Influence of Precursor Solution Concentration on Zinc Oxide Nanostructures by Hydrothermal Growth

2014 ◽  
Vol 875-877 ◽  
pp. 562-566
Author(s):  
Zong Bo Huang ◽  
X.P. Zou ◽  
G.Q. Yang ◽  
X.M. Lv ◽  
C.L. Wei ◽  
...  
Keyword(s):  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Precursor Solution ◽  
Solution Concentration ◽  
Ammonia Solution ◽  
Zinc Nitrate ◽  
Hydrothermal Growth ◽  
Zinc Oxide Nanostructures ◽  
Oxide Nanostructures ◽  
Precursor Solution Concentration

In this paper, various ZnO nanostructures, such as rods, flowers were grown on indium-tin-oxide (ITO) substrates by hydrothermal growth at low temperature, using the different concentrations of equimolar (1:1) zinc nitrate (Zn (NO3)26H2O) and methenamine (C6H12N4) mixed as precursors solution, and adding ammonia solution to control the pH levels. SEM, XRD were utilized to characterize morphologies and crystal structures of ZnO. It was indicated that the concentration of precursor solution leads to the significantly changes in the nanostructured ZnO. The possible growth mechanism is discussed in this work.

Influence of Ammonia Solution on Zinc Oxide Nanostructures by Hydrothermal Growth

2014 ◽  
Vol 875-877 ◽  
pp. 1549-1553 ◽  
Author(s):  
Z.B. Huang ◽  
X.P. Zou ◽  
G.Q. Yang ◽  
X.M. Lv ◽  
C.L. Wei ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Zno Nanorods ◽  
Precursor Solution ◽  
Ammonia Solution ◽  
Zinc Nitrate ◽  
Hydrothermal Growth ◽  
Zinc Oxide Nanostructures ◽  
Oxide Nanostructures

In previous work, ZnO nanorods and nanoflowers were synthesized on indium-tin-oxide (ITO) substrates by hydrothermal growth at low temperature ,using the different concentrations of equimolar (1:1) zinc nitrate Zn (NO3)26H2O and methenamine (C6H12N4) mixed as precursors solution, and adding ammonia solution to control the pH levels. In this paper, for comparison, the same experiment without ammonia solution was also discussed. SEM, XRD were utilized to characterize morphologies and crystal structures of ZnO. It was indicated that the pH of precursor solution leads to the significantly changes in the nanostructured ZnO. Besides, a hierarchical structure of some of the micro/nanotubes was obtained .The possible growth mechanism is discussed in this work.

Tunable morphologies of indium tin oxide nanostructures using nanocellulose templates

RSC Advances ◽  
2015 ◽  
Vol 5 (125) ◽  
pp. 103680-103685 ◽  
Author(s):  
Yuan Lu ◽  
Joseph E. Poole II ◽  
Tolga Aytug ◽  
Harry M. Meyer III ◽  
Soydan Ozcan
Keyword(s):  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Oxide Nanostructures ◽  
Ito Nanoparticles

Nanocellulose fibrils have been used as sacrificial templates for synthesizing ITO nanoparticles with controllable morphology.

scholarly journals Impact of Perovskite Composition on Film Formation Quality and Photophysical Properties for Flexible Perovskite Solar Cells

Molecules ◽  
2020 ◽  
Vol 25 (3) ◽  
pp. 732 ◽  
Author(s):  
Guangdong Li ◽  
Xiaoping Zou ◽  
Jin Cheng ◽  
Dan Chen ◽  
Yujun Yao ◽  
...  
Keyword(s):  
Solar Cells ◽  
Film Formation ◽  
Photophysical Properties ◽  
Perovskite Solar Cells ◽  
Precursor Solution ◽  
Solution Concentration ◽  
Precursor Solution Concentration ◽  
Composition Optimization ◽  
A Site ◽  
Low Temperature Process

In recent years, flexible perovskite solar cells have drawn tremendous attention in the field of wearable devices, and optimization of perovskite composition plays an important role in improving film quality and photophysical properties. At present, some researchers have only studied A-site organic cations mixing or X-site halide anions mixing in the ABX3 structure of perovskite, but there are few reports on co-mixing of A-site and X-site ions in flexible perovskite solar cells. In this paper, we mainly try to study the effects of different concentrations of mixed formamidine methylamine halide (FAxMA1-xBrxClyI1-x-y) precursor solutions on the quality and photophysical properties of perovskite films under low temperature process. We conclude that the film quality and photophysical properties reached the best results when the optimized precursor solution concentration was 60:6:6. The investigation on composition optimization in this experiment laid the foundation for the improvement of the performance of flexible perovskite solar cells. We also use the results of this experiment to prepare flexible perovskite solar cells based on carbon electrodes, which are expected to be applied in other flexible optoelectronic or electro-optical devices.

