Determination of the Size Distribution of Metallic Colloids from Extinction Spectroscopy
In this paper, we explore the ability of extinction spectroscopy to characterize colloidal suspensions of gold nanoparticles (Au NPs). We demonstrate that the Au NPs’ size distribution can be deduced by analyzing their extinction spectra using Mie theory. Our procedure, based on the non-negative lea...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-10-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/11/11/2872 |
| _version_ | 1827675866236190720 |
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| author | Yehia Mansour Yann Battie Aotmane En Naciri Nouari Chaoui |
| author_facet | Yehia Mansour Yann Battie Aotmane En Naciri Nouari Chaoui |
| author_sort | Yehia Mansour |
| collection | DOAJ |
| description | In this paper, we explore the ability of extinction spectroscopy to characterize colloidal suspensions of gold nanoparticles (Au NPs). We demonstrate that the Au NPs’ size distribution can be deduced by analyzing their extinction spectra using Mie theory. Our procedure, based on the non-negative least square algorithm, takes advantage of the high sensitivity of the plasmon band to the Au NP size. In addition, this procedure does not require any a priori information on the Au NP size distribution. The Au NPs’ size distribution of monomodal or bimodal suspensions can be satisfactorily determined from their extinction spectra. Finally, we show that this characterization tool is compatible with in situ measurement and allows following the change in NPs’ radii during laser exposure. |
| first_indexed | 2024-03-10T05:12:49Z |
| format | Article |
| id | doaj.art-5b9d8a7de4b24b0da3c74ba25daaf953 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-10T05:12:49Z |
| publishDate | 2021-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-5b9d8a7de4b24b0da3c74ba25daaf9532023-11-23T00:39:41ZengMDPI AGNanomaterials2079-49912021-10-011111287210.3390/nano11112872Determination of the Size Distribution of Metallic Colloids from Extinction SpectroscopyYehia Mansour0Yann Battie1Aotmane En Naciri2Nouari Chaoui3Université de Lorraine, LCP-A2MC, F-57000 Metz, FranceUniversité de Lorraine, LCP-A2MC, F-57000 Metz, FranceUniversité de Lorraine, LCP-A2MC, F-57000 Metz, FranceUniversité de Lorraine, LCP-A2MC, F-57000 Metz, FranceIn this paper, we explore the ability of extinction spectroscopy to characterize colloidal suspensions of gold nanoparticles (Au NPs). We demonstrate that the Au NPs’ size distribution can be deduced by analyzing their extinction spectra using Mie theory. Our procedure, based on the non-negative least square algorithm, takes advantage of the high sensitivity of the plasmon band to the Au NP size. In addition, this procedure does not require any a priori information on the Au NP size distribution. The Au NPs’ size distribution of monomodal or bimodal suspensions can be satisfactorily determined from their extinction spectra. Finally, we show that this characterization tool is compatible with in situ measurement and allows following the change in NPs’ radii during laser exposure.https://www.mdpi.com/2079-4991/11/11/2872colloidsnanoparticle size distributionextinction spectroscopyMie theory |
| spellingShingle | Yehia Mansour Yann Battie Aotmane En Naciri Nouari Chaoui Determination of the Size Distribution of Metallic Colloids from Extinction Spectroscopy Nanomaterials colloids nanoparticle size distribution extinction spectroscopy Mie theory |
| title | Determination of the Size Distribution of Metallic Colloids from Extinction Spectroscopy |
| title_full | Determination of the Size Distribution of Metallic Colloids from Extinction Spectroscopy |
| title_fullStr | Determination of the Size Distribution of Metallic Colloids from Extinction Spectroscopy |
| title_full_unstemmed | Determination of the Size Distribution of Metallic Colloids from Extinction Spectroscopy |
| title_short | Determination of the Size Distribution of Metallic Colloids from Extinction Spectroscopy |
| title_sort | determination of the size distribution of metallic colloids from extinction spectroscopy |
| topic | colloids nanoparticle size distribution extinction spectroscopy Mie theory |
| url | https://www.mdpi.com/2079-4991/11/11/2872 |
| work_keys_str_mv | AT yehiamansour determinationofthesizedistributionofmetalliccolloidsfromextinctionspectroscopy AT yannbattie determinationofthesizedistributionofmetalliccolloidsfromextinctionspectroscopy AT aotmaneennaciri determinationofthesizedistributionofmetalliccolloidsfromextinctionspectroscopy AT nouarichaoui determinationofthesizedistributionofmetalliccolloidsfromextinctionspectroscopy |