A polyelectrolyte-induced highly processable pigment-like photonic crystal ink  

作　　者：Guangxin Tan Wenxin Fan Zhihong Nie Kunyan Sui 

机构地区：[1]State Key Laboratory of Bio-Fibers and Eco-Textiles,College of Materials Science and Engineering,Shandong Collaborative Innovation Center of Marine Biobased Fibers and Ecological Textiles,Institute of Marine Bio-based Materials,Qingdao University,Qingdao,266071,China [2]School State Key Laboratory of Molecular Engineering of Polymers Department of Macromolecular Science Fudan University,Shanghai,200438,China

出　　处：《Progress in Natural Science:Materials International》2024年第5期1049-1056,共8页自然科学进展·国际材料(英文版)

基　　金：supported by National Natural Science Foundation of China (52273036, 52003133);“Youth Innovation Team Plan” of Colleges and Universities of Shandong Province (2022KJ299);State Key Laboratory of Bio-Fibers and Eco-Textiles,Qingdao University(G2RC202024 and ZDKT202006);the Program for Taishan Scholar of Shandong Province (NO. tstp20231226)

摘　　要：Developing a straightforward strategy for constructing highly processable photonic crystals(PCs) is crucial for various applications, yet remains a challenge. Here, we present a simple polyelectrolyte-induced self-assembly strategy for producing novel photonic crystal(PC) inks with outstanding processing flexibility by adding the polyelectrolytes into the ultralow concentration of colloidal nanoparticle solution. The polyelectrolyte can cover the nanoparticles through the hydrogen bond interaction to induce the aggregation and mutual repulsion of them simultaneously, enabling the self-assembly of ultralow concentration(0.01–1.0 v/v%) of nanoparticles into shortrange ordered arrays with angle-independent structural colors. The resulting PC inks present unprecedented pigment-like color modulation capacity, as well as ultrahigh freedom in processing methods due to the fact that the rheological behaviors of PC inks can be widely adjusted by varying the properties of polyelectrolytes.Consequently, the PC inks can be easily shaped into complex and exquisite multicolor patterns/3D structures using various techniques, including injection molding, writing, drawing, and 3D printing. This general approach paves the way for quick and scalable production of advanced PC materials deeply required in practical applications.

关 键 词：POLYELECTROLYTE Photonic crystals Self-assembly Multicolor patterns Processing flexibility 

分 类 号：TQ638[化学工程—精细化工]