Characterization of Urea versus HMTA in the Preparation of Zinc Oxide Nanostructures by Solution-Immersion Method Grown on Gold-Seeded Silicon Substrate

2011 ◽  
Vol 364 ◽  
pp. 45-49 ◽  
Author(s):  
Azlinda Ab Azlinda ◽  
Zuraida Khusaimi ◽  
Saifollah Abdullah ◽  
Mohamad Rusop
Keyword(s):  
Zinc Oxide ◽  
Silicon Substrate ◽  
High Surface ◽  
High Surface Area ◽  
Zinc Nitrate ◽  
Nitrate Hexahydrate ◽  
Zno Nanostructures ◽  
Zinc Oxide Nanostructures ◽  
Immersion Method ◽  
Oxide Nanostructures

Zinc oxide (ZnO) nanostructures prepared by immersion method were successfully grown on gold-seeded silicon substrate using Zinc nitrate hexahydrate (Zn (NO3)2.6H2O) as a precursor, separately stabilized with non-toxic urea (CH4N2O) and hexamethylene tetraamine (HMTA). The effect of changing the stabilizer of ZnO solution on the crystal structure, morphology and photoluminescence properties of the resultant ZnO is investigated. X-ray diffraction of the synthesized ZnO shows hexagonal zincite structure. The morphology of the ZnO was characterized using Field Emission Scanning Electron Microscope (FESEM). The growth of ZnO using urea as stabilizer shows clusters of ZnO nanoflower with serrated broad petals were interestingly formed. ZnO in HMTA showed growth of nanorods. The structures has high surface area, is a potential metal oxide nanostructures to be develop for optoelectronic devices and chemical sensors. The formation of ZnO nanostructures is found to be significantly affected by the stabilizer.

ZnO Nanorod Arrays and Nanowires by Hydrothermal Growth

2010 ◽  
Vol 123-125 ◽  
pp. 811-814 ◽  
Author(s):  
Yi Su ◽  
Xiao Ping Zou ◽  
Xiang Min Meng ◽  
Gong Qing Teng ◽  
Gang Qiang Yang ◽  
...  
Keyword(s):  
Zno Nanorods ◽  
Ammonia Solution ◽  
Zinc Nitrate ◽  
Zinc Nitrate Hexahydrate ◽  
Hydrothermal Growth ◽  
Nitrate Hexahydrate ◽  
Zno Nanorod ◽  
Nanorod Arrays ◽  
Zno Nanorod Arrays ◽  
Facile Fabrication

We are reporting here on an inexpensive and facile fabrication method for ZnO nanorod arrays by hydrothermal growth at low temperature (90°C). In our experiment, ZnO nanostructures were grown on glass substrate using an equimolar (0.1M) aqueous solution of Zn(NO3)2•6H2O (zinc nitrate hexahydrate) and C6H12N4 (HMTA) as precursors solution, and using ammonia solution to controlling the pH levels. It enable easily obtained arrayed ZnO nanorods on substrate, and nanowires which grown on nanorod arrays were identified after about 1 month in the air. The growth process of nanorods and the formation mechanism of nanowires were investigated.

Position-Controlled Hydrothermal Growth of Periodic Individual ZnO Nanorod Arrays on Indium Tin Oxide Substrate

2014 ◽  
Vol 118 (35) ◽  
pp. 20613-20619 ◽  
Author(s):  
Tonghui Yang ◽  
Ke Cheng ◽  
Gang Cheng ◽  
Binbin Hu ◽  
Shujie Wang ◽  
...  
Keyword(s):  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Hydrothermal Growth ◽  
Zno Nanorod ◽  
Nanorod Arrays ◽  
Zno Nanorod Arrays ◽  
Oxide Substrate ◽  
Indium Tin Oxide Substrate
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