High-sensitivity pH sensor employing a sub-micron ruthenium oxide thin-film in conjunction with a thick reference electrode

2013 ◽  
Vol 203 ◽  
pp. 300-303 ◽  
Author(s):  
D.K. Maurya ◽  
A. Sardarinejad ◽  
K. Alameh
Keyword(s):  
Thin Film ◽  
Ph Sensor ◽  
Reference Electrode ◽  
Ruthenium Oxide ◽  
High Sensitivity ◽  
Oxide Thin Film

High Sensitivity pH Sensors based on Amorphous Indium-gallium-zinc Oxide Thin-film Transistors

2015 ◽  
Vol 135 (6) ◽  
pp. 192-198 ◽  
Author(s):  
Shinnosuke Iwamatsu ◽  
Yutaka Abe ◽  
Toru Yahagi ◽  
Seiya Kobayashi ◽  
Kazushige Takechi ◽  
...  
Keyword(s):  
Thin Film ◽  
Zinc Oxide ◽  
Thin Film Transistors ◽  
High Sensitivity ◽  
Oxide Thin Film ◽  
Indium Gallium Zinc Oxide ◽  
Ph Sensors ◽  
Zinc Oxide Thin Film ◽  
Indium Gallium

scholarly journals Titanium Nitride Thin Film Based Low-Redox-Interference Potentiometric pH Sensing Electrodes

Sensors ◽  
2020 ◽  
Vol 21 (1) ◽  
pp. 42
Author(s):  
Shimrith Paul Shylendra ◽  
Wade Lonsdale ◽  
Magdalena Wajrak ◽  
Mohammad Nur-E-Alam ◽  
Kamal Alameh
Keyword(s):  
Thin Film ◽  
Titanium Nitride ◽  
Orange Juice ◽  
Ph Sensor ◽  
Reference Electrode ◽  
Cost Effective ◽  
Ph Sensing ◽  
Ph Sensors ◽  
Potential Shift ◽  
Double Junction

In this work, a solid-state potentiometric pH sensor is designed by incorporating a thin film of Radio Frequency Magnetron Sputtered (RFMS) Titanium Nitride (TiN) working electrode and a commercial Ag|AgCl|KCl double junction reference electrode. The sensor shows a linear pH slope of −59.1 mV/pH, R2 = 0.9997, a hysteresis as low as 1.2 mV, and drift below 3.9 mV/h. In addition, the redox interference performance of TiN electrodes is compared with that of Iridium Oxide (IrO2) counterparts. Experimental results show −32 mV potential shift (E0 value) in 1 mM ascorbic acid (reducing agent) for TiN electrodes, and this is significantly lower than the −114 mV potential shift of IrO2 electrodes with sub-Nernstian sensitivity. These results are most encouraging and pave the way towards the development of miniaturized, cost-effective, and robust pH sensors for difficult matrices, such as wine and fresh orange juice.

Highly sensitive palladium oxide thin film extended gate FETs as pH sensor

2014 ◽  
Vol 205 ◽  
pp. 199-205 ◽  
Author(s):  
Atanu Das ◽  
Danny Hsu Ko ◽  
Chia-Hsin Chen ◽  
Liann-Be Chang ◽  
Chao-Sung Lai ◽  
...  
Keyword(s):  
Thin Film ◽  
Ph Sensor ◽  
Palladium Oxide ◽  
Oxide Thin Film ◽  
Highly Sensitive

Demonstration of Detecting Small pH Changes Using High-Sensitivity Amorphous InGaZnO4 Thin-Film Transistor pH Sensor System

2017 ◽  
Vol 64 (2) ◽  
pp. 638-641 ◽  
Author(s):  
Kazushige Takechi ◽  
Shinnosuke Iwamatsu ◽  
Shunsuke Konno ◽  
Toru Yahagi ◽  
Yutaka Abe ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Film Transistor ◽  
Ph Sensor ◽  
High Sensitivity ◽  
Sensor System ◽  
Ph Changes
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