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 construc...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(50μm),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.展开更多
基金The authors gratefully acknowledge the financial support from the National Natural Science Foundation of China(51703253)the Fundamental Research Funds for the Central Universities,Key Research and Development Program of Shaanxi Province(2020GXLH-Z-010)+6 种基金the Chongqing Science and Technology Fund(cstc2020jcyj-msxmX0931)the Guangdong Basic and Applied Basic Research Foundation(2021A1515010633)the Ningbo Natural Science Foundation(202003N4060)the National Aerospace Science Foundation of China(2020Z073053007)the China Postdoctoral Science Foundation(2021M692624)the Natural Science Basic Research Program of Shaanxi Province(2022JQ-583)the Henan Key Laboratory of Special Protective Materials(Grant No.SZKFKT202106).
文摘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(50μm),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.
