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231225s2018 xx |||||o 00| ||eng c |
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|a 10.1002/adma.201705948
|2 doi
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|a pubmed25n0936.xml
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|a DE-627
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|a eng
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| 100 |
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|a Zheng, Hongzhi
|e verfasserin
|4 aut
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| 245 |
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|a Uncovering the Circular Polarization Potential of Chiral Photonic Cellulose Films for Photonic Applications
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|c 2018
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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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|a Date Completed 01.08.2018
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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 Circularly polarized light (CPL) is central to photonic technologies. A key challenge lies in developing a general route for generation of CPL with tailored chiroptical activity using low-cost raw materials suitable for scale-up. This study presents that cellulose films with photonic bandgaps (PBG) and left-handed helical sense have an intrinsic ability for circular polarization leading to PBG-based CPL with extraordinary |g | values, well-defiend handedness, and tailorable wavelength by the PBG change. Using such cellulose films, incident light ranging from near-UV to near-IR can be transformed to passive L-CPL and R-CPL with viewing-side-dependent handedness and |g | values up to 0.87, and spontaneous emission transformed to R-CPL emission with |g | values up to 0.68. Unprecedented evidence is presented with theoretical underpinning that the PBG effect can stimulate the R-CPL emission. The potential of cellulose-based CPL films for polarization-based encryption is illustrated. The evaporation-induced self-assembly coupled with nanoscale mesogens of cellulose nanocrystals opens new venues for technological advances and enables a versatile strategy for rational design and scalable manufacturing of organic and inorganic CPL films for photonic applications
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|a Journal Article
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|a cellulose nanocrystals
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|a chiral nematic liquid crystals
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|a circularly polarized light
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|a photonic applications
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|a Li, Wanru
|e verfasserin
|4 aut
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| 700 |
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|a Li, Wen
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Xiaojun
|e verfasserin
|4 aut
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| 700 |
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|a Tang, Zhiyong
|e verfasserin
|4 aut
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| 700 |
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|a Zhang, Sean Xiao-An
|e verfasserin
|4 aut
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| 700 |
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|a Xu, Yan
|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), 13 vom: 11. März, Seite e1705948
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|x 1521-4095
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|g volume:30
|g year:2018
|g number:13
|g day:11
|g month:03
|g pages:e1705948
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|u http://dx.doi.org/10.1002/adma.201705948
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