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Vibration-Regulated...
Vibration-Regulated Multi-State Long-Lived Emission from Star-Shaped Molecules
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- Li, Yiran (författare)
- Donghua Univ, Peoples R China; Fudan Univ, Peoples R China
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- Baryshnikov, Glib (författare)
- Linköpings universitet,Laboratoriet för organisk elektronik,Tekniska fakulteten
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- Siddique, Farhan (författare)
- Linköpings universitet,Laboratoriet för organisk elektronik,Tekniska fakulteten
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- Wei, Peng (författare)
- Donghua Univ, Peoples R China
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- Wu, Hongwei (författare)
- Donghua Univ, Peoples R China
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- Yi, Tao (författare)
- Donghua Univ, Peoples R China; Fudan Univ, Peoples R China
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(creator_code:org_t)
- 2022-10-26
- 2022
- Engelska.
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Ingår i: Angewandte Chemie International Edition. - : WILEY-V C H VERLAG GMBH. - 1433-7851 .- 1521-3773. ; 61:48
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- How to utilize molecular vibration to tune triplet-involved emissions in multiple states is highly challenging. Here, star-shaped triphenylamine derivatives have been employed as model systems to understand how molecular vibration affects thermally activated delayed fluorescence (TADF) and room temperature phosphorescence (RTP) emissions in multiple states. Nonplanar, star-shaped conformations allow molecules to generate appropriate vibrations in the solution state, facilitating vibronic coupling between their T-1 and T-2 states to generate effective TADF. More importantly, a relatively dispersed state can allow the molecules to efficiently vibrate in the solid state, and a crystalline environment further promotes a more efficient TADF. Lastly, by suppressing molecular vibration to inhibit the TADF, ultra-long RTP was observed upon doping these molecules into polymers. These molecules can be used in information encryption and storage as well as bioimaging.
Ämnesord
- NATURVETENSKAP -- Kemi -- Teoretisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Theoretical Chemistry (hsv//eng)
Nyckelord
- Anti-Counterfeiting; Bioimaging; Room Temperature Phosphorescence; Thermal Activation Delayed Fluorescence; Vibronic Coupling
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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