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Stimuli-responsive photofunctional materials for green and security printing 被引量:2
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作者 Yun Ma Yaxin Yu +3 位作者 Jiangang Li Shujuan Liu Wei Huang Qiang Zhao 《InfoMat》 SCIE CAS 2021年第1期82-100,共19页
Information recording on paper has always been the most important approach to keep records of human activity and to spread civilization.With the progress of science and technology,paper with different functions should... Information recording on paper has always been the most important approach to keep records of human activity and to spread civilization.With the progress of science and technology,paper with different functions should be exploited to conform to the increasing demands in various scenarios.In one aspect,traditional paper can only be used once,and using large amounts of paper causes deforestation,additional solid waste treatment,environmental pollution,and high energy consumption.Consequently,the development of rewritable paper that is environment-friendly,low cost,and can save resources is significant for green printing.In the other aspect,information leakage brings security issues,which may lead to severe consequences,such as war outbreak,economic loss,social problems,and so on.Therefore,the development of security printing has also attracted wide interests.Stimuli-responsive photofunctional materials that have reversible variations in absorption or emission in response to changes in the external environmental have a great potential for the achievement of green and security printing.To date,much progress has been made in these research areas.This paper lists different smart materials that respond to various external stimuli,such as light,water,pH,heat,and metal ions,and summarizes the recent advances towards green and security printing.Also,we discuss the current challenges and future directions in this rapidly growing research field.It is expected that this review article will stimulate and guide future studies for the advanced green and security printing. 展开更多
关键词 green printing rewritable paper security printing stimuli-responsive photofunctional materials
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调控分子间的电子耦合效应实现多彩超长有机室温磷光
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作者 佘鹏飞 段嘉宇 +6 位作者 李飞阳 周宇翔 秦妍妍 魏娟 刘淑娟 马云 赵强 《Science China Materials》 SCIE EI CAS CSCD 2023年第12期4749-4755,共7页
有机超长室温磷光聚合物因其优异的可加工性、灵活性和可重复性等特点,在各种光电应用中表现出巨大的应用潜力.然而,实现全彩的室温磷光仍然是一个挑战.在本文中,我们通过在聚乙烯醇中掺杂不同浓度的三苯基膦盐,成功制备了一系列余晖颜... 有机超长室温磷光聚合物因其优异的可加工性、灵活性和可重复性等特点,在各种光电应用中表现出巨大的应用潜力.然而,实现全彩的室温磷光仍然是一个挑战.在本文中,我们通过在聚乙烯醇中掺杂不同浓度的三苯基膦盐,成功制备了一系列余晖颜色可调的有机室温磷光聚合物(从蓝色到红色).实验和理论计算证明:室温磷光聚合物颜色的宽范围调控归因于掺杂体膦盐分子间的电子耦合作用大小.此外,这些多彩的磷光聚合物可应用于柔性3D显示和防伪. 展开更多
关键词 electronic coupling room-temperature phosphorescence polymer continuous RTP band tuning full-color RTP secure information printing
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寿命可调的有机室温磷光材料实现大面积安全打印 被引量:2
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作者 佘鹏飞 秦妍妍 +8 位作者 马云 李飞阳 陆金玉 戴佩伶 胡豪 刘向杰 刘淑娟 黄维 赵强 《Science China Materials》 SCIE EI CAS CSCD 2021年第6期1485-1494,共10页
有机室温磷光材料因其独特的光物理性质,在安全记录和防伪领域展现出了巨大的应用前景.然而,基于这类材料制备的防伪图案或标签存在分辨低、安全性低、不易大面积加工等缺点,极大地限制了其大规模商业化应用.本文设计、合成了一系列含... 有机室温磷光材料因其独特的光物理性质,在安全记录和防伪领域展现出了巨大的应用前景.然而,基于这类材料制备的防伪图案或标签存在分辨低、安全性低、不易大面积加工等缺点,极大地限制了其大规模商业化应用.本文设计、合成了一系列含不同长度烷基链的有机膦盐来解决以上问题.这类有机膦盐晶体中存在较强的分子内/间相互作用,使得它们具有高结晶能力,因此在经过研磨后仍然具有超长室温磷光.此外,通过改变烷基链长度和卤素离子,实现了室温磷光寿命的大范围调控(从1.27 ms到884.71 ms),并利用商用喷墨打印机成功实现了多重信息加密和防伪. 展开更多
关键词 persistent room-temperature phosphorescence organic salts tunable lifetime large-area processability security printing
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