Calvo Mauricio E, Sánchez-Sobrado Olalla, Colodrero Silvia, Míguez Hernán
Instituto de Ciencia de Materiales de Sevilla, Consejo Superior de Investigaciones Científicas, Sevilla, Spain.
Langmuir. 2009 Feb 17;25(4):2443-8. doi: 10.1021/la8030057.
Herein we present a detailed analysis of the effect of the spin-coating protocol over the optical properties of nanoparticle-based one-dimensional photonic crystals. Based on these results, we provide a reliable synthetic route to attain high-quality porous multilayers in which the effect of imperfections is minimized and whose Bragg diffraction can be precisely tuned over the entire visible and near-infrared spectrum. We present a systematic study of the effect of the acceleration ramp and final rotation speed over the structural and optical quality of these materials. This allows us to relate the structural variations observed with the different relative importance of fluid flow and solvent evaporation on the thinning of each layer in the stack for the different deposition conditions employed.
在此，我们详细分析了旋涂工艺对基于纳米颗粒的一维光子晶体光学性质的影响。基于这些结果，我们提供了一条可靠的合成路线，以获得高质量的多孔多层膜，其中缺陷的影响最小化，并且其布拉格衍射可以在整个可见光和近红外光谱范围内精确调谐。我们系统研究了加速斜坡和最终转速对这些材料结构和光学质量的影响。这使我们能够将观察到的结构变化与在不同沉积条件下堆叠中各层变薄过程中流体流动和溶剂蒸发的不同相对重要性联系起来。
