基于固-液并存Janus组装单元制备各向异性分子型胶体光子晶体微珠
详细信息 查看官网全文
- 英文论文题名：Fabrication of Anisotropy Molecular-Analogue Photonic Crystal Supraballs from Janus Building Blocks
- 论文作者：尹苏娜 ; 曹宽宏 ; 刘园园 ; 杨胜洋
- 英文论文作者：Su-Na Yin ; Kuan-Hong Cao ; Yuanyuan Liu ; Shengyang Yang ; Department of Chemistry and Chemical Engineering ; Yangzhou University
- 年：2016
- 作者机构：扬州大学;
- 论文关键词：胶体光子晶体 ; Janus组装单元 ; 各向异性 ; 微流控
- 英文论文关键词：Colloidal photonic crystals ; Janus building block ; Anisotropy ; Microfluidics
- 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-第三十一分会：胶体与界面化学
- 语种：中文
- 分类号：O648.1;O734
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第三十一分会 ; 胶体与界面化学
- 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：202k
- 原文格式：D
- 会议级别：全国
摘要
胶体光子晶体微珠因其独特的组装机理,不仅具有长程有序的六方密堆积结构,更重要的是在宏观光学性能上体现出全方位的光学一致性。本文将原子或分子基于价键理论组装的原理引进胶体光子晶体微珠的组装领域,大大扩展了胶体光子晶体微珠的形貌。首先通过三相微流控技术设计特定的固-液并存型Janus胶体光子晶体微珠,赋予使其固体半球光子带隙结构,对称半球成液体状态并具有磁响应性的功能。继而从液滴界面自由能最低原理出发,首次以此固-液共存的Janus微粒为组装单元,通过外界磁场诱导其液体半球以碰撞合并的方式组装生成具有类似于分子结构的多面型胶体光子晶体微珠(例如:点状AB、线状AB_2、面状AB_3、正四面体AB_4、三角双锤AB_5等复杂结构)。此类分子构型的胶体光子晶体微珠在光电器件,传感器,编码以及防伪等领域具有重要的应用前景。
In this work,we demonstrate an operable magnetic-directed assembly strategy to engineer PC particles into a series of molecular-analogue superstructural morphologies based on Janus building blocks.Herein,Janus building block composed of colloid PCs as the solid hemisphere and superparamagnetic nanoparticles confined in the other liquid part can be successfully designed via triphase microfluidics.Interestingly,the notable characteristics of solid-liquid phases within a single unit for particle synthesis should pave a new powerful way for the realization of advanced multifunctional materials via their coalescence upon collision under externally magnetic field.Moreover,with the use of solid-liquid Janus units as new building blocks,the first example of molecular-analogue PC clusters including dot(AB),line(AB_2),triangle(AB_3),tetrahedron(AB_4) and triangular(AB5) bipyramid structures were constructed,which are meaningful for various applications such as optoelectronic devices,combined sensors,encoding,and anti-counterfeiting.
In this work,we demonstrate an operable magnetic-directed assembly strategy to engineer PC particles into a series of molecular-analogue superstructural morphologies based on Janus building blocks.Herein,Janus building block composed of colloid PCs as the solid hemisphere and superparamagnetic nanoparticles confined in the other liquid part can be successfully designed via triphase microfluidics.Interestingly,the notable characteristics of solid-liquid phases within a single unit for particle synthesis should pave a new powerful way for the realization of advanced multifunctional materials via their coalescence upon collision under externally magnetic field.Moreover,with the use of solid-liquid Janus units as new building blocks,the first example of molecular-analogue PC clusters including dot(AB),line(AB_2),triangle(AB_3),tetrahedron(AB_4) and triangular(AB5) bipyramid structures were constructed,which are meaningful for various applications such as optoelectronic devices,combined sensors,encoding,and anti-counterfeiting.
引文
[1]Yu,Z.;Wang,C.F.;Ling,L.;Chen,L.;Chen,S.Angew.Chem.Int.Ed.2012,51(10):2375-2378.
[2]Yin,S.N.;Wang,C.F.;Yu,Z.Y.;Wang,J.;Liu,S.S.;Chen,S.Adv.Mater.2011,23(26):2915-2919.
[2]Yin,S.N.;Wang,C.F.;Yu,Z.Y.;Wang,J.;Liu,S.S.;Chen,S.Adv.Mater.2011,23(26):2915-2919.