Smith Stephanie C, Bryks Whitney, Tao Andrea R
Langmuir. 2019 Feb 26;35(8):2887-2897. doi: 10.1021/acs.langmuir.8b01043. Epub 2018 Jun 15.
In this feature article, we discuss our recent work in the synthesis of novel supramolecular precursors for semiconductor nanocrystals. Metal chalcogenolates that adopt liquid-crystalline phases are employed as single-source precursors that template the growth of shaped solid-state nanocrystals. Supramolecular assembly is programmed by both precursor chemical composition and molecular parameters such as the alkyl chain length, steric bulk, and the intercalation of halide ions. Here, we explore the various design principles that enable the rational synthesis of these single-source precursors, their liquid-crystalline phases, and the various semiconductor nanocrystal products that can be generated by thermolysis, ranging from highly anisotropic two-dimensional nanosheets and nanodisks to spheres.
在这篇专题文章中，我们讨论了我们近期在合成用于半导体纳米晶体的新型超分子前驱体方面的工作。采用液晶相的金属硫属化合物被用作单源前驱体，以模板化成型固态纳米晶体的生长。超分子组装由前驱体化学成分以及诸如烷基链长度、空间位阻和卤离子插层等分子参数来编程。在此，我们探索了各种设计原则，这些原则能够实现这些单源前驱体及其液晶相的合理合成，以及通过热解能够生成的各种半导体纳米晶体产物，从高度各向异性的二维纳米片和纳米盘到球体。
