Photoacoustic characteristics of carbon-based infrared absorbers

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Journal Title

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Volume Title

A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Date

2021-09

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Mcode

Degree programme

Language

en

Pages

10

Series

Photoacoustics, Volume 23

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 μm) 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.

Description

Funding Information: The work was funded by the Academy of Finland (Project numbers 326444 and 314364) and by the Academy of Finland Flagship Programme, Photonics Research and Innovation (PREIN), decision number: 320167 . This work made use of Tampere Microscopy Center facilities at Tampere University. Publisher Copyright: © 2021 The Author(s)

Keywords

Candle soot, Carbon nanotubes, Photoacoustic response

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Citation

Rossi, J, Uotila, 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