DESIGNING ION SENSITIVE FIELD EFFECT TRANSISTOR (ISFET) PH SENSOR USING A COMMERCIAL FIELD EFFECT TRANSISTOR

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FARHANGFAR AMIN; SHAMSIPUR MOJTABA; AKHOND MORTEZA

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Seminar Paper

Paper Information

Seminar: IRANIAN SEMINAR OF ANALYTICAL CHEMISTRY
Year:2014 | Issue:20

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Title

DESIGNING ION SENSITIVE FIELD EFFECT TRANSISTOR (ISFET) PH SENSOR USING A COMMERCIAL FIELD EFFECT TRANSISTOR

Author(s)

FARHANGFAR AMIN | SHAMSIPUR MOJTABA | AKHOND MORTEZA | Issue Writer Certificate

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Abstract

IN THIS STUDY, FOR THE FIRST TIME, WE INTRODUCE A SIMPLE AND LOW COST PH SENSOR BASED ON A COMMERCIAL FIELD EFFECT TRANSISTOR (FET). THE TRANSISTOR WAS MECHANICALLY TREATED, ISOLATED AND USED AS AN ION SENSITIVE FIELD EFFECT TRANSISTOR (ISFET) [1] FOR PH DETECTION, AFTER ELECTRODEPOSITION OF THE SENSING MEMBRANE ON ITS SURFACE. POLYPYRROLE, AS A SUITABLE SENSING MEMBRANE, WAS ELECTRODEPOSITED ON THE OF TRANSISTOR FROM A SOLUTION CONTAINING PYRROLE MONOMER, HYDROQUINONE MONOSULFONATE [2] AS A PROPER LIGAND AND SODIUM SALICYLATE FOR AVOIDING THE SUBSTRATE OXIDATION, UNDER A TWO-STEP DEPOSITION CONDITIONS. THE PREPARED SENSOR SHOWED A NEAR-NERNSTIAN RESPONSE OF 52.3 MV PH-1 OVER A LINEAR PH RANGE OF 2.75-12.20, AN ULTRA LOW HYSTERESIS OF 0.56 MV, A VERY LOW DRIFT OF 0.14 MV H-1 AND A LOW RESPONSE TIME OF LESS THAN 8 S.

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APA: Copy

FARHANGFAR, AMIN, SHAMSIPUR, MOJTABA, & AKHOND, MORTEZA. (2014). DESIGNING ION SENSITIVE FIELD EFFECT TRANSISTOR (ISFET) PH SENSOR USING A COMMERCIAL FIELD EFFECT TRANSISTOR. IRANIAN SEMINAR OF ANALYTICAL CHEMISTRY. SID. https://sid.ir/paper/912869/en

Vancouver: Copy

FARHANGFAR AMIN, SHAMSIPUR MOJTABA, AKHOND MORTEZA. DESIGNING ION SENSITIVE FIELD EFFECT TRANSISTOR (ISFET) PH SENSOR USING A COMMERCIAL FIELD EFFECT TRANSISTOR. 2014. Available from: https://sid.ir/paper/912869/en

IEEE: Copy

AMIN FARHANGFAR, MOJTABA SHAMSIPUR, and MORTEZA AKHOND, “DESIGNING ION SENSITIVE FIELD EFFECT TRANSISTOR (ISFET) PH SENSOR USING A COMMERCIAL FIELD EFFECT TRANSISTOR,” presented at the IRANIAN SEMINAR OF ANALYTICAL CHEMISTRY. 2014, [Online]. Available: https://sid.ir/paper/912869/en

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