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231225s2018 xx |||||o 00| ||eng c |
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|a 10.1002/adma.201803856
|2 doi
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|a pubmed24n0963.xml
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|a (DE-627)NLM288964209
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|a (NLM)30260515
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
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|a Tao, Ye
|e verfasserin
|4 aut
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|a Resonance-Activated Spin-Flipping for Efficient Organic Ultralong Room-Temperature Phosphorescence
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|c 2018
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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
|b cr
|2 rdacarrier
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|a Date Completed 05.11.2018
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|a Date Revised 01.10.2020
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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|a Triplet-excited-state-involved photonic and electronic properties have attracted tremendous attention for next-generation technologies. To populate triplet states, facile intersystem crossing (ISC) for efficient exciton spin-flipping is crucial, but it remains challenging in organic molecules free of heavy atoms. Here, a new strategy is proposed to enhance the ISC of purely organic optoelectronic molecules using heteroatom-mediated resonance structures capable of promoting spin-flipping at large singlet-triplet splitting energies with the aid of the fluctuation of the state energy and n-orbital component upon self-adaptive resonance variation. Combined experimental and theoretical investigations confirm the key contributions of the resonance variation to the profoundly promoted spin-flipping with ISC rate up to ≈107 s-1 in the rationally designed NPX (X = O or S) resonance molecules. Importantly, efficient organic ultralong room-temperature phosphorescence (OURTP) with simultaneously elongated lifetime and improved efficiency results overcoming the intrinsic competition between the OURTP lifetime and efficiency. With the spectacular resonance-activated OURTP molecules, time-resolved and color-coded quick response code devices with multiple information encryptions are realized, demonstrating the fundamental significance of this approach in boosting ISC dynamically for advanced optoelectronic applications
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|a Journal Article
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|a dynamic activation
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|a organic afterglow
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|a organic ultralong room-temperature phosphorescence
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|a resonance molecules
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|a spin-flipping
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|a Chen, Runfeng
|e verfasserin
|4 aut
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|a Li, Huanhuan
|e verfasserin
|4 aut
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|a Yuan, Jie
|e verfasserin
|4 aut
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|a Wan, Yifang
|e verfasserin
|4 aut
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|a Jiang, He
|e verfasserin
|4 aut
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| 700 |
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|a Chen, Cailin
|e verfasserin
|4 aut
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|a Si, Yubing
|e verfasserin
|4 aut
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|a Zheng, Chao
|e verfasserin
|4 aut
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| 700 |
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|a Yang, Baocheng
|e verfasserin
|4 aut
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|a Xing, Guichuan
|e verfasserin
|4 aut
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| 700 |
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|a Huang, Wei
|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 30(2018), 44 vom: 05. Nov., Seite e1803856
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
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|g volume:30
|g year:2018
|g number:44
|g day:05
|g month:11
|g pages:e1803856
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|u http://dx.doi.org/10.1002/adma.201803856
|3 Volltext
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