Electrolyte-Insulator-Semiconductor field effect device for pH detecting

Cesar, R. R.; Barros, Anerise de; Dói, I.; Diniz, J. A.; Swart, Jacobus W.

doi:10.1109/sbmicro.2014.6940127

Cited by 4 publications

(2 citation statements)

References 12 publications

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“…EIS sensors have been developed in different biosensing applications in the environmental and pharmaceutical environments [9][10][11]. Several sensing metal oxide films are used for pH sensing applications, such as IGZO, ITO, Ta 2 O 5 , MgO, Al 2 O 3 /SiO 2 , TiO 2 , CuO, and ZnO [12][13][14][15][16][17][18][19]. The flat-band voltage of the EIS device changes depending on the ionic conditions of the tested solution.…”

Section: Introductionmentioning

confidence: 99%

Highly Sensitive Magnesium-Doped ZnO Nanorod pH Sensors Based on Electrolyte–Insulator–Semiconductor (EIS) Sensors

Al-Khalqi

Hamid

Al-Hardan

et al. 2021

Sensors

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For highly sensitive pH sensing, an electrolyte insulator semiconductor (EIS) device, based on ZnO nanorod-sensing membrane layers doped with magnesium, was proposed. ZnO nanorod samples prepared via a hydrothermal process with different Mg molar ratios (0–5%) were characterized to explore the impact of magnesium content on the structural and optical characteristics and sensing performance by X-ray diffraction analysis (XRD), atomic force microscopy (AFM), and photoluminescence (PL). The results indicated that the ZnO nanorods doped with 3% Mg had a high hydrogen ion sensitivity (83.77 mV/pH), linearity (96.06%), hysteresis (3 mV), and drift (0.218 mV/h) due to the improved crystalline quality and the surface hydroxyl group role of ZnO. In addition, the detection characteristics varied with the doping concentration and were suitable for developing biomedical detection applications with different detection elements.

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Section: Introductionmentioning

confidence: 99%

Highly Sensitive Magnesium-Doped ZnO Nanorod pH Sensors Based on Electrolyte–Insulator–Semiconductor (EIS) Sensors

Al-Khalqi

Hamid

Al-Hardan

et al. 2021

Sensors

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“…In the last few decades the attention of the researchers has been resort to the electrolyte-insulatorsemiconductor (EIS), which has the same principle of operation as the ion-sensitive field effect transistors (ISFET), and its manufacturing process is simple and economic compared to the ISFET [1]. The structure and operation of EIS is similar to the MOS capacitor [2]. The chemical sensitivity mechanisms of the EIS system are related to the variation of the potential difference in the electrolyteinsulator interface because the change in the chemical composition of an analyte [3].…”

Section: Introductionmentioning

confidence: 99%

The Effect of Various ZnO Layer towards Sensing Performance as an Electrolyte-Insulator-Semiconductor pH Sensor

Al-Khalqi

Hamid

Shamsudin

et al. 2020

SSP

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Multilayers zinc oxide thin films were synthesized by the sol–gel spin coating process to fabricate sensing membranes in an electrolyte-insulator-semiconductor (EIS) sensor for pH detection. The effect of various layers (single, three and five layers) on the crystallinity, morphological and optical properties of ZnO films were investigated by XRD, FE-SEM, and Photoluminescence respectively. The ZnO thin films grown were polycrystalline with hexagonal wurtzite structure. The films were not smooth, with grains and porosity in between them, and become denser as film thickness increased. The PL spectra exhibit two main emission peaks at near band edge 360-380 nm region (strong and sharp UV radiation) and 450–600 nm region (broad blue, green, and yellow radiation). Sensitivity, linearity was measured to determine the sensing and reliability performance of fabricated devices. The result confirmed that, the sensitivity for the three samples increased with increased layer from 48.3 mV/pH to 82.58 mV/pH. Compared to single and three layers of the ZnO electrolyte-insulator-semiconductor (EIS), ZnO grown with five layers exhibits a higher sensitivity of 82.58 mV/pH in solutions from pH 2–12 and linearity of 99.015 %. This is due to the increased of ZnO thickness, which produces dense surface and a well-crystallized grain structure.

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Semiconductor isolating electrolyte device for measurement of phosphate concentration in dialysate total final

Fernandes

Ceragioli

Manera

2018

2018 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)

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Electrolyte-Insulator-Semiconductor field effect device for pH detecting

Cited by 4 publications

References 12 publications

Highly Sensitive Magnesium-Doped ZnO Nanorod pH Sensors Based on Electrolyte–Insulator–Semiconductor (EIS) Sensors

Highly Sensitive Magnesium-Doped ZnO Nanorod pH Sensors Based on Electrolyte–Insulator–Semiconductor (EIS) Sensors

The Effect of Various ZnO Layer towards Sensing Performance as an Electrolyte-Insulator-Semiconductor pH Sensor

Semiconductor isolating electrolyte device for measurement of phosphate concentration in dialysate total final

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