Construction of Photoresponsive 3D Structures Based on Triphenylethylene Photochromic Building Blocks

Author:

Zhang Xiayu1,Liu Fukang1,Du Beibei1,Huang Rongjuan1,Zhang Simin1,He Yunfei1,Wang Hailan1,Cui Jingjing1,Zhang Biao1ORCID,Yu Tao1ORCID,Huang Wei123ORCID

Affiliation:

1. Frontiers Science Center for Flexible Electronics, Shaanxi Institute of Flexible Electronics & Shaanxi Institute of Biomedical Materials and Engineering, Northwestern Polytechnical University, 127 West Youyi Road, Xi’an 710072, China

2. Key Laboratory of Flexible Electronics & Institute of Advanced Materials, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, China

3. State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing 210023, China

Abstract

Photoresponsive materials have been widely used in sensing, bioimaging, molecular switches, information storage, and encryption nowadays. Although a large amount of photoresponsive materials have been reported, the construction of these smart materials into precisely prescribed complex 3D geometries is rarely studied. Here we designed a novel photoresponsive material methyl methacrylate containing triphenylethylene (TrPEF 2 -MA) that can be directly used for digital light processing (DLP) 3D printing. Based on TrPEF 2 -MA, a series of photoresponsive 3D structures with reversible color switching under ultraviolet/visible light irradiations were fabricated. These complex photoresponsive 3D structures show high resolutions (50  μ m), excellent repeatability (25 cycles without fatigue), and tunable saturate color degrees. Multicomponent DLP 3D printing processes were also carried out to demonstrate their great properties in information hiding and information-carrying properties. This design strategy for constructing photoresponsive 3D structures is attractive in the area of adaptive camouflage, information hiding, information storage, and flexible electronics.

Funder

Henan Key Laboratory of Special Protective Materials

Natural Science Basic Research Program of Shaanxi Province

China Postdoctoral Science Foundation

National Aerospace Science Foundation of China

Natural Science Foundation of Ningbo

Guangdong Basic and Applied Basic Research Foundation

Chongqing Science and Technology Fund

Fundamental Research Funds for the Central Universities

National Natural Science Foundation of China

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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