Comparison of Two Measurement Methods for Scattering and Absorption Coefficients in Boron Carbide Nanodispersions.
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| Title: | Comparison of Two Measurement Methods for Scattering and Absorption Coefficients in Boron Carbide Nanodispersions. |
|---|---|
| Authors: | Mercatelli, Luca1 (AUTHOR), Martina, Maria Raffaella1,2 (AUTHOR), Vallejo, Javier P.2,3 (AUTHOR), Lugo, Luis1,3 (AUTHOR), Sani, Elisa1,2 (AUTHOR) elisa.sani@ino.cnr.it |
| Source: | Nanomaterials (2079-4991). Oct2025, Vol. 15 Issue 20, p1598. 13p. |
| Subjects: | Light scattering, Absorption coefficients, Colloidal suspensions, Nanoparticles, Boron carbides, Spectrophotometry, Evaluation methodology, Solar energy |
| Abstract: | Nanoparticles suspended in a liquid alter the properties of the base liquid, expanding its fields of application. Nanodispersions can have several applications in solar energy, including serving as liquid sunlight absorbers, acting as optical filters in optics, or functioning as heat transfer fluids in solar thermal applications. However, for a precise evaluation of their use in a specific field, their properties must be carefully assessed. In this work, we use two different methods for the determination of the optical scattering and absorption coefficients of a nanodispersion of boron carbide (B4C), and we compare the obtained results. Monochromatic measurements are performed at 635, 685, 730, and 830 nm, utilizing a technique that relies on the theory of optical scattering in an infinite medium. They are compared with spectrally resolved measurements of ballistic and total transmittance in the wavelength range of 400–850 nm, obtained using a spectrophotometer with an integrating sphere. The two methods are consistent and give results in good agreement. We also found that the mean radius of nanoparticles is higher than expected, confirming the non-negligible scattering. [ABSTRACT FROM AUTHOR] |
| Copyright of Nanomaterials (2079-4991) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
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| Header | DbId: egs DbLabel: Engineering Source An: 188957081 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Comparison of Two Measurement Methods for Scattering and Absorption Coefficients in Boron Carbide Nanodispersions. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Mercatelli%2C+Luca%22">Mercatelli, Luca</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Martina%2C+Maria+Raffaella%22">Martina, Maria Raffaella</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Vallejo%2C+Javier+P%2E%22">Vallejo, Javier P.</searchLink><relatesTo>2,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Lugo%2C+Luis%22">Lugo, Luis</searchLink><relatesTo>1,3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Sani%2C+Elisa%22">Sani, Elisa</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> elisa.sani@ino.cnr.it</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Nanomaterials+%282079-4991%29%22">Nanomaterials (2079-4991)</searchLink>. Oct2025, Vol. 15 Issue 20, p1598. 13p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Light+scattering%22">Light scattering</searchLink><br /><searchLink fieldCode="DE" term="%22Absorption+coefficients%22">Absorption coefficients</searchLink><br /><searchLink fieldCode="DE" term="%22Colloidal+suspensions%22">Colloidal suspensions</searchLink><br /><searchLink fieldCode="DE" term="%22Nanoparticles%22">Nanoparticles</searchLink><br /><searchLink fieldCode="DE" term="%22Boron+carbides%22">Boron carbides</searchLink><br /><searchLink fieldCode="DE" term="%22Spectrophotometry%22">Spectrophotometry</searchLink><br /><searchLink fieldCode="DE" term="%22Evaluation+methodology%22">Evaluation methodology</searchLink><br /><searchLink fieldCode="DE" term="%22Solar+energy%22">Solar energy</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Nanoparticles suspended in a liquid alter the properties of the base liquid, expanding its fields of application. Nanodispersions can have several applications in solar energy, including serving as liquid sunlight absorbers, acting as optical filters in optics, or functioning as heat transfer fluids in solar thermal applications. However, for a precise evaluation of their use in a specific field, their properties must be carefully assessed. In this work, we use two different methods for the determination of the optical scattering and absorption coefficients of a nanodispersion of boron carbide (B4C), and we compare the obtained results. Monochromatic measurements are performed at 635, 685, 730, and 830 nm, utilizing a technique that relies on the theory of optical scattering in an infinite medium. They are compared with spectrally resolved measurements of ballistic and total transmittance in the wavelength range of 400–850 nm, obtained using a spectrophotometer with an integrating sphere. The two methods are consistent and give results in good agreement. We also found that the mean radius of nanoparticles is higher than expected, confirming the non-negligible scattering. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Nanomaterials (2079-4991) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.3390/nano15201598 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 13 StartPage: 1598 Subjects: – SubjectFull: Light scattering Type: general – SubjectFull: Absorption coefficients Type: general – SubjectFull: Colloidal suspensions Type: general – SubjectFull: Nanoparticles Type: general – SubjectFull: Boron carbides Type: general – SubjectFull: Spectrophotometry Type: general – SubjectFull: Evaluation methodology Type: general – SubjectFull: Solar energy Type: general Titles: – TitleFull: Comparison of Two Measurement Methods for Scattering and Absorption Coefficients in Boron Carbide Nanodispersions. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Mercatelli, Luca – PersonEntity: Name: NameFull: Martina, Maria Raffaella – PersonEntity: Name: NameFull: Vallejo, Javier P. – PersonEntity: Name: NameFull: Lugo, Luis – PersonEntity: Name: NameFull: Sani, Elisa IsPartOfRelationships: – BibEntity: Dates: – D: 15 M: 10 Text: Oct2025 Type: published Y: 2025 Identifiers: – Type: issn-print Value: 20794991 Numbering: – Type: volume Value: 15 – Type: issue Value: 20 Titles: – TitleFull: Nanomaterials (2079-4991) Type: main |
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