化学学报 ›› 2004, Vol. 62 ›› Issue (20): 2089-2092. 上一篇    下一篇

研究论文

聚苯乙烯光子晶体的制备及其在传感中的应用

谈勇1, 杨可靖1, 曹跃霞1, 周蓉1, 陈明1, 钱卫平1,2   

  1. 1. 东南大学分子与生物分子电子学教育部重点实验室, 南京, 210096;
    2. 南京大学固体微结构物理实验室, 南京, 210008
  • 投稿日期:2004-02-16 修回日期:2004-05-21 发布日期:2014-02-17
  • 通讯作者: 钱卫平,E-mail:wqian@seu.edu.cn;Tel:+86-25-83795719 E-mail:wqian@seu.edu.cn
  • 基金资助:
    国家自然科学基金(Nos.20275008,30240085)和高等学校全国优秀博士学位论文作者专项资金(No.200252)资助项目.

Fabrication of Polystyrene and Its Sensing Application to a Photonic Structure

TAN Yong1, YANG Ke-Jing1, CAO Yue-Xia1, ZHOU Rong1, CHEN Ming1, QIAN Wei-Ping1,2   

  1. 1. Key Laboratory of Molecular and Biomolecular Electronics, Southeast University, Ministry of Education, Nanjing 210096;
    2. aboratory of Solid State Microstructures, Nanjing University, Nanjing 210008
  • Received:2004-02-16 Revised:2004-05-21 Published:2014-02-17

以基于毛细作用的垂直沉积法将单分散的二氧化硅胶体微球自组装成光子晶体.在二氧化硅光子晶体的多孔结构里填充聚苯乙烯甲苯溶液,经甲苯挥发,通过氢氟酸处理去除二氧化硅模板,制备出精美的聚苯乙烯光子晶体.研究表明:保留了模板有序多孔结构的聚苯乙烯能被用来作为敏感膜,这使得其在基于折射率变化的传感应用中具有潜在的价值.

关键词: 光子晶体, 二氧化硅胶体晶, 聚苯乙烯, 传感

A self-assembly technique which relies on capillary forces to organize mono-dispersive silica colloidal spheres was used to fabricate colloidal silica photonic crystals by reliance on a vertical deposition technique. Elaborate photonic crystals were constructed from polystyrene, which can be dissolved in toluene, by templating the solution-cast materials in porous silica photonic structures. After the removal of the template by hydrofluoric acid dissolution, the polymer castings replicated the photonic features and the nanostructure of the master. It was demonstrated that polystyrene in a photonic structure can be used as sensing film, which is potentially valuable in a number of sensing applications based on a change in the average refractive index of the layer medium.

Key words: photonic crystal, silica colloidal crystal, polystyrene, sensing