反蛋白石纳米晶超晶格薄膜

Inverse Opal Nanocrystal Superlattice Films.

作者信息

Saunders Aaron E, Shah Parag S, Sigman Michael B, Hanrath Tobias, Hwang Ha Soo, Lim Kwon T, Johnston Keith P, Korgel Brian A

机构信息

Department of Chemical Engineering and Texas Materials Institute, Center for Nano- and Molecular Science and Technology, The University of Texas, Austin, Texas 78712, and Department of Imaging Information Science & Engineering, Pukyong National University, Pusan, Korea.

出版信息

Nano Lett. 2004 Oct;4(10):1943-1948. doi: 10.1021/nl048846e.

DOI:10.1021/nl048846e

PMID:28937767

Abstract

We describe the single-step self-organization of nanocrystal superlattice films infused with spatially ordered arrays of micrometer-size pores. In a humid atmosphere, water droplets condense on the surface of evaporating thin-film solutions of nanocrystals. Nanocrystals coated with the appropriate ligands stabilize the water droplets, allowing them to grow to uniform size and ultimately pack into very ordered arrays. The droplets provide a temporary template that casts an ordered macroporous nanocrystal film. This process could serve as a reliable bottom-up self-assembly approach for fabricating two-dimensional waveguides with tunable optical properties for single-chip integration of photonic and electronic technologies.

摘要

我们描述了注入微米级尺寸孔的空间有序阵列的纳米晶体超晶格薄膜的单步自组装过程。在潮湿的大气中，水滴在纳米晶体蒸发薄膜溶液的表面凝结。涂有适当配体的纳米晶体使水滴稳定，使其生长到均匀大小并最终堆积成非常有序的阵列。这些水滴提供了一个临时模板，用于浇铸有序的大孔纳米晶体薄膜。这一过程可作为一种可靠的自下而上的自组装方法，用于制造具有可调光学特性的二维波导，以实现光子和电子技术的单芯片集成。