磁性光子晶体短链的制备、磁组装特性与光学性能
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- 英文论文题名：The preparation, magnetic assembly and optical properties of short magnetic photonic crystal nanochains
- 论文作者：唐开 ; 陈可 ; 马会茹 ; 官建国
- 英文论文作者：Kai Tang ; Ke Chen ; Huiru Ma ; Jianguo Guan ; School of Chemistry ; Chemical Engineering and Life Sciences ; Wuhan university of technology ; State Key Laboratory of Advanced Technology for Materials Synthesis and Processing ; Wuhan university of technology
- 年：2016
- 作者机构：武汉理工大学化学化工与生命科学学院;武汉理工大学材料复合新技术国家重点实验室;
- 论文关键词：光子晶体短链 ; 磁组装 ; 防伪
- 会议召开时间：2016-07-01
- 会议录名称：中国化学会第30届学术年会摘要集-第三十六分会：纳米材料合成与组装
- 语种：中文
- 分类号：O734
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第三十六分会 ; 纳米材料合成与组装
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：1
- 文件大小：225k
- 原文格式：D
- 会议级别：全国
摘要
目前,磁响应性光子晶体的组成单元主要包括单分散性磁性纳米粒子~[1]以及光子晶体纳米链和球~[2,3]。前者能在磁场下实现在可见光范围内的全光谱变色,但稳定性较差。后者可作为一种显色单元,但在磁场下只能显示出"开-关"效应。本文中,我们利用有机硅烷水解缩合反应,对超顺磁性粒子进行包覆,通过控制反应时间,制备出统计平均链长小于4μm的光子晶体短链。随着外加磁场强度的增加,该光子晶体短链发生取向-组装成长链,并伴随着拼接处间距的调整与减少,对应衍射峰的峰强不断增强,峰位显现出不变-红移-不变-蓝移的规律。由于该光子晶体短链在外加磁场下表现出复杂的光学性能变化,具有难易仿制的特点,因而在高级防伪领域具有潜在的应用前景。
Herein, short magnetic photonic crystal nanochains with less than 4 μm in length was prepared.With the increasing of magnetic strength, diffraction peak intensity increases continuously and diffraction wavelength appears invariant, red-shift and then invariant, blue-shift change in the range of 23 nm, which is attributed to the magnetic orientation, splicing assemble of short nanochains and the space variation in neighbor short chains under external magnetic field. The complicted and inimitable optical properties of short nanochains in the absence of magnetic field offer potential application in advanced anti-counterfeiting field.
Herein, short magnetic photonic crystal nanochains with less than 4 μm in length was prepared.With the increasing of magnetic strength, diffraction peak intensity increases continuously and diffraction wavelength appears invariant, red-shift and then invariant, blue-shift change in the range of 23 nm, which is attributed to the magnetic orientation, splicing assemble of short nanochains and the space variation in neighbor short chains under external magnetic field. The complicted and inimitable optical properties of short nanochains in the absence of magnetic field offer potential application in advanced anti-counterfeiting field.
引文
[1]Luo,W.;Ma,H.R.;Mou,F.Z.;Zhu,M.X.;Yan,J.D.;Guan,J.G.Adv.Mater.2014,26:1058.
[2]Hu,Y.X.;He,L.;Yin,Y.D.Angew.Chem.Int.Ed.2011,50:3747.
[3]Ge,J.P.;Lee,H.;He,L.Kim,J.;Lu,Z.D.;Kim,H.;Yin,Y.D.J.AM.CHEM.SOC.2009,131:15687.
[2]Hu,Y.X.;He,L.;Yin,Y.D.Angew.Chem.Int.Ed.2011,50:3747.
[3]Ge,J.P.;Lee,H.;He,L.Kim,J.;Lu,Z.D.;Kim,H.;Yin,Y.D.J.AM.CHEM.SOC.2009,131:15687.