Photoacoustic investigations of the optical absorption spectra of porous silicon layers on a silicon backing

Maliński, M.; Chrobák, L; Bychto, Leszek

doi:10.1016/j.ssc.2009.12.002

Cited by 12 publications

(4 citation statements)

References 11 publications

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“…The PA amplitude spectra of thin films were measured by using the experimental setup described in Refs. [21,22]. Self designed photoacoustic cell, with a G.R.A.S.…”

Section: Resultsmentioning

confidence: 99%

Determination of the optical absorption spectra of thin layers from their photoacoustic spectra

et al. 2018

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“…The PA amplitude spectra of thin films were measured by using the experimental setup described in Refs. [21,22]. Self designed photoacoustic cell, with a G.R.A.S.…”

Section: Resultsmentioning

confidence: 99%

Determination of the optical absorption spectra of thin layers from their photoacoustic spectra

et al. 2018

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“…Causing the intensity change of another light beam (probe beam PB) passing through the samples adjacent medium and grazing its surface. 23,24 Intensity changes are correlated to the iron concentration bonded in the examined gel. 25 Presumably, the BDS technique would provide a highly sensitive chemical analysis, will be non-invasive and will retain optical and structural characteristics of the sample, thus, offering new possibilities for determination of iron species in natural water environments.…”

Section: Introductionmentioning

confidence: 99%

Determination of Dissolved Iron Redox Species in Freshwater Sediment using DGT Technique Coupled to BDS

Budasheva

Kravos

Korte

et al. 2019

ACSi

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In this work we have developed a novel method for determination of iron redox species by the use of diffusive gradients in thin-film (DGT) technique coupled to photothermal beam deflection spectroscopy (BDS). The combination of both methods achieved low limit of detection (LOD) of 0.14 μM for Fe (II) ions. The total Fe concentration determined in the Vrtojbica river sediment (Slovenia, Rožna Dolina, 5000 Nova Gorica) was 49.3 µgL-1. The Fe (II) and Fe (III) concentration amounted to 12.8 µgL-1 and 39.9 µgL-1 , respectively. Such an approach opens new opportunities for monitoring the content of iron species in natural waters and sediments and provides highly sensitive chemical analysis and an accurate qualitative and quantitative characteristic of the materials under study.

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“…Some PA results concern investigations of thin SiC layers [10], or other thin layers [11]. A lot of papers describe PA spectra characteristics of thin porous layers on silicon [12]. Many papers describe PA spectra of thick semiconductor samples especially of mixed crystals [13,14].…”

Section: Introductionmentioning

confidence: 99%

Determination of the Optical Absorption Coefficient Spectra of Thin Semiconductor Layers from Their Photoacoustic Spectra

Bychto

Maliński

2018

Int J Thermophys

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This paper presents the new method of computation of the optical absorption coefficient spectra from the normalized photoacoustic amplitude spectra of thin semiconductor samples deposited on the optically transparent and thermally thick substrates. The simple equation for computations of the optical absorption coefficient spectrum from the normalized photoacoustic amplitude spectrum is derived and discussed. This model applied for computations of the optical absorption coefficient spectrum of thin germanium samples, deposited on the transparent glass substrate, from their photoacoustic spectra proved its correctness and usefulness.

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Photoacoustic investigations of the optical absorption spectra of porous silicon layers on a silicon backing

Cited by 12 publications

References 11 publications

Determination of the optical absorption spectra of thin layers from their photoacoustic spectra

Determination of the optical absorption spectra of thin layers from their photoacoustic spectra

Determination of Dissolved Iron Redox Species in Freshwater Sediment using DGT Technique Coupled to BDS

Determination of the Optical Absorption Coefficient Spectra of Thin Semiconductor Layers from Their Photoacoustic Spectra

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