Atomic-Scale Choreography of Vapor–Liquid–Solid Nanowire Growth,Accounts of Chemical Research

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Atomic-Scale Choreography of Vapor–Liquid–Solid Nanowire Growth
Accounts of Chemical Research ( IF 16.4 ) Pub Date : 2017-11-29 00:00:00 , DOI: 10.1021/acs.accounts.7b00392
Martin Ek _{1,

2} , Michael A. Filler ₁

Affiliation

Functional materials and devices require nanoscale control of morphology, crystal structure, and composition. Vapor–liquid–solid (VLS) crystal growth and its related growth modes enable the synthesis of 1D nanostructures, commonly called “nanowires”, where the necessary nanoscale heterogeneity can be encoded axially. During the VLS process, a seed particle collects atoms and directs the nucleation of crystalline material. Modulating the delivery of growth species or conditions permits compositional and/or structural encoding. A range of materials and devices (e.g., for electronics, photonics, thermal transport, and bioprobes) have been produced by VLS growth, but plenty of challenges remain: many desirable structures cannot currently be made, and even for those structures that can be made, the parameter window—in terms of, e.g., temperatures and pressures—is often narrow. Moreover, we are quite far from ab initio determination of which growth conditions should be used or even if a desired structure is fundamentally achievable within the VLS framework.

中文翻译：

汽-液-固纳米线生长的原子尺度编排

功能材料和设备需要对形态，晶体结构和组成进行纳米级控制。汽-液-固（VLS）晶体生长及其相关的生长模式可以合成一维纳米结构，通常称为“纳米线”，其中可以轴向编码必要的纳米级异质性。在VLS过程中，种子粒子收集原子并引导晶体材料的成核。调节生长物种或条件的递送允许组成和/或结构编码。VLS的发展已经生产出了各种各样的材料和设备（例如，用于电子，光子学，热传输和生物探针的材料），但是仍然存在许多挑战：当前无法制造许多理想的结构，甚至对于那些可以制造的结构，例如，参数窗口温度和压力通常很窄。此外，我们还没有从头开始确定应该使用哪种生长条件，或者即使在VLS框架内基本可以实现所需的结构，也离我们很远。

更新日期：2017-11-29

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