Influence of Gold Nanoantennas on the Photoluminescence of Silicon Nanocrystals
We study the influence of gold nanoantennas on the photoluminescence signal of silicon nanocrystals. Unlike bulk silicon, which only exhibits low photoluminescence at room temperature due to its indirect band gap, silicon nanocrystals have the advantage of producing strong and size-dependent photolu...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-12-01
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| Series: | Photonics |
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| Online Access: | https://www.mdpi.com/2304-6732/9/12/985 |
| _version_ | 1797455625877192704 |
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| author | Ronja Köthemann Christian Golla Hong Qu Cedrik Meier |
| author_facet | Ronja Köthemann Christian Golla Hong Qu Cedrik Meier |
| author_sort | Ronja Köthemann |
| collection | DOAJ |
| description | We study the influence of gold nanoantennas on the photoluminescence signal of silicon nanocrystals. Unlike bulk silicon, which only exhibits low photoluminescence at room temperature due to its indirect band gap, silicon nanocrystals have the advantage of producing strong and size-dependent photoluminescence. Here, we place gold nanoantennas on a layered system in which silicon nanocrystals are integrated. The nanoantennas are embedded in the layered system by subsequent overgrowth. We find that the photoluminescence signal can be manipulated ranging from attenuation to enhancement. Moreover, we investigate the impact of grating coupling and the number of antennas per antenna array on the amplification of the photoluminescence signal. |
| first_indexed | 2024-03-09T15:57:00Z |
| format | Article |
| id | doaj.art-017892f88a7d4cb4bf1a5c947f984d31 |
| institution | Directory Open Access Journal |
| issn | 2304-6732 |
| language | English |
| last_indexed | 2024-03-09T15:57:00Z |
| publishDate | 2022-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Photonics |
| spelling | doaj.art-017892f88a7d4cb4bf1a5c947f984d312023-11-24T17:25:54ZengMDPI AGPhotonics2304-67322022-12-0191298510.3390/photonics9120985Influence of Gold Nanoantennas on the Photoluminescence of Silicon NanocrystalsRonja Köthemann0Christian Golla1Hong Qu2Cedrik Meier3Physics Department & CeOPP, Paderborn University, Warburger Str. 100, 33098 Paderborn, GermanyPhysics Department & CeOPP, Paderborn University, Warburger Str. 100, 33098 Paderborn, GermanyPhysics Department & CeOPP, Paderborn University, Warburger Str. 100, 33098 Paderborn, GermanyPhysics Department & CeOPP, Paderborn University, Warburger Str. 100, 33098 Paderborn, GermanyWe study the influence of gold nanoantennas on the photoluminescence signal of silicon nanocrystals. Unlike bulk silicon, which only exhibits low photoluminescence at room temperature due to its indirect band gap, silicon nanocrystals have the advantage of producing strong and size-dependent photoluminescence. Here, we place gold nanoantennas on a layered system in which silicon nanocrystals are integrated. The nanoantennas are embedded in the layered system by subsequent overgrowth. We find that the photoluminescence signal can be manipulated ranging from attenuation to enhancement. Moreover, we investigate the impact of grating coupling and the number of antennas per antenna array on the amplification of the photoluminescence signal.https://www.mdpi.com/2304-6732/9/12/985silicon nanocrystalsphotoluminescenceplasmonic nanoparticles |
| spellingShingle | Ronja Köthemann Christian Golla Hong Qu Cedrik Meier Influence of Gold Nanoantennas on the Photoluminescence of Silicon Nanocrystals Photonics silicon nanocrystals photoluminescence plasmonic nanoparticles |
| title | Influence of Gold Nanoantennas on the Photoluminescence of Silicon Nanocrystals |
| title_full | Influence of Gold Nanoantennas on the Photoluminescence of Silicon Nanocrystals |
| title_fullStr | Influence of Gold Nanoantennas on the Photoluminescence of Silicon Nanocrystals |
| title_full_unstemmed | Influence of Gold Nanoantennas on the Photoluminescence of Silicon Nanocrystals |
| title_short | Influence of Gold Nanoantennas on the Photoluminescence of Silicon Nanocrystals |
| title_sort | influence of gold nanoantennas on the photoluminescence of silicon nanocrystals |
| topic | silicon nanocrystals photoluminescence plasmonic nanoparticles |
| url | https://www.mdpi.com/2304-6732/9/12/985 |
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