Entity: Universitat Rovira i Virgili (URV)
Confidenciality: No
Education area(s): Nanociència, Materials i Processos - Tecnologia Química de Frontera
Title in different languages: Thick-Film Organic Electrochemical Transistor (OECT) Sensors For The Detection Of Hydrogen Peroxide
Abstract: Organic electrochemical transistors (OECTs) have gained great interest in the last few years as bio- and electrochemical sensors, due to their outstanding analytical performance, versatility, stability and easiness of fabrication. While thin-film OECTs have been studied extensively ever since the first device was reported more than three decades ago, thick film OECTs have not yet been explored. In this report, a simple approach for developing and testing thick-film OECT using a paper substrate is presented. The channel -cast by bar-coating the semiconducting polymer poly(3,4-ethylenedioxythiophene) doped with poly-styrene sulfonate (PEDOT:PSS) on a paper sputtered with gold- shows a thickness in the order of 10 μm, well above the conventional channels. This device is characterized by electrochemical techniques, displaying a high transconductance that exceeds 10 mS. The sensor was tested for the detection of H2O2 by building a transistor in a depletion mode where a Pt electrode was used as a gate. The outstanding analytical performance, as shown by the enhanced sensitivity and limits of detection, is presented and future applications of these type of devices are discussed.
Subject: Química
Academic year: 2018-2019
Language: Anglès
Work's public defense date: 2019-09-09
Subject areas: Chemistry
Student: Ait Yazza, Adil
Work's codirector: Blondeau, Pascal
Department: Química Analítica i Química Orgànica
Creation date in repository: 2021-03-10
TFM credits: 24
Keywords: OECT, sensor, hydrogen peroxide
Title in original language: Thick-Film Organic Electrochemical Transistor (OECT) Sensors For The Detection Of Hydrogen Peroxide
Project director: Andrade, Francisco Javier
Repositori URV