Improving the selectivity to polar vapors of OFET-based sensors by using the transfer characteristics hysteresis response
详细信息 查看全文
- 作者：Peter Lienerth <sup>Peter.lienerth@horiba.com" class="auth_mail" title="E-mail the corresponding authorsup>Author Vitae ; Sadiara Fall <sup>sadiara.fall@unistra.fr" class="auth_mail" title="E-mail the corresponding authorsup>Author Vitae ; Patrick Lé ; vê ; que <sup>patrick.leveque@unistra.fr" class="auth_mail" title="E-mail the corresponding authorsup>Author Vitae ; Ugur Soysal <sup>ugursoysal@yahoo.com" class="auth_mail" title="E-mail the corresponding authorsup>Author Vitae ; Thomas Heiser<sup> ; sup><sup>thomas.heiser@unistra.fr" class="auth_mail" title="E-mail the corresponding authorsup>Author Vitae
- 关键词：OFET ; Hysteresis ; Poly-3-hexylthiophene ; Gas sensors ; Ethanol ; Acetone
- 刊名：Sensors & Actuators: B. Chemical
- 出版年：2016
- 出版时间：31 March 2016
- 年：2016
- 卷：225
- 期：Complete
- 页码：90-95
- 全文大小：737 K
文摘
Sensing of polar volatile organic compounds by generic organic-field-effect transistors has been achieved by monitoring both, the drain current at a fixed gate voltage and the charge carrier mobility. In this paper we show that the hysteresis of the transfer-characteristics of P3HT-based OFETs can be used as an additional sensing parameter for the detection of polar vapors. The response of the hysteresis to polar vapors is marked by a reversible increase at a time-scale similar to the previously reported parameters. By supplementing the responses of on-current and mobility with the hysteresis-response, an improvement of the device selectivity to ethanol and acetone vapor is achieved.