Effects of annealing on ZnS films produced by CBD method

Lead zirconate titanate, Pb(Zr,Ti)O3 (PZT), ceramics are ferroelectrics formed as solid solutions between ferroelectric PbTiO3 and ant iferroelectric PbZrO3. The subsolidus phase diagram is shown in figure 1. PZT transforms between the Ti-rich tetragonal (T) and the Zr-rich rhombohedral (R) phases at a composition which is nearly independent of temperature. This phenomenon is called morphotropism, and the boundary between the two phases is known as the morphotropic phase boundary (MPB). The excellent piezoelectric and dielectric properties occurring at this composition are believed to.be due to the coexistence of T and R phases, which results in easy poling (i.e. orientation of individual grain polarizations in the direction of an applied electric field). However, there is little direct proof of the coexistence of the two phases at the MPB, possibly because of the difficulty of distinguishing between them. In this investigation a CBD method was found which would successfully differentiate between the phases, and this was applied to confirm the coexistence of the two phases.

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Substrate templated synthesis of single-phase and uniform Zr-porphyrin-based metal–organic frameworks

Inorganic Chemistry Frontiers ◽

10.1039/c9qi01045a ◽

2020 ◽

Vol 7 (1) ◽

pp. 221-231

Author(s):

Seong Won Hong ◽

Ju Won Paik ◽

Dongju Seo ◽

Jae-Min Oh ◽

Young Kyu Jeong ◽

...

Keyword(s):

Chemical Bath Deposition ◽

Single Phase ◽

Metal Organic Frameworks ◽

Templated Synthesis ◽

Pore Structures ◽

Phase Pure ◽

Metal Organic ◽

Cbd Method

We successfully demonstrate that the chemical bath deposition (CBD) method is a versatile method for synthesizing phase-pure and uniform MOFs by controlling their nucleation stages and pore structures.

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Deposition time dependent study of structural and optical properties of PbS thin films grown by CBD method

Recent Innovations in Chemical Engineering (Formerly Recent Patents on Chemical Engineering) ◽

10.2174/2405520413999200517123919 ◽

2020 ◽

Vol 13 ◽

Author(s):

Minakshi Chaudhary ◽

Yogesh Hase ◽

Ashwini Punde ◽

Pratibha Shinde ◽

Ashish Waghmare ◽

...

Keyword(s):

Thin Films ◽

Optical Properties ◽

Band Gap ◽

Deposition Time ◽

Secondary Growth ◽

Cost Effective ◽

Xrd Analysis ◽

Structural Morphology ◽

Glass Substrates ◽

Cbd Method

: Thin films of PbS were prepared onto glass substrates by using a simple and cost effective CBD method. Influence of deposition time on structural, morphology and optical properties have been investigated systematically. The XRD analysis revealed that PbS films are polycrystalline with preferred orientation in (200) direction. Enhancement in crystallinity and PbS crystallite size has been observed with increase in deposition time. Formation of single phase PbS thin films has been further confirmed by Raman spectroscopy. The surface morphology analysis revealed the formation of prismatic and pebble-like PbS particles and with increase in deposition time these PbS particles are separated from each other without secondary growth. The data obtained from the EDX spectra shows the formation of high-quality but slightly sulfur rich PbS thin films over the entire range of deposition time studied. All films show increase in absorption with increase in deposition time and a strong absorption in the visible and sub-band gap regime of NIR range of the spectrum with red shift in band edge. The optical band gap shows decreasing trend, as deposition time increases but it is higher than the band gap of bulk PbS.

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Study of ZnSxO1-x Prepared by Thermal Oxidation of ZnS Films Deposited from a Chemical Bath

2020 17th International Conference on Electrical Engineering, Computing Science and Automatic Control (CCE) ◽

10.1109/cce50788.2020.9299153 ◽

2020 ◽

Author(s):

Rosa Maria Nava-Sanchez ◽

Gaspar Casados-Cruz ◽

Arturo Morales-Acevedo

Keyword(s):

Thermal Oxidation ◽

Zns Films

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Anisotropic Nanostructure ZnO Photoelectrodes for CdS/CdSe Quantum Dot Sensitized Solar Cells

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.873.556 ◽

2013 ◽

Vol 873 ◽

pp. 556-561

Author(s):

Jian Jun Tian

Keyword(s):

Quantum Dots ◽

Solar Cells ◽

Quantum Dot ◽

Chemical Bath Deposition ◽

Cdse Quantum Dots ◽

Silar Method ◽

Nanorods Array ◽

Cdse Quantum Dot ◽

Cbd Method ◽

Sensitized Solar Cells

CdS/CdSe quantum dots co-sensitized solar cells (QDSCs) were prepared by combining the successive ion layer absorption and reaction (SILAR) method and chemical bath deposition (CBD) method for the fabrication of CdS and CdSe quantum dots, respectively. In this work, we designed anisotropic nanostructure ZnO photoelectrodes, such as nanorods/nanosheets and nanorods array, for CdS/CdSe quantum dots co-sensitized solar cells. Our study revealed that the performance of QDSCs could be improved by modifying surface of ZnO to increase the loading of quantum dots and reduce the charge recombination.

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