2024-03-28T18:10:33Z
https://nagoya.repo.nii.ac.jp/oai
oai:nagoya.repo.nii.ac.jp:00031330
2023-01-16T04:24:53Z
320:321:322
Ammonia-Induced Seed Layer Transformations in a Hydrothermal Growth Process of Zinc Oxide Nanowires
Liu, Quanli
Yasui, Takao
Nagashima, Kazuki
Yanagida, Takeshi
Hara, Mitsuo
Horiuchi, Masafumi
Zhu, Zetao
Takahashi, Hiromi
Shimada, Taisuke
Arima, Akihide
Baba, Yoshinobu
open access
“This document is the Accepted Manuscript version of a Published Work that appeared in final form in [The Journal of Physical Chemistry C], copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see [https://pubs.acs.org/articlesonrequest/AOR-DJREJSNXGNHDVTWNZ9XD].”
Ammonia is a well-known additive to promote crystal growth in hydrothermal synthesis of ZnO nanowires. Although the effect of ammonia on the nanowire growth has been intensively investigated, its influence on the seed layer, which governs the initial nanowire growth, is rarely discussed. Here, we demonstrate that ammonia strongly affects the seed layer as well as the following nanowire growth. On increasing the ammonia concentration, the nanowire density first increases and then decreases, while the nanowire growth rate keeps increasing. Experimental results and thermodynamic calculations of the initial growth process reveal that the transformation of the seed layer induced by ammonia prior to nucleation critically determines the nanowire density and thus also influences the following nanowire growth. Present results highlight the critical importance of discussing the variation of seed layers in ammonia-involved hydrothermal synthesis and suggest a novel seed engineering approach for tailoring the ZnO nanowire growth.
ファイル公開:2021-09-17
ACS Publications
2020-09-17
eng
journal article
AM
http://hdl.handle.net/2237/00033510
https://nagoya.repo.nii.ac.jp/records/31330
https://doi.org/10.1021/acs.jpcc.0c05490
1932-7447
The Journal of Physical Chemistry C
124
37
20563
20568
https://nagoya.repo.nii.ac.jp/record/31330/files/20200821_Manuscript.pdf
application/pdf
639.8 kB
2021-09-17