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Anticounterfeiting Materials: Patterned and Iridescent Plastics with 3D Inverse Opal Structure for Anticounterfeiting of the Banknotes (Advanced Optical Materials 8/2018)
Author(s) -
Meng Yao,
Liu Fangfang,
Umair Malik Muhammad,
Ju Benzhi,
Zhang Shufen,
Tang Bingtao
Publication year - 2018
Publication title -
advanced optical materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.89
H-Index - 91
ISSN - 2195-1071
DOI - 10.1002/adom.201870030
Subject(s) - iridescence , materials science , polyvinylidene fluoride , structural coloration , inverse , composite material , durability , nanotechnology , optoelectronics , optics , polymer , photonic crystal , physics , geometry , mathematics
Polyvinylidene fluoride (PVDF) structural color films with 3D inverse opal structure have been prepared by Bingtao Tang and co‐workers (article number 1701351 ). The iridescent plastic films show excellent durability and can be patterned easily. The patterns exhibit six distinct color states when the viewing angles increased from 5° to 45° due to the strong angle‐dependency effect which makes the film a higher security anti‐counterfeiting material.