Enhanced Optical and Infrared Activity of Nanosphere Dimers Attributed to Dimer Geometry
Enhanced optical and infrared activity of subwavelength metal nanoparticles is key to their use in optoelectronics, spectroscopy, and sensing. The present work compared spectra of nanosphere dimers merged by centrifuging gold nanospheres with corresponding simulated nanoscale dimers. Geometric featu...
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| Format: | Article |
| Language: | English |
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IEEE
2024-01-01
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| Series: | IEEE Open Journal of Nanotechnology |
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| Online Access: | https://ieeexplore.ieee.org/document/10623222/ |
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| author | D. Keith Roper Jin-Woo Kim Ricardo R. Romo Joseph Batta-Mpouma |
| author_facet | D. Keith Roper Jin-Woo Kim Ricardo R. Romo Joseph Batta-Mpouma |
| author_sort | D. Keith Roper |
| collection | DOAJ |
| description | Enhanced optical and infrared activity of subwavelength metal nanoparticles is key to their use in optoelectronics, spectroscopy, and sensing. The present work compared spectra of nanosphere dimers merged by centrifuging gold nanospheres with corresponding simulated nanoscale dimers. Geometric features of the nanosphere dimers were related to corresponding optical and near-infrared activity through simulation. Differences in optical and infrared activity of the nanosphere dimers were largely attributable to changes in the radius of the nanosphere and the radius of the conductive junction between merged nanospheres. The features observed in the experimental spectra were attributed to a select number of dimers exhibiting predominantly optical and infrared activity, consistent with observations made in the corresponding transmission electron microscope image. The preparation and simulation methods in the present work appear useful to guide design, fabrication, and implementation of sustainably-synthesized nanosphere dimers with desired optical features for optoelectronic, spectroscopic, and sensing applications. |
| format | Article |
| id | doaj-art-45e6d0e1f61f454797ab7ce9fbed0e23 |
| institution | Kabale University |
| issn | 2644-1292 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Open Journal of Nanotechnology |
| spelling | doaj-art-45e6d0e1f61f454797ab7ce9fbed0e232025-01-24T00:02:22ZengIEEEIEEE Open Journal of Nanotechnology2644-12922024-01-015475610.1109/OJNANO.2024.343716410623222Enhanced Optical and Infrared Activity of Nanosphere Dimers Attributed to Dimer GeometryD. Keith Roper0https://orcid.org/0000-0003-0687-9311Jin-Woo Kim1https://orcid.org/0000-0002-7119-8208Ricardo R. Romo2Joseph Batta-Mpouma3https://orcid.org/0000-0002-7297-6956Department of Biological Engineering, Utah State University, Logan, UT, USADepartment of Biological & Agricultural Engineering, University of Arkansas, Fayetteville, AR, USAMaterials Science & Engineering Program, University of Arkansas, Fayetteville, AR, USADepartment of Biological & Agricultural Engineering, University of Arkansas, Fayetteville, AR, USAEnhanced optical and infrared activity of subwavelength metal nanoparticles is key to their use in optoelectronics, spectroscopy, and sensing. The present work compared spectra of nanosphere dimers merged by centrifuging gold nanospheres with corresponding simulated nanoscale dimers. Geometric features of the nanosphere dimers were related to corresponding optical and near-infrared activity through simulation. Differences in optical and infrared activity of the nanosphere dimers were largely attributable to changes in the radius of the nanosphere and the radius of the conductive junction between merged nanospheres. The features observed in the experimental spectra were attributed to a select number of dimers exhibiting predominantly optical and infrared activity, consistent with observations made in the corresponding transmission electron microscope image. The preparation and simulation methods in the present work appear useful to guide design, fabrication, and implementation of sustainably-synthesized nanosphere dimers with desired optical features for optoelectronic, spectroscopic, and sensing applications.https://ieeexplore.ieee.org/document/10623222/Dimerdiscrete dipole approximationnanoparticlespectrainfrared |
| spellingShingle | D. Keith Roper Jin-Woo Kim Ricardo R. Romo Joseph Batta-Mpouma Enhanced Optical and Infrared Activity of Nanosphere Dimers Attributed to Dimer Geometry IEEE Open Journal of Nanotechnology Dimer discrete dipole approximation nanoparticle spectra infrared |
| title | Enhanced Optical and Infrared Activity of Nanosphere Dimers Attributed to Dimer Geometry |
| title_full | Enhanced Optical and Infrared Activity of Nanosphere Dimers Attributed to Dimer Geometry |
| title_fullStr | Enhanced Optical and Infrared Activity of Nanosphere Dimers Attributed to Dimer Geometry |
| title_full_unstemmed | Enhanced Optical and Infrared Activity of Nanosphere Dimers Attributed to Dimer Geometry |
| title_short | Enhanced Optical and Infrared Activity of Nanosphere Dimers Attributed to Dimer Geometry |
| title_sort | enhanced optical and infrared activity of nanosphere dimers attributed to dimer geometry |
| topic | Dimer discrete dipole approximation nanoparticle spectra infrared |
| url | https://ieeexplore.ieee.org/document/10623222/ |
| work_keys_str_mv | AT dkeithroper enhancedopticalandinfraredactivityofnanospheredimersattributedtodimergeometry AT jinwookim enhancedopticalandinfraredactivityofnanospheredimersattributedtodimergeometry AT ricardorromo enhancedopticalandinfraredactivityofnanospheredimersattributedtodimergeometry AT josephbattampouma enhancedopticalandinfraredactivityofnanospheredimersattributedtodimergeometry |