Preprint Article Version 1 This version is not peer-reviewed

Ethanol Vapor Sensor Based on a Microfiber with Quantum- Dots Gel Coating

Version 1 : Received: 15 December 2018 / Approved: 17 December 2018 / Online: 17 December 2018 (09:30:07 CET)

A peer-reviewed article of this Preprint also exists.

Hu, S.; Yan, G.; Wu, C.; He, S. An Ethanol Vapor Sensor Based on a Microfiber with a Quantum-Dot Gel Coating. Sensors 2019, 19, 300. Hu, S.; Yan, G.; Wu, C.; He, S. An Ethanol Vapor Sensor Based on a Microfiber with a Quantum-Dot Gel Coating. Sensors 2019, 19, 300.

Journal reference: Sensors 2019, 19, 300
DOI: 10.3390/s19020300

Abstract

An ethanol vapor sensor based on a microfiber with quantum-dots (QDs) gel coating is proposed and demonstrated. The QDs gel was made from UV glue as the gel matrix and the CdSe/ZnS QDs with a concentration of 1mg/mL. The drawing and coating process were conducted by using a simple and low-cost home-made system. The bending, ethanol sensing, temperature response and time response tests were carried out, alternatively. The experimental results show that the fabricated sensor has a high sensitivity of -3.3%/ppm, a really low temperature cross-sensitivity of 0.17 ppm/℃ and a fast response time of 1.1s. The robust structure with ease of fabrication and excellent sensing performance render it a promising platform for real ethanol sensing application.

Subject Areas

Optical fiber ethanol vapor sensor; microfiber; quantum-dots gel

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