Initialization of Nanowire or Cluster Growth Critically Controlled by the Effective V/III Ratio at the Early Nucleation Stage
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Initialization of Nanowire or Cluster Growth Critically Controlled by the Effective V/III Ratio at the Early Nucleation Stage. / Chen, Chen; Chu, Yanmeng; Zhang, Linjun; Lin, Haojun; Fang, Wenzhang; Zhang, Zheyu; Zha, Chaofei; Wang, Kejia; Yang, Hui; Yu, Xuezhe; Gott, James A.; Aagesen, Martin; Cheng, Zhiyuan; Huo, Suguo; Liu, Huiyun; Sanchez, Ana M.; Zhang, Yunyan.
I: Journal of Physical Chemistry Letters, Bind 14, Nr. 19, 04.05.2023, s. 4433-4439.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Initialization of Nanowire or Cluster Growth Critically Controlled by the Effective V/III Ratio at the Early Nucleation Stage
AU - Chen, Chen
AU - Chu, Yanmeng
AU - Zhang, Linjun
AU - Lin, Haojun
AU - Fang, Wenzhang
AU - Zhang, Zheyu
AU - Zha, Chaofei
AU - Wang, Kejia
AU - Yang, Hui
AU - Yu, Xuezhe
AU - Gott, James A.
AU - Aagesen, Martin
AU - Cheng, Zhiyuan
AU - Huo, Suguo
AU - Liu, Huiyun
AU - Sanchez, Ana M.
AU - Zhang, Yunyan
PY - 2023/5/4
Y1 - 2023/5/4
N2 - For self-catalyzed nanowires (NWs), reports on how the catalytic droplet initiates successful NW growth are still lacking, making it difficult to control the yield and often accompanying a high density of clusters. Here, we have performed a systematic study on this issue, which reveals that the effective V/III ratio at the initial growth stage is a critical factor that governs the NW growth yield. To initiate NW growth, the ratio should be high enough to allow the nucleation to extend to the entire contact area between the droplet and substrate, which can elevate the droplet off of the substrate, but it should not be too high in order to keep the droplet. This study also reveals that the cluster growth between NWs is also initiated from large droplets. This study provides a new angle from the growth condition to explain the cluster formation mechanism, which can guide high-yield NW growth.
AB - For self-catalyzed nanowires (NWs), reports on how the catalytic droplet initiates successful NW growth are still lacking, making it difficult to control the yield and often accompanying a high density of clusters. Here, we have performed a systematic study on this issue, which reveals that the effective V/III ratio at the initial growth stage is a critical factor that governs the NW growth yield. To initiate NW growth, the ratio should be high enough to allow the nucleation to extend to the entire contact area between the droplet and substrate, which can elevate the droplet off of the substrate, but it should not be too high in order to keep the droplet. This study also reveals that the cluster growth between NWs is also initiated from large droplets. This study provides a new angle from the growth condition to explain the cluster formation mechanism, which can guide high-yield NW growth.
KW - V SEMICONDUCTOR NANOWIRES
KW - GAAS NANOWIRES
KW - SOLAR-CELLS
KW - SILICON
KW - PHASE
KW - MECHANISM
KW - DYNAMICS
KW - DESIGN
KW - ARRAYS
KW - SIOX
U2 - 10.1021/acs.jpclett.3c00484
DO - 10.1021/acs.jpclett.3c00484
M3 - Journal article
C2 - 37141511
VL - 14
SP - 4433
EP - 4439
JO - Journal of Physical Chemistry Letters
JF - Journal of Physical Chemistry Letters
SN - 1948-7185
IS - 19
ER -
ID: 347755624