Modular Nanocomposite Films with Tunable Physical Organization of Cellulose Nanocrystals for Photonic Encryption
2020 | journal article. A publication with affiliation to the University of Göttingen.
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Modular Nanocomposite Films with Tunable Physical Organization of Cellulose Nanocrystals for Photonic Encryption
Wang, X.; Huang, H.; Cui, S.; Chen, Y.; Wang, X.; Zhang, K. & Yang, Y. (2020)
Advanced Optical Materials, 8(12) art. 2000547. DOI: https://doi.org/10.1002/adom.202000547
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- Authors
- Wang, Xiaojie; Huang, Heqin; Cui, Shiqiang; Chen, Ye; Wang, Xiaohui; Zhang, Kai ; Yang, Yang
- Abstract
- Reported herein is the novel achievement of uniform and tunable interference colors of nanocomposite films containing organized cellulose nanocrystals (CNCs) from dynamic hydrogel precursors. Homogeneous and amendable interference colors with broad range are obtained either by stacking the nanocomposite films to adjust the amount of CNCs in the propagation pathway of light or by regulating the rotation angles between the individual films to alter the relative organization of CNCs within the system. Moreover, the precise and controllable patterned CNC composite films with multicolors in one film are facilely fabricated for the first time from the patterned hydrogel precursors. Based on this stacking/rotation‐method, these patterned nanocomposite films with tunable interference colors can be further applied as fundamental elements for optical encryption by establishing a ternary‐coded decimal system with encoded decimal numerals, paving the way for the development of photonic functional materials based on CNCs.
- Issue Date
- 2020
- Journal
- Advanced Optical Materials
- Organization
- Fakultät für Forstwissenschaften und Waldökologie ; Burckhardt-Institut ; Abteilung Holztechnologie und Holzwerkstoffe
- Language
- English
- Sponsor
- German Research Foundation http://dx.doi.org/10.13039/501100001659
Lower Saxony Ministry of Science and Culture http://dx.doi.org/10.13039/100011937
National Science Foundation of China http://dx.doi.org/10.13039/501100001809
China Postdoctoral Science Foundation http://dx.doi.org/10.13039/501100002858
CSC http://dx.doi.org/10.13039/501100004543