介孔布拉格堆叠颜色可调传感器。
Mesoporous bragg stack color tunable sensors.
作者信息
Choi Sung Yeun, Mamak Marc, von Freymann Georg, Chopra Naveen, Ozin Geoffrey A
机构信息
Materials Chemistry Research Group, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, Canada M5S 3H6.
出版信息
Nano Lett. 2006 Nov;6(11):2456-61. doi: 10.1021/nl061580m.
Herein we report a novel self-assembly synthesis, structural and optical characterization of mesoporous Bragg stacks (MBS) composed of spin-coated multilayer stacks of mesoporous TiO(2) and mesoporous SiO(2). Investigation of the optical response of MBS to the infiltration of alcohols and alkanes into its pores reveals better sensitivity and selectivity than conventional Bragg reflectors. Furthermore, we demonstrate that the chemical sensing ability can be tuned via layer thickness, composition and surface properties.
在此，我们报告了一种由介孔TiO(2)和介孔SiO(2)的旋涂多层堆叠组成的介孔布拉格堆栈（MBS）的新型自组装合成、结构和光学表征。对MBS孔隙中醇类和烷烃渗透的光学响应研究表明，其比传统布拉格反射器具有更好的灵敏度和选择性。此外，我们证明了化学传感能力可以通过层厚度、组成和表面性质进行调节。
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