Initialization of Nanowire or Cluster Growth Critically Controlled by the Effective V/III Ratio at the Early Nucleation Stage

• DOI: 10.1021/acs.jpclett.3c00484
• Publication Date: 2023-05-04T19:19:21Z
• Authors: Chen Chen; Yanmeng Chu; Linjun Zhang; Haojun Lin; Wenzhang Fang; Zheyu Zhang; Chaofei Zha; Kejia Wang; Hui Yang; Xuezhe Yu; James A. Gott; Martin Aagesen; Zhiyuan Cheng; Suguo Huo; Huiyun Liu; Ana M. Sanchez; Yunyan Zhang
• Keywords: Initialization

For self-catalyzed nanowires (NWs), reports on how the catalytic droplet initiates successful NW growth are still lacking, making it difficult to control yield and often accompanying a high density of clusters. Here, we have performed systematic study this issue, which reveals that effective V/III ratio at initial stage is critical factor governs yield. To initiate growth, should be enough allow nucleation extend entire contact area between substrate, can elevate off but not too in order keep droplet. This also cluster NWs initiated from large droplets. provides new angle condition explain formation mechanism, guide high-yield growth.