Preparation and Morphology of CdZnS Thin Films

2019 ◽  
Vol 18 (03n04) ◽  
pp. 1940060
Author(s):  
S. I. Sadovnikov
Keyword(s):  
Thin Films ◽  
Text Structure ◽  
Layer By Layer ◽  
Space Group ◽  
Synthesis Conditions ◽  
Layer Deposition ◽  
Two Phases ◽  
The Relationship ◽  
Selection Of ◽  
Deposition Conditions

Thin films based on limited solid solutions of cadmium and zinc sulfides have been synthesized by a one-stage epitaxial layer-by-layer deposition from an ammonium-containing aqueous solution of cadmium and zinc chlorides and thiocarbamide on a glass substrate. The thickness control of sulfide layers was carried out by selection of reagent concentrations and the deposition conditions. The relationship between the synthesis conditions of CdxZn[Formula: see text]S thin films and the size of sulfide nanoparticles in these films is established. The films contain two phases: hexagonal (space group [Formula: see text]) phase with [Formula: see text] structure of wurtzite type and cubic (space group [Formula: see text]-[Formula: see text]) phase with [Formula: see text] structure of sphalerite type. It is shown that the CdxZn[Formula: see text]S film consists of separate [Formula: see text][Formula: see text]nm agglomerates which are a collection of smaller nanometer-sized particles. The dependence of the band gap of the synthesized films on their thickness is found.

Selection of post-growth treatment parameters for atomic layer deposition of structurally disordered TiO2 thin films

2008 ◽  
Vol 354 (2-9) ◽  
pp. 404-408 ◽  
Author(s):  
S. Dueñas ◽  
H. Castán ◽  
H. García ◽  
L. Bailón ◽  
K. Kukli ◽  
...  
Keyword(s):  
Thin Films ◽  
Atomic Layer Deposition ◽  
Atomic Layer ◽  
Tio2 Thin Films ◽  
Layer Deposition ◽  
Selection Of

Effects of layer-by-layer deposition on the structural and optical characteristics of thin films

2009 ◽  
Author(s):  
Petronela Prepelita ◽  
R. Medianu ◽  
F. Garoi ◽  
A. Moldovan ◽  
A. M. Vlaicu
Keyword(s):  
Thin Films ◽  
Optical Characteristics ◽  
Layer By Layer ◽  
Layer Deposition

Structure of unsolvated magnesium borohydride Mg(BH4)2

2007 ◽  
Vol 63 (4) ◽  
pp. 561-568 ◽  
Author(s):  
Jae-Hyuk Her ◽  
Peter W. Stephens ◽  
Yan Gao ◽  
Grigorii L. Soloveichik ◽  
Job Rijssenbeek ◽  
...  
Keyword(s):  
High Temperature ◽  
Complex Networks ◽  
Atomic Structure ◽  
Hexagonal Phase ◽  
Orthorhombic Phase ◽  
Hydrogen Release ◽  
Space Group ◽  
Synthesis Conditions ◽  
Two Phases ◽  
Antisite Disorder

We have determined the structures of two phases of unsolvated Mg(BH4)2, a material of interest for hydrogen storage. One or both phases can be obtained depending on the synthesis conditions. The first, a hexagonal phase with space group P61, is stable below 453 K. Upon heating above that temperature it transforms to an orthorhombic phase, with space group Fddd, stable to 613 K at which point it decomposes with hydrogen release. Both phases consist of complex networks of corner-sharing tetrahedra consisting of a central Mg atom and four BH4 units. The high-temperature orthorhombic phase has a strong antisite disorder in the a lattice direction, which can be understood on the basis of atomic structure.

