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231226s2023 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202212286
|2 doi
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|a pubmed24n1178.xml
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|a (DE-627)NLM353467332
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|a (NLM)36840606
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Song, Shi-Yu
|e verfasserin
|4 aut
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|a Colorful Triplet Excitons in Carbon Nanodots for Time Delay Lighting
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|c 2023
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 25.05.2023
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|a Date Revised 25.05.2023
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2023 Wiley-VCH GmbH.
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|a Time delay lighting offers an added period of buffer illumination for human eyes upon switching off the light. Long-lifetime emission from triplet excitons has outstanding potential, but the forbidden transition property due to the Pauli exclusion principle makes them dark, and it stays challenging to develop full-color and bright triplet excitons. Herein, triplet excitons emission from ultraviolet (UV) to near infrared (NIR) in carbon nanodots (CNDs) is achieved by confining multicolor CNDs emitters in NaCNO crystal. NaCNO crystal can isolate the CNDs, triplet excitons quenching caused by the excited state electrons aggregation induced energy transfer is suppressed, and the confinement crystal can furthermore promote phosphorescence of the CNDs by inhibiting the dissipation of the triplet excitons due to non-radiative transition. The phosphorescence from radiative recombination of triplet excitons in the CNDs covers the spectral region from 300 nm (UV) to 800 nm (NIR), the corresponding lifetimes can reach 15.8, 818.0, 239.7, 168.4, 426.4, and 127.6 ms. Furthermore, the eco-friendly luminescent lampshades are designed based on the multicolor phosphorescent CNDs, time delay light-emitting diodes are thus demonstrated. The findings will motivate new opportunities for the development of UV to NIR phosphorescent CNDs and time delay lighting applications
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|a Journal Article
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|a carbon nanodots
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|a lighting
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|a phosphorescence
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|a time delay
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|a triplet excitons
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|a Liu, Kai-Kai
|e verfasserin
|4 aut
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|a Mao, Xin
|e verfasserin
|4 aut
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|a Cao, Qing
|e verfasserin
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|a Li, Na
|e verfasserin
|4 aut
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|a Zhao, Wen-Bo
|e verfasserin
|4 aut
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|a Wang, Yong
|e verfasserin
|4 aut
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|a Liang, Ya-Chuang
|e verfasserin
|4 aut
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|a Zang, Jin-Hao
|e verfasserin
|4 aut
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|a Li, Xing
|e verfasserin
|4 aut
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|a Lou, Qing
|e verfasserin
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|a Dong, Lin
|e verfasserin
|4 aut
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|a Shan, Chong-Xin
|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 35(2023), 21 vom: 23. Mai, Seite e2212286
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
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|g volume:35
|g year:2023
|g number:21
|g day:23
|g month:05
|g pages:e2212286
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|u http://dx.doi.org/10.1002/adma.202212286
|3 Volltext
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