A Polyaniline-Coated Integrated Microfiber Resonator for UV Detection

Lim, K.S. and Chiam, Y.S. and Phang, S.W. and Chong, W.Y. and Pua, C.H. and Zulkifli, A.Z. and Ganesan, I. and Harun, Sulaiman Wadi and Ahmad, Harith (2013) A Polyaniline-Coated Integrated Microfiber Resonator for UV Detection. IEEE Sensors Journal, 13 (5). pp. 2020-2025. ISSN 1530-437X

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Abstract

We present a UV detector based on an integrated microfiber resonator. In fabrication, a thin layer of polyaniline (PAni) is deposited on a ~1-mm-diameter microfiber ring resonator-the sensing region of the detector. Red shift is observed in the output spectrum when PAni is irradiated with a UV light with a peak wavelength at 365 nm. This phenomenon can be due to the high absorbance in the UV region and photothermal effect of PAni. The wavelength shift is linearly proportional to the UV light intensity and the measured sensitivity is 6.61 nm/(W·cm-2).

Item Type: Article
Uncontrolled Keywords: Microfiber; Polyaniline; Sensors; UV
Subjects: Q Science > Q Science (General)
Q Science > QC Physics
Q Science > QD Chemistry
Divisions: Faculty of Science > Dept of Physics
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 27 Oct 2015 02:29
Last Modified: 09 Oct 2018 05:46
URI: http://eprints.um.edu.my/id/eprint/14353

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