Effect of Layer Thickness and Preparation Conditions on the Properties and Ethanol Sensitivity of ZnSe Thin Films

ABSTRACTNanocomposite Ti/Al multilayered thin films have been deposited by magnetron sputtering. These multilayers exhibit interesting structural transitions on reducing the layer thickness of both Ti and Al. Ti transforms from its bulk stable hep structure to fee and Al transforms from fee to hep. The effect of ratio of Ti layer thickness to Al layer thickness on the structural transitions has been investigated for a constant bilayer periodicity of 10 nm by considering three different multilayers: 7.5 nm Ti / 2.5 nm Al, 5 nm Ti / 5 nm Al and 2.5 nm Ti / 7.5 nm Al. The experimental results have been qualitatively explained on the basis of a thermodynamic model. Preliminary experimental results of interfacial reactions in Ti/Al bilayers resulting in the formation of Ti-aluminides are also presented in the paper.

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Room‐temperature excitonic optical nonlinearities of molecular beam epitaxially grown ZnSe thin films

Applied Physics Letters ◽

10.1063/1.99513 ◽

1988 ◽

Vol 52 (3) ◽

pp. 182-184 ◽

Cited By ~ 57

Author(s):

N. Peyghambarian ◽

S. H. Park ◽

S. W. Koch ◽

A. Jeffery ◽

J. E. Potts ◽

...

Keyword(s):

Thin Films ◽

Room Temperature ◽

Molecular Beam ◽

Optical Nonlinearities ◽

Znse Thin Films

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Control of morphology (ZrN crystallite size and SiNx layer thickness) in Zr–Si–N nanocomposite thin films

Surface and Coatings Technology ◽

10.1016/j.surfcoat.2007.09.003 ◽

2008 ◽

Vol 202 (11) ◽

pp. 2278-2281 ◽

Cited By ~ 19

Author(s):

C.S. Sandu ◽

R. Sanjinés ◽

F. Medjani

Keyword(s):

Thin Films ◽

Crystallite Size ◽

Layer Thickness ◽

Nanocomposite Thin Films ◽

Sinx Layer

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Effect of substrate temperature on structural properties of thermally evaporated ZnSe thin films of different thickness

Journal of Physics Conference Series ◽

10.1088/1742-6596/114/1/012048 ◽

2008 ◽

Vol 114 ◽

pp. 012048 ◽

Cited By ~ 2

Author(s):

S Chaliha ◽

M N Borah ◽

P C Sarmah ◽

A Rahman

Keyword(s):

Thin Films ◽

Substrate Temperature ◽

Structural Properties ◽

Znse Thin Films ◽

Different Thickness

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Effects of Synthesis Parameters on Controllable Growth of Highly-Ordered TiO2 Nanotube Arrays

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.284-286.791 ◽

2011 ◽

Vol 284-286 ◽

pp. 791-795 ◽

Cited By ~ 2

Author(s):

Shi Pu Li ◽

Shi Wei Lin ◽

Jian Jun Liao ◽

Dan Hong Li ◽

Yang Cao ◽

...

Keyword(s):

Layer Thickness ◽

Nanotube Arrays ◽

Mixed Electrolyte ◽

Preparation Conditions ◽

Photoelectrical Properties ◽

Titania Nanotube Arrays ◽

Titania Nanotube ◽

Controllable Growth ◽

Polishing Fluid ◽

Abrasive Paper

Titania nanotube arrays were fabricated in deionize water and glycerol mixed electrolyte containing a certain amount of NH4F. Three different polishing methods were used for pretreatment of Ti substrates: polished by hand with abrasive paper, by polishing machine, or by chemical polishing fluid (HF:HNO3=1:4, in volumetric ratio). The morphology of three different samples were imaged by scanning electron microscopy, and their photoelectrical properties were studied as well. Experimental results showed that Titania nanotube arrays grown on the Ti substrate and polished by polishing fluid has highly-ordered and well-defined nanotube structure. The effects of anodization potential and duration on synthesis of highly-ordered TiO2nanotubes were also studied in this paper. Both the layer thickness and nanotube diameter linearly increase with the increasing potential. The layer thickness also increases with prolongation of anodization time. By optimizing the preparation conditions, we can successfully control the geometrical structure of TiO2nanotube arrays with diameters in the range between 50 and 200 nm and the layer thickness between 800 and 2000 nm.

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