Nanorods of Tellurium: Synthesis and Self-Assembly

2006 ◽  
Vol 6 (3) ◽  
pp. 719-725 ◽  
Author(s):  
Sudip K. Batabyal ◽  
C. Basu ◽  
A. R. Das ◽  
G. S. Sanyal
Keyword(s):  
Hydrogen Peroxide ◽  
Self Assembly ◽  
Solution Phase ◽  
Simple Solution ◽  
Experimental Conditions ◽  
Oxidizing Agents ◽  
Phase Approach ◽  
Size And Shape

A simple solution phase approach is described to prepare tellurium nanorods which undergo morphological modifications to yield different microstructures under varied experimental conditions. The morphology of the prepared products is drastically altered in presence of a few oxidizing agents such as sodium oxychloride (NaOCl), hydrogen peroxide (H2O2) etc. The effects of poly (sodium 4-styrene sulphonate) (PSS) and Isooctyl phenoxy poly oxyethanol (TritonX-100) on the size and shape of the products in presence of air/NaOCl have also been monitored.

A simple solution-phase approach to synthesize high quality ternary AgInSe2 and band gap tunable quaternary AgIn(S1−xSex)2 nanocrystals

Nanoscale ◽  
2014 ◽  
Vol 6 (12) ◽  
pp. 6782 ◽  
Author(s):  
Tianyu Bai ◽  
Chunguang Li ◽  
Feifei Li ◽  
Lan Zhao ◽  
Zhaorui Wang ◽  
...  
Keyword(s):  
Band Gap ◽  
Solution Phase ◽  
Simple Solution ◽  
High Quality ◽  
Phase Approach

Controlling Synthesis of Copper Nanorods and Triangular Nanoplates

2009 ◽  
Vol 4 ◽  
pp. 145-152 ◽  
Author(s):  
Xiu Wen Zheng
Keyword(s):  
Aqueous Solution ◽  
Ascorbic Acid ◽  
Solution Phase ◽  
Simple Solution ◽  
Anisotropic Growth ◽  
One Dimensional ◽  
Phase Approach ◽  
Self Assembled ◽  
Copper Nanorods

Copper nanorods and triangular nanoplates have been successfully generated by via a simple solution-phase approach by reducing CuCl2 with L-ascorbic acid (AsA) in aqueous solution in the presence of cetyltgrimethlammonium bromide (CTAB). The formation of self-assembled microstructures of CTAB molecules in aqueous solution is suggested to account for the anisotropic growth of one-dimensional copper nanorods and triangular nanoplates.

Synthesis and piezoelectric properties of well-aligned ZnO nanowire arrays via a simple solution-phase approach

2009 ◽  
Vol 97 (4) ◽  
pp. 869-876 ◽  
Author(s):  
J. Zhang ◽  
M. K. Li ◽  
L. Y. Yu ◽  
L. L. Liu ◽  
H. Zhang ◽  
...  
Keyword(s):  
Piezoelectric Properties ◽  
Nanowire Arrays ◽  
Solution Phase ◽  
Simple Solution ◽  
Zno Nanowire ◽  
Phase Approach ◽  
Zno Nanowire Arrays

scholarly journals Impact of two disinfectants on detachment of Enterococcus faecalis from polythene in aquatic microcosm

2016 ◽  
Vol 7 (1) ◽  
Author(s):  
C. Lontsi Djimeli ◽  
A. Tamsa Arfao ◽  
V Rossi ◽  
N Nsulem ◽  
V Raspal ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Cell Adhesion ◽  
Enterococcus Faecalis ◽  
Sodium Hypochlorite ◽  
Growth Phases ◽  
Planktonic Cells ◽  
Stationary Growth ◽  
Experimental Conditions ◽  
The Impact ◽  
Aquatic Microcosm

