Flexible Photonic Crystal Material for Multiple Anticounterfeiting Applications

• Published in: ACS applied materials & interfaces Vol. 10; no. 11; pp. 9858 - 9864
• Main Authors: Peng, Chang-Yi, Hsu, Che-Wei, Li, Ching-Wen, Wang, Po-Lin, Jeng, Chien-Chung, Chang, Cheng-Chung, Wang, Gou-Jen
• Format: Journal Article
• Language: English
• Published: United States American Chemical Society 21.03.2018
• Subjects: crystals; deformation; energy; films (materials); fluorescent dyes; photons; polymers; ultraviolet radiation; fluorophores; second-order diffraction; nanoimprinting; anticounterfeiting; full-color grating; flexible photonic crystal polymer

In this study, a nanoimprinting method was introduced to fabricate polycarbonate films with transparent and flexible photonic crystal (FPC) structures. The fabricated flexible polymer films display a full-color grating because of the nanohemispherical structures on the surface. Through the Bragg dif...