DataVXACS Applied Nano MaterialsPaper
journal article·2019-02-22

Understanding Non-Twinning Zigzag Nanowire Formation for New Nanoscale Devices

Hui Wang, Jian-Tao Wang, Xiao-Hong Zhang, Chun-Sing Lee

ACS Applied Nano Materials· Volume 2· Issue 2
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Source abstract

Abstract

Periodic or occasional kinks have been widely observed in various semiconductor nanowires grown via the classical vapor–liquid–solid (VLS) approach. These kinks have been explained thus far by twinning-related mechanisms. This work reports zigzag Si nanowires with long periodic lengths (∼100–1000 nm) and diverse turning angles (∼75–165°). It was found that many features of the nanowires cannot be explained by the layer-by-layer growth model typically used for describing nanowire growth in VLS processes but can be explained by periodic oscillation of a liquid–metal droplet at the growing tip of a nanowire. This work reveals the asymmetry VLS growth mechanism for periodic zigzag nanowires. The new mechanism can be applied to control the direction and length in zigzag nanowires which could be used for a new generation of nanoscale devices or applied to avoid the occurrence of kinks where straight nanowires are required.
Source: openalex_inverted_index · Quality: baseline

Research context

NanomaterialsElectronic materials

OpenAlex topics: Nanowire Synthesis and Applications · Anodic Oxide Films and Nanostructures · Fluid Dynamics and Thin Films

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Key Laboratory of Photochemical Conversion and Optoelectronic Materials and CityU-CAS Joint Laboratory of Functional Materials and Devices, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, People’s Republic of China

China Automotive Battery Research Institute, Beijing 100088, People’s Republic of China

Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory of Carbon-based Functional Materials and Devices, and Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou, Jiangsu 215123, People’s Republic of China

Center of Super-Diamond and Advanced Films (COSDAF) and Department of Chemistry, City University of Hong Kong, Hong Kong SAR, People’s Republic of China

Funding

National Natural Science Foundation of China

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