Towards Red Emissive Systems Based on Carbon Dots
Carbon dots (C-dots) represent an emerging class of nontoxic nanoemitters that show excitation wavelength-dependent photoluminescence (PL) with high quantum yield (QY) and minimal photobleaching. The vast majority of studies focus on C-dots that exhibit the strongest PL emissions in the blue/green r...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-08-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/11/8/2089 |
| _version_ | 1827684416654147584 |
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| author | Spyridon Gavalas Antonios Kelarakis |
| author_facet | Spyridon Gavalas Antonios Kelarakis |
| author_sort | Spyridon Gavalas |
| collection | DOAJ |
| description | Carbon dots (C-dots) represent an emerging class of nontoxic nanoemitters that show excitation wavelength-dependent photoluminescence (PL) with high quantum yield (QY) and minimal photobleaching. The vast majority of studies focus on C-dots that exhibit the strongest PL emissions in the blue/green region of the spectrum, while longer wavelength emissions are ideal for applications such as bioimaging, photothermal and photodynamic therapy and light-emitting diodes. Effective strategies to modulate the PL emission of C-dot-based systems towards the red end of the spectrum rely on extensive conjugation of sp<sup>2</sup> domains, heteroatom doping, solvatochromism, surface functionalization and passivation. Those approaches are systematically presented in this review, while emphasis is given on important applications of red-emissive suspensions, nanopowders and polymer nanocomposites. |
| first_indexed | 2024-03-10T08:30:55Z |
| format | Article |
| id | doaj.art-1c8468af69314ac9bd3fdc55772ec4be |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-10T08:30:55Z |
| publishDate | 2021-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-1c8468af69314ac9bd3fdc55772ec4be2023-11-22T09:00:21ZengMDPI AGNanomaterials2079-49912021-08-01118208910.3390/nano11082089Towards Red Emissive Systems Based on Carbon DotsSpyridon Gavalas0Antonios Kelarakis1UCLan Research Centre for Smart Materials, School of Natural Sciences, University of Central Lancashire, Preston PR1 2HE, UKUCLan Research Centre for Smart Materials, School of Natural Sciences, University of Central Lancashire, Preston PR1 2HE, UKCarbon dots (C-dots) represent an emerging class of nontoxic nanoemitters that show excitation wavelength-dependent photoluminescence (PL) with high quantum yield (QY) and minimal photobleaching. The vast majority of studies focus on C-dots that exhibit the strongest PL emissions in the blue/green region of the spectrum, while longer wavelength emissions are ideal for applications such as bioimaging, photothermal and photodynamic therapy and light-emitting diodes. Effective strategies to modulate the PL emission of C-dot-based systems towards the red end of the spectrum rely on extensive conjugation of sp<sup>2</sup> domains, heteroatom doping, solvatochromism, surface functionalization and passivation. Those approaches are systematically presented in this review, while emphasis is given on important applications of red-emissive suspensions, nanopowders and polymer nanocomposites.https://www.mdpi.com/2079-4991/11/8/2089fluorescencecarbon dotsred-emittingbioimaginglight-emitting diodes |
| spellingShingle | Spyridon Gavalas Antonios Kelarakis Towards Red Emissive Systems Based on Carbon Dots Nanomaterials fluorescence carbon dots red-emitting bioimaging light-emitting diodes |
| title | Towards Red Emissive Systems Based on Carbon Dots |
| title_full | Towards Red Emissive Systems Based on Carbon Dots |
| title_fullStr | Towards Red Emissive Systems Based on Carbon Dots |
| title_full_unstemmed | Towards Red Emissive Systems Based on Carbon Dots |
| title_short | Towards Red Emissive Systems Based on Carbon Dots |
| title_sort | towards red emissive systems based on carbon dots |
| topic | fluorescence carbon dots red-emitting bioimaging light-emitting diodes |
| url | https://www.mdpi.com/2079-4991/11/8/2089 |
| work_keys_str_mv | AT spyridongavalas towardsredemissivesystemsbasedoncarbondots AT antonioskelarakis towardsredemissivesystemsbasedoncarbondots |