Non-gelated polymeric photonic crystal films

Zhaoran Chu; Zheng Ding; Xuanjun Ning; Yimihan A; Menghan Wang; Kan Shao; Wenwei Tang; Cheng Chen; Jianzhong Bai

doi:10.3389/fchem.2022.1009669

Non-gelated polymeric photonic crystal films

Front Chem. 2022 Sep 20:10:1009669. doi: 10.3389/fchem.2022.1009669. eCollection 2022.

Authors

Zhaoran Chu¹, Zheng Ding², Xuanjun Ning¹, Yimihan A¹, Menghan Wang¹, Kan Shao³, Wenwei Tang⁴, Cheng Chen^{1

5}, Jianzhong Bai²

Affiliations

¹ School of Energy and Materials, Shanghai Polytechnic University, Shanghai, China.
² Department of Orthopaedics, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
³ Department of Endocrinology, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
⁴ Modern Service Department, College of International Vocational Education, Shanghai Polytechnic University, Shanghai, China.
⁵ Shanghai Engineering Research Center of Advanced Thermal Functional Materials, Shanghai Polytechnic University, Shanghai, China.

Abstract

A rapid curing method for the preparation of colloidal photonic crystal films is presented. Firstly, a colloidal crystal array template was prepared by self-assembly of nanospheres, and then a dilute polymer solution was poured into the gap of the template. Then the composite photonic film was obtained as the polymer solution was cured. Such films have good properties in mechanical strength, anti pH interference, rapid solvent response and are easy to preserve. The films show good linear response to ethanol aqueous solutions of different concentrations, and the response equilibrium takes less than 20 s. The films also show long-term stability and reusability, and further functionalization can make the films multi-sensitive.

Keywords: bulk film; colloidal crystal; photonic crystal; polymer; sensor.