyzed by field emission scanning electron microscope (FE-SEM) and X-ray photoelectron spectroscopy (XPS). In the pH 2 to 10 buffer solutions, it was observed that the characteristics of the pH sensor through the voltage–time (V-T) measurement system include average sensitivity and linearity, drift effect, and repeatability. According to the experimental results, the pH sensors in this study could exhibit good characteristics. |
| Starting Page | 293 |
| e-ISSN | 22279040 |
| DOI | 10.3390/chemosensors10080293 |
| Journal | Chemosensors |
| Issue Number | 8 |
| Volume Number | 10 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2022-07-26 |
| Access Restriction | Open |
| Subject Keyword | Chemosensors Zinc Oxide (zno) Aluminum-doped Zinc Oxide (azo) Flexible Printed Circuit Board (fpcb) Potentiometric Ph Sensor |
| Content Type | Text |
| Resource Type | Article |
