Tailoring Nucleation at Two Interfaces Enables Single Crystalline NiO Nanowires via Vapor-Liquid-Solid Route.
Here we show a rational strategy to fabricate single crystalline NiO nanowires via a vapor-liquid-solid (VLS) route, which essentially allows us to tailor the diameter and the spatial position. Our strategy is based on the suppression of the nucleation at vapor-solid (VS) interface, which promotes nucleation only at the liquid-solid (LS) interface. Manipulating both the supplied material fluxes (oxygen and metal) and the growth temperature enables enhancement of the nucleation only at the LS interface. Furthermore, this strategy allows us to reduce the growth temperature of single crystalline NiO nanowires down to 550 °C, which is the lowest growth temperature so far reported.
The Institute for Materials Chemistry and Engineering, Kyushu University , 6-1 Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan.
Kazuki
K
Nagashima
The Institute of Scientific and Industrial Research, Osaka University , 8-1 Mihogaoka Ibaraki, Osaka 567-0047, Japan.
Hideto
H
Yoshida
National Nanotechnology Center (NANOTEC), NSTDA , 111 Thailand Science Park, Pathumthani 12120, Thailand.
Annop
A
Klamchuen
The Institute for Materials Chemistry and Engineering, Kyushu University , 6-1 Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan.
Masaki
M
Kanai
The Institute for Materials Chemistry and Engineering, Kyushu University , 6-1 Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan.
Gang
G
Meng
The Institute for Materials Chemistry and Engineering, Kyushu University , 6-1 Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan.
Fuwei
F
Zhuge
The Institute for Materials Chemistry and Engineering, Kyushu University , 6-1 Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan.
Yong
Y
He
The Institute for Materials Chemistry and Engineering, Kyushu University , 6-1 Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan.
Hiroshi
H
Anzai
The Institute for Materials Chemistry and Engineering, Kyushu University , 6-1 Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan.
Zetao
Z
Zhu
The Institute for Materials Chemistry and Engineering, Kyushu University , 6-1 Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan.
Masaru
M
Suzuki
The Institute for Materials Chemistry and Engineering, Kyushu University , 6-1 Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan.
Mickaël
M
Boudot
The Institute of Scientific and Industrial Research, Osaka University , 8-1 Mihogaoka Ibaraki, Osaka 567-0047, Japan.
Seiji
S
Takeda
The Institute for Materials Chemistry and Engineering, Kyushu University , 6-1 Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan.
Takeshi
T
Yanagida
memristive switching; nickel oxide nanowire; single crystalline oxide nanowire; vapor flux control; vapor−solid−liquid process