Free-Standing Photonic Crystal Films with Gradient Structural Colors

被引：74

作者：

Ding, Haibo ^{[1
]}

Liu, Cihui ^{[1
]}

Ye, Baofen ^{[1
]}

Fu, Fanfan ^{[1
]}

Wang, Huan ^{[1
]}

Zhao, Yuanjin ^{[1
]}

Gu, Zhongze ^{[1
]}

机构：

[1] Southeast Univ, Sch Biol Sci & Med Engn, State Key Lab Bioelect, Nanjing 210096, Jiangsu, Peoples R China

来源：

ACS APPLIED MATERIALS & INTERFACES | 2016年 / 8卷 / 11期

基金：

美国国家科学基金会; 高等学校博士学科点专项科研基金;

关键词：

photonic crystal; colloidal crystal; structural color; film; angle independent; COLLOIDAL CRYSTAL; PARTICLES;

D O I：

10.1021/acsami.6b01991

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Hydrogel colloidal crystal composite materials have a demonstrated value in responsive photonic crystals (PhCs) via controllable stimuli. Although they have been successfully exploited to generate a gradient of color distribution, the soft hydrogels have limitations in terms of stability and storage caused by dependence on environment Here, we present a practical strategy to fabricate free-standing PhC films with a stable gradient of structural colors using binary polymer networks. A colloidal crystal hydrogel film was prepared for this purpose, with continuously varying photonic band gaps corresponding to the gradient of the press. Then, a second polymer network was used to lock the inside non-close-packed PhC structures and color distribution of the hydrogel film. It was demonstrated that our strategy could bring about a solution to the angle-dependent structural colors of the PhC films by coating the surface with special microstructures.

引用

页码：6796 / 6801

页数：6

共 31 条

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