Hexylthiophene based Conjugated Polymer Metal-ion Sensor

Anil, AG and Ramamurthy, PC and Subramanian, S and Sivry, Y (2018) Hexylthiophene based Conjugated Polymer Metal-ion Sensor. In: 4th IEEE International Conference on Emerging Electronics, ICEE 2018, 17-19 December 2018, Bengaluru.

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Abstract

Conjugated polymer based sensor materials are gaining attention because of their higher sensitivity, tunable selectivity, better lifetime and reusability. Higher thermal stability and resistance to photobleaching makes them potential candidates for fabrication of thin films, micro-chips and electrodes for sensors. A novel hexylthiophene based polymer has been synthesized for the sensitive detection of Fe3+ ions. The polymer solution in ethanol could detect the presence of 8 ppm of Fe3+ with a quenching efficiency of ∼ 96. The Stern-Volmer plot showed positive deviation from linearity at higher analyte concentrations due to super amplified quenching. The prospect of the polymer to function as a chemoresistive sensor is currently being investigated.

Item Type:	Conference Paper
Publication:	2018 4th IEEE International Conference on Emerging Electronics, ICEE 2018
Publisher:	Institute of Electrical and Electronics Engineers Inc.
Additional Information:	The copyright for this article belongs to the Institute of Electrical and Electronics Engineers Inc.
Keywords:	Fluorescence; Metal ions; Metals; Photobleaching; Quenching; Reusability, Analyte concentration; Based conjugated polymers; Chemoresistive sensors; Fabrication of thin films; Metal ion sensors; Quenching efficiency; Sensitive detection; Stern-Volmer plot, Conjugated polymers
Department/Centre:	Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited:	30 Jul 2022 04:50
Last Modified:	30 Jul 2022 04:50
URI:	https://eprints.iisc.ac.in/id/eprint/75080

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