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231225s2022 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202200011
|2 doi
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|a pubmed24n1125.xml
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|a (DE-627)NLM337779589
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|a (NLM)35246877
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|a DE-627
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|a eng
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|a Xu, Jiahui
|e verfasserin
|4 aut
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|a Rational Synthesis of Solid-State Ultraviolet B Emitting Carbon Dots via Acetic Acid-Promoted Fractions of sp3 Bonding Strategy
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|c 2022
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Revised 27.04.2022
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2022 Wiley-VCH GmbH.
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|a Carbon dots (CDs) have received tremendous attention for their excellent photoluminescence (PL) properties. However, it remains a great challenge to obtain CDs with ultraviolet (UV, 200-400 nm) emission in solid state, which requires strict control of the CDs structure and overcoming the aggregation-caused quenching (ACQ). Herein, a new sp3 compartmentalization strategy is developed to meet these requirements, by employing acetic acid to promote fractions of sp3 bonding during the synthesis of CDs. It markedly decreases the size of sp2 conjugating units in the CDs, and shifts PL emission to the ultraviolet B (UVB) region (λmax = 308 nm). Moreover, sp2 domains are well spatially compartmentalized by sp3 domains and the ACQ effect is minimized, enabling the high quantum yield in solid state (20.2%, λex = 265 nm) with a narrow bandwidth of 24 nm and environmental robustness. The solid-state UVB emissive CDs are highly desired for application in photonic devices. Hence, a demo of UVB light-emitting diodes is fabricated for plant lighting, leading to a 29% increase of ascorbic acid content in the basil. Overall, a rational and efficient way to construct solid UVB-CDs phosphors for wide applications is provided
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|a Journal Article
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|a carbon dots
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|a photoluminescence
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|a plant lighting
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|a solid state fluorescence
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|a ultraviolet B (UVB)
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|a Liang, Qingjing
|e verfasserin
|4 aut
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|a Li, Zijian
|e verfasserin
|4 aut
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|a Osipov, Vladimir Yu
|e verfasserin
|4 aut
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|a Lin, Yangjian
|e verfasserin
|4 aut
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|a Ge, Binghui
|e verfasserin
|4 aut
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|a Xu, Qian
|e verfasserin
|4 aut
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|a Zhu, Junfa
|e verfasserin
|4 aut
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|a Bi, Hong
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 34(2022), 17 vom: 30. Apr., Seite e2200011
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
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|g volume:34
|g year:2022
|g number:17
|g day:30
|g month:04
|g pages:e2200011
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|u http://dx.doi.org/10.1002/adma.202200011
|3 Volltext
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