Computational Study of the Effect of the Size-Dependent Dielectric Functions of Gold Nanomaterials on Optical Properties
The effect of size on the optical properties of gold nanomaterials has been studied using the theoretical Drude–Sommerfield model. The real and imaginary parts of the dielectric function of bulk as a function of wavelength due to free electron contribution and the real and imaginary parts of the die...
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| Format: | Article |
| Language: | English |
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Wiley
2024-01-01
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| Series: | Advances in Condensed Matter Physics |
| Online Access: | http://dx.doi.org/10.1155/2024/8846112 |
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| author | Bawoke Mekuye Rainer Höfer Gedefaw Mebratie |
| author_facet | Bawoke Mekuye Rainer Höfer Gedefaw Mebratie |
| author_sort | Bawoke Mekuye |
| collection | DOAJ |
| description | The effect of size on the optical properties of gold nanomaterials has been studied using the theoretical Drude–Sommerfield model. The real and imaginary parts of the dielectric function of bulk as a function of wavelength due to free electron contribution and the real and imaginary parts of the dielectric function of nanogold materials as a function of wavelength due to free electron and bond electron contribution are calculated. The real and imaginary parts of the dielectric function of bulk as a function of wavelength due to the free electron contribution graph and The real and imaginary parts of the dielectric function of nanogold materials as a function of wavelength due to free electron and bond electron contributions are plotted. As we observed from the graphs, the real dielectric functions of both bulk and nanogold materials are inversely proportional to wavelength. The imaginary part of the dielectric function of bulk gold materials is independent of wavelength. At high wavelengths, the size of the gold nanomaterial is highly influenced by both real and imagined dielectric functions at high waves. As the wavelength increases, the effect of the size on the dielectric function also increases. The size-dependent dielectric function of nanomaterials is highly influenced by their optical properties and electrical structure. |
| format | Article |
| id | doaj-art-5cc675795eaa449baf42633f8ed306fb |
| institution | Kabale University |
| issn | 1687-8124 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Condensed Matter Physics |
| spelling | doaj-art-5cc675795eaa449baf42633f8ed306fb2025-02-03T05:55:21ZengWileyAdvances in Condensed Matter Physics1687-81242024-01-01202410.1155/2024/8846112Computational Study of the Effect of the Size-Dependent Dielectric Functions of Gold Nanomaterials on Optical PropertiesBawoke Mekuye0Rainer Höfer1Gedefaw Mebratie2Department of PhysicsEditorial EcosirisDepartment of PhysicsThe effect of size on the optical properties of gold nanomaterials has been studied using the theoretical Drude–Sommerfield model. The real and imaginary parts of the dielectric function of bulk as a function of wavelength due to free electron contribution and the real and imaginary parts of the dielectric function of nanogold materials as a function of wavelength due to free electron and bond electron contribution are calculated. The real and imaginary parts of the dielectric function of bulk as a function of wavelength due to the free electron contribution graph and The real and imaginary parts of the dielectric function of nanogold materials as a function of wavelength due to free electron and bond electron contributions are plotted. As we observed from the graphs, the real dielectric functions of both bulk and nanogold materials are inversely proportional to wavelength. The imaginary part of the dielectric function of bulk gold materials is independent of wavelength. At high wavelengths, the size of the gold nanomaterial is highly influenced by both real and imagined dielectric functions at high waves. As the wavelength increases, the effect of the size on the dielectric function also increases. The size-dependent dielectric function of nanomaterials is highly influenced by their optical properties and electrical structure.http://dx.doi.org/10.1155/2024/8846112 |
| spellingShingle | Bawoke Mekuye Rainer Höfer Gedefaw Mebratie Computational Study of the Effect of the Size-Dependent Dielectric Functions of Gold Nanomaterials on Optical Properties Advances in Condensed Matter Physics |
| title | Computational Study of the Effect of the Size-Dependent Dielectric Functions of Gold Nanomaterials on Optical Properties |
| title_full | Computational Study of the Effect of the Size-Dependent Dielectric Functions of Gold Nanomaterials on Optical Properties |
| title_fullStr | Computational Study of the Effect of the Size-Dependent Dielectric Functions of Gold Nanomaterials on Optical Properties |
| title_full_unstemmed | Computational Study of the Effect of the Size-Dependent Dielectric Functions of Gold Nanomaterials on Optical Properties |
| title_short | Computational Study of the Effect of the Size-Dependent Dielectric Functions of Gold Nanomaterials on Optical Properties |
| title_sort | computational study of the effect of the size dependent dielectric functions of gold nanomaterials on optical properties |
| url | http://dx.doi.org/10.1155/2024/8846112 |
| work_keys_str_mv | AT bawokemekuye computationalstudyoftheeffectofthesizedependentdielectricfunctionsofgoldnanomaterialsonopticalproperties AT rainerhofer computationalstudyoftheeffectofthesizedependentdielectricfunctionsofgoldnanomaterialsonopticalproperties AT gedefawmebratie computationalstudyoftheeffectofthesizedependentdielectricfunctionsofgoldnanomaterialsonopticalproperties |