Monodisperse Clay-Microballs for Tuning the Psuedogaps by Adsorption in Amorphous Photonic Structures
Monodisperse Clay-Microballs for Tuning the Psuedogaps by Adsorption in Amorphous Photonic Structures
复制标题
用于通过非晶光子结构中吸附调节赝能隙的单分散粘土微球
作者：
Okada;T.,* Hosoyamada;S.;Takada;C.;Ohta;C.
基于胶体非晶阵列的结构色在自然和人工系统中受到越来越多的关注，然而很少有胶体颗粒上的局部结构被设计用于调节光子赝隙。我们使用一种可膨胀的夹层无机纳米片，一种合成粘土，在单分散胶体二氧化硅球作为阵列中的成分。层间膨胀的无机纳米片的阳离子表面活性剂导致的胶体颗粒的尺寸增加，导致光谱红移的赝隙。这种现象与单分散颗粒尺寸的变化有关，这是通过改变限定的层状局部结构引起的。
Structural color based on colloidal amorphous arrays has received growing interest in both natural and artificial systems; however few local structures on colloidal particles have been designed to tune the photonic pseudogap. We use an expandable interlayered inorganic nanosheet, a synthetic clay, on monodisperse colloidal silica spheres as constituents in an array. Interlayer expansion of the inorganic nanosheet by a cationic surfactant led to an increase in the size of the colloidal particles, resulting in a spectral redshift of the pseudogap. This phenomenon was related to the change in size of the monodisperse particles, which was induced by changing the defined layered local structure.