Rheed Intensity Oscillation During Layer-by-Layer Growth of Bi-Sr-Ca-Cu-O Thin Films

1992 ◽  
Vol 275 ◽  
Author(s):  
K. Yoshikawa ◽  
N. Sasaki
Keyword(s):  
Thin Films ◽  
Buffer Layer ◽  
High Energy ◽  
Layer Growth ◽  
Layer By Layer ◽  
Two Dimensional ◽  
Growth Interruption ◽  
Layer Deposition ◽  
Unit Cells ◽  
Layered Growth

ABSTRACTUsing in-situ reflection high-energy electron diffraction (RHEED), we studied the growth of Bi-Sr-Ca-Cu-O (BSCCO) thin films prepared by reactive evaporation using layer-by-layer deposition. Bi2Sr2CaCu2Ox(2212) tends to be grown three-dimensionally if it is grown directly on (100) SrTiO3, in contrast to Bi2Sr2CuOx(2201) which is easily grown two-dimensionally on SrTiO3. Two-dimensional 2212 growth can be realized, if a buffer layer of 2201 is deposited on (100) SrTiO3 and growth interruption is utilized after SrO layer deposition. A buffer layer of only two 2201 unit cells improved the surface crystallinity of the substrate for the epitaxial growth of 2212. Growth interruption for two minutes after the 2nd SrO layer in the half unit cell is necessary to keep two-dimensional layered growth. The resulting Tc (zero) is 76 K and Jc (at 4.2 K) is 1.5 × 106 (A/cm2) with these epitaxial films.

Construction of Multilayer Thin Films Containing Avidin by a Layer-by-Layer Deposition of Avidin and Poly(anion)s

Langmuir ◽  
2000 ◽  
Vol 16 (15) ◽  
pp. 6306-6311 ◽  
Author(s):  
Jun-ichi Anzai ◽  
Tomonori Hoshi ◽  
Nobuyuki Nakamura
Keyword(s):  
Thin Films ◽  
Multilayer Thin Films ◽  
Layer By Layer ◽  
Layer Deposition

Tailored High-Tc Superconducting Thin Films Prepared by Layer-By-Layer Deposition with Excimer Laser

1989 ◽  
Vol 169 ◽  
Author(s):  
Tomoji Kawai ◽  
Masaki Kanai ◽  
Hitoshi Tabata ◽  
Shichio Kawai
Keyword(s):  
Thin Films ◽  
Laser Ablation ◽  
Excimer Laser ◽  
Weak Interaction ◽  
Superconducting Thin Films ◽  
Layer By Layer ◽  
Deposition Method ◽  
High Tc ◽  
Excimer Laser Ablation ◽  
Layer Deposition

AbstractBy using 1ayer-by-1ayer successive deposition method with excimer laser ablation, the distance between CuO2 planes in the Bi2Sr2Ca1Cu2Oy superconductor has been controlled and super lattices with concentration modulation of Y and Ca have been formed. From the properties of these ‘Tailored films’, it is suggested that there is an interaction between CuO2 layers across Ca layer to affect the Tc value, but there is a very weak interaction across Bi2O2 blocking layers.

Preparation and Characterization of La x C60 Thin Films Fabricated by Layer-by-Layer Deposition

1998 ◽  
Vol 6 (2) ◽  
pp. 199-212
Author(s):  
Toshifumi Terui ◽  
Yusei Maruyama ◽  
Takeshi Arai ◽  
Shinro Mashiko
Keyword(s):  
Thin Films ◽  
Layer By Layer ◽  
Layer Deposition

scholarly journals Iron-based inorganic–organic hybrid and superlattice thin films by ALD/MLD

2015 ◽  
Vol 44 (44) ◽  
pp. 19194-19199 ◽  
Author(s):  
A. Tanskanen ◽  
M. Karppinen
Keyword(s):  
Thin Films ◽  
Iron Oxide ◽  
Oxide Layer ◽  
Layer By Layer ◽  
Organic Layers ◽  
Organic Hybrid ◽  
Layer Deposition ◽  
Hybrid Thin Films ◽  
Iron Based ◽  
Deposition Processes

Here we present novel layer-by-layer deposition processes for the fabrication of inorganic–organic hybrid thin films of the (–Fe–O–C6H4–O–)n type and also superlattices where N thicker iron oxide layer blocks alternate with monomolecular-thin organic layers.

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