Temperature sensing using CdSe quantum dot doped poly(methyl methacrylate) microfiber

Irawati, Ninik and Harun, Sulaiman Wadi and Rahman, Husna Abdul and Chong, Su Sin and Hamizi, Nur Aliya and Ahmad, Harith (2017) Temperature sensing using CdSe quantum dot doped poly(methyl methacrylate) microfiber. Applied Optics, 56 (16). pp. 4675-4679. ISSN 0003-6935

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Official URL: https://doi.org/10.1364/AO.56.004675

Abstract

This work describes noncontact temperature measurements using wavelength shifts of CdSe quantum dot (QD) doped poly(methyl methacrylate) microfiber. The sensor is fabricated using a drawing method by bridging two tapered single mode fibers with a polymer microfiber (PMF) approximately 3 μm in diameter. A set of a PMF section with and without the doping of the CdSe-ZnS core-shell QD was applied as sensing probes and used to measure temperatures over the range of 25°C-48°C. The experimental results show that the doped PMF is able to achieve a higher performance with a reasonably good sensitivity of 58.5 pm/°C based on the wavelength shifting, which is about 18 times that of the undoped PMF temperature sensitivity. The proposed sensor showed a linear temperature sensing range that matches well with the physiologically relevant temperatures. Moreover, these results open the way for long-Term and high-stability realization of temperature sensing optical fibers.

Item Type: Article
Uncontrolled Keywords: Esters; Nanocrystals; Optical fiber fabrication; Optical fibers; Semiconductor quantum dots; Single mode fibers; Temperature measurement; Zinc sulfide
Subjects: Q Science > QC Physics
T Technology > TJ Mechanical engineering and machinery
T Technology > TK Electrical engineering. Electronics Nuclear engineering
T Technology > TP Chemical technology
Divisions: Faculty of Engineering
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 23 Nov 2018 08:45
Last Modified: 23 Nov 2018 08:45
URI: http://eprints.um.edu.my/id/eprint/19730

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