Growth mechanism of ZnO nanostructures produced by ultraviolet and visible laser ablation

2017 ◽  
Vol 423 ◽  
pp. 977-982 ◽  
Author(s):  
A.Og. Dikovska ◽  
D. Pallotti ◽  
S. Lettieri ◽  
G.B. Atanasova ◽  
G.V. Avdeev ◽  
...  
Keyword(s):  
Laser Ablation ◽  
Growth Mechanism ◽  
Zno Nanostructures ◽  
Visible Laser

SHAPE EVOLUTION IN ONE-DIMENSIONAL ZnO NANOSTRUCTURES GROWN FROM ZnO NANOPOWDER SOURCE: VAPOR–LIQUID–SOLID VERSUS VAPOR–SOLID GROWTH MECHANISMS

2011 ◽  
Vol 10 (01n02) ◽  
pp. 75-79 ◽  
Author(s):  
SOUMEN DHARA ◽  
P. K. GIRI
Keyword(s):  
Growth Mechanism ◽  
Growth Temperature ◽  
Shape Evolution ◽  
Zno Nanostructures ◽  
Growth Mechanisms ◽  
Vapor Liquid Solid ◽  
One Dimensional ◽  
Zno Nanopowder ◽  
Simultaneous Growth ◽  
Vapor Liquid

Here we report on the growth and evolution of ZnO nanowires grown from ZnO nanopowder as a source material using a horizontal muffle furnace. The shape evolution has been studied with variation in growth temperature and zinc vapor pressure. The structural analysis on these nanostructures shows c-axis oriented aligned growth. Scanning electron microscopy imaging of these nanostructures revealed the shape evolution from nanowires to nanoribbons and then to nanorods as the growth temperature increases from 650°C to 870°C. At 650°C, only vertical nanowires have been observed and with increase in growth temperature nanowires transform to nanoribbons and then to nanorods at 870°C. And we also observed simultaneous growth of nanorods and nanoribbons under a specific growth condition. We believe that these nanowires and nanorods were formed by vapor–liquid–solid growth mechanism (catalyst-mediated growth), whereas nanoribbons were grown by vapor–solid growth mechanism (without the aid of a metal catalyst). We observed simultaneous occurrence of vapor–liquid–solid and vapor–solid growth mechanisms at a particular growth temperature. These ZnO nanowires exhibit bound exciton related UV emission at ~379 nm, and defect-emission band in the visible region. Possible growth mechanism, shape evolution, and simultaneous growth of two types of one-dimensional ZnO nanostructures under the same growth condition are discussed.

Heterogeneous growth mechanism of ZnO nanostructures and the effects of their morphology on optical and photocatalytic properties

CrystEngComm ◽  
2017 ◽  
Vol 19 (24) ◽  
pp. 3299-3312 ◽  
Author(s):  
Abdo Hezam ◽  
K. Namratha ◽  
Q. A. Drmosh ◽  
Bananakere Nanjegowda Chandrashekar ◽  
Kishor Kumar Sadasivuni ◽  
...  
Keyword(s):  
Growth Mechanism ◽  
Photocatalytic Properties ◽  
Zno Nanostructures

Surfactant-free precipitation synthesis, growth mechanism and photocatalytic studies of ZnO nanostructures

2015 ◽  
Vol 160 ◽  
pp. 259-262 ◽  
Author(s):  
Noor Izzati Md Rosli ◽  
Sze-Mun Lam ◽  
Jin-Chung Sin ◽  
Abdul Rahman Mohamed
Keyword(s):  
Growth Mechanism ◽  
Zno Nanostructures ◽  
Precipitation Synthesis

Nanofabrication of high throughput 30 nm hole 2D arrays by a simple visible laser ablation technique

2017 ◽  
Vol 420 ◽  
pp. 868-872 ◽  
Author(s):  
Kazushi Yamada ◽  
Chieko Narita ◽  
Ramanujam Kumaresan ◽  
Takuya Shinohara ◽  
Mitsuhiro Terakawa ◽  
...  
Keyword(s):  
Laser Ablation ◽  
High Throughput ◽  
Ablation Technique ◽  
Visible Laser ◽  
2D Arrays ◽  
Laser Ablation Technique

scholarly journals Growth mechanism of needle-shaped ZnO nanostructures over NiO-coated Si substrates

2006 ◽  
Vol 23 (6) ◽  
pp. 1068-1068 ◽  
Author(s):  
Tae Yun Kim ◽  
Seung Hyun Lee ◽  
Young Hwan Mo ◽  
Kee Suk Nahm ◽  
Ji Young Kim ◽  
...  
Keyword(s):  
Growth Mechanism ◽  
Zno Nanostructures ◽  
Si Substrates
Sign in / Sign up

Export Citation Format

Share Document