<p><strong>After cell adhesion processes in microcosm, the impact of sodium hypochlorite (NaOCl) and hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>) on the detachment of <em>Enterococcus faecalis </em>from polythene fragments immersed in water under stationary and dynamic conditions was assessed. The abundance of planktonic cells was also evaluated. The density of <em>E. faecalis</em> adhered in absence of disinfectant fluctuated between 2 and 4 units (Log CFU/cm<sup>2</sup>). </strong><strong>After living in disinfected water, </strong><strong>the density of <em>E. faecalis</em> remained adhered to polythene sometimes reached 2 units (Log CFU/Cm<sup>2</sup>)</strong><strong>. </strong><strong>This highest abundance of cells remained adhered was recorded with cells coming from the lag, exponential and stationary growth phases in water treated with 0.5‰ NaOCl. In H<sub>2</sub>O<sub>2</sub> disinfected water, the highest value was recorded at all cells growth phases with 5‰ H<sub>2</sub>O<sub>2 </sub>concentration. Adhered <em>E. faecalis</em> cells have been sometimes completely or partially decimated respectively by NaOCl and H<sub>2</sub>O<sub>2</sub> treated water. Considering separately each experimental condition, it was noted that increasing the concentration of disinfectant caused a significant decrease (P≤0.01) in abundance of cells stay adhered after living in water disinfected by the two disinfectants. Changes in disinfectant concentrations in different experimental conditions had an impact on the detachment of <em>E. faecalis</em> cells from the substrates. </strong></p>

scholarly journals Studies of the self-assembled growth mechanism on nanocrystalline silicon nanodots

2014 ◽  
Vol 6 (2) ◽  
Author(s):  
Samsudi Sakrani ◽  
Imam Sumpono ◽  
Nurul Aini Tarjudin ◽  
Zulkafli Othaman
Keyword(s):  
Self Assembly ◽  
Gas Flow ◽  
Nanocrystalline Silicon ◽  
Deposition Pressure ◽  
Experimental Conditions ◽  
Surface Energies ◽  
Corning Glass ◽  
Amorphous Si ◽  
A Minor ◽  
Solid Nucleation

Nanocrystalline silicon (nc-Si) nanodots have been grown on corning glass (7059) substrate using a self-assembly VHF-PECVD method under the following experimental conditions: Fixed deposition temperatures of 300/400 °C, deposition times 30/60 s, plasma power of 10 W, silane gas flow rate of 10 sccm, as well as deposition pressure of 10-2 torr. It is predicted that the onset of nucleation began immediately after the deposition and start to appear clearly after 20-60 s during which growth mechanisms occur. Essentially, the nanodots were formed onto the substrate in dome-like shapes by virtue of equilibrium surface energies, γLS, γLN andγNS. The associated liquid/solid nucleation mechanism was then simulated and related parameters were obtained: Free energy change per unit volume ΔGv ∼-104 Jmol-1; Surface energies per unit area, γLN = 1.44 Jm-2, γNS = 19 - 60 Jm-2 and γLS = 0.74 Jm-2; Critical energies ΔG* ∼10-15 J; Critical radii r* = 16 - 48 nm. These results were experimentally verified, in particular for selected critical radius r* less than 50 nm.Other measurements were also carried out: PL analysis gave bandgap energies ∼ 1.8-2.4 eV, whilst Raman spectra revealed the coexistence of nc-Si and amorphous Si. It is strongly suggested that, the nc-Si nanodot grown on glass substrate fulfills the Volmer-Weber growth mode with a minor modification.

High-Mobility Organic Transistors Based on Single-Crystalline Microribbons of Triisopropylsilylethynyl Pentacene via Solution-Phase Self-Assembly

2007 ◽  
Vol 19 (5) ◽  
pp. 678-682 ◽  
Author(s):  
D. H. Kim ◽  
D. Y. Lee ◽  
H. S. Lee ◽  
W. H. Lee ◽  
Y. H. Kim ◽  
...  
Keyword(s):  
Self Assembly ◽  
High Mobility ◽  
Solution Phase ◽  
Organic Transistors ◽  
Single Crystalline

Simple Solution-Phase Synthesis of Soluble CdS and CdSe Nanorods

2000 ◽  
Vol 12 (6) ◽  
pp. 1516-1518 ◽  
Author(s):  
Chia-Chun Chen ◽  
Chi-Yau Chao ◽  
Zon-Huan Lang
Keyword(s):  
Solution Phase ◽  
Simple Solution ◽  
Phase Synthesis ◽  
Solution Phase Synthesis ◽  
Cdse Nanorods
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