Photoacoustic characteristics of carbon-based infrared absorbers

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http://hdl.handle.net/10138/333929

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Rossi , J , Rossi , J , Sharma , S , Laurila , T , Teissier , R , Baranov , A , Ikonen , E & Vainio , M 2021 , ' Photoacoustic characteristics of carbon-based infrared absorbers ' , Photoacoustics , vol. 23 , 100265 . https://doi.org/10.1016/j.pacs.2021.100265

Title: Photoacoustic characteristics of carbon-based infrared absorbers
Author: Rossi, Jussi; Rossi, Jussi; Sharma, Sucheta; Laurila, Toni; Teissier, Roland; Baranov, Alexei; Ikonen, Erkki; Vainio, Markku
Contributor: University of Helsinki, Department of Chemistry
Date: 2021-09
Language: eng
Number of pages: 10
Belongs to series: Photoacoustics
ISSN: 2213-5979
URI: http://hdl.handle.net/10138/333929
Abstract: We present an experimental comparison of photoacoustic responsivities of common highly absorbing carbon based materials. The comparison was carried out with parameters relevant for photoacoustic power detectors and Fourier-transform infrared (FTIR) spectroscopy: we covered a broad wavelength range from the visible red to far infrared (633 nm to 25 mu m) and the regime of low acoustic frequencies (< 1 kHz). The investigated materials include a candle soot-based coating, a black paint coating and two different carbon nanotube coatings. Of these, the low-cost soot absorber produced clearly the highest photoacoustic response over the entire measurement range.
Subject: 116 Chemical sciences
Candle soot
Carbon nanotubes
Photoacoustic response
PYROELECTRIC DETECTOR
PERFORMANCE
CONVERSION
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