高荧光半导体纳米棒自组装成大尺度近晶相液晶结构的咖啡渍蒸发动力学研究
Self assembly of highly fluorescent semiconductor nanorods into large scale smectic liquid crystal structures by coffee stain evaporation dynamics
摘要:
我们将分散在溶剂中的纳米棒液滴沉积在衬底表面上,并让溶剂蒸发。我们发现,强大的接触线钉扎导致致密的纳米棒沉积内咖啡污渍的边缘,在那里我们观察到大规模的横向排序的纳米棒的长轴的棒的方向平行于接触线。我们通过偏光显微镜观察这些咖啡渍条纹的双折射,并且我们发现非常折射率的方向平行于纳米棒的长轴。
英文摘要:
We deposit droplets of nanorods dispersed in solvents on substrate surfaces and let the solvent evaporate. We find that strong contact line pinning leads to dense nanorod deposition inside coffee stain fringes, where we observe large-scale lateral ordering of the nanorods with the long axis of the rods oriented parallel to the contact line. We observe birefringence of these coffee stain fringes by polarized microscopy and we find the direction of the extraordinary refractive index parallel to the long axis of the nanorods.
机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。