scholarly journals Effect of the Ultrasonic Substrate Vibration on Nucleation and Crystallization of PbI2 Crystals and Thin Films

Crystals ◽  
2018 ◽  
Vol 8 (2) ◽  
pp. 60 ◽  
Author(s):  
Fatemeh Zabihi ◽  
Morteza Eslamian
Keyword(s):  
Thin Films ◽  
Substrate Vibration ◽  
Ultrasonic Substrate Vibration

Improved functionality of PEDOT:PSS thin films via graphene doping, fabricated by ultrasonic substrate vibration-assisted spray coating

2016 ◽  
Vol 222 ◽  
pp. 309-317 ◽  
Author(s):  
Qianli Chen ◽  
Fatemeh Zabihi ◽  
Morteza Eslamian
Keyword(s):  
Thin Films ◽  
Spray Coating ◽  
Substrate Vibration ◽  
Ultrasonic Substrate Vibration ◽  
Graphene Doping

Synthetic Route of CdSe Nanocrystalline Films Fabricated by Substrate Vibration Assisted Drop Casting Method

2020 ◽  
Vol 12 (6) ◽  
pp. 761-770
Author(s):  
Megha Sachdeva ◽  
P. Agrawal ◽  
Sheenam Sachdeva ◽  
K. K. Bhasin ◽  
S. K. Tripathi ◽  
...  
Keyword(s):  
Low Cost ◽  
Cost Effective ◽  
Cdse Nanocrystals ◽  
Nanocrystalline Films ◽  
X Ray Diffraction ◽  
Casting Method ◽  
Substrate Vibration ◽  
Ultrasonic Substrate Vibration ◽  
Particle Size Analyzer ◽  
Average Size

Herein, we report a greener, non-toxic, cost effective and a modest scheme for the fabrication of excellent CdSe nanocrystals (NCs). Precursors for the present reaction are synthesized by the treatment of cadmium chloride (CdCl2) with 2-pyridyl selenolate (NaSeC5H4N) resulting a complex of the formula [(C5H4NSe)2Cd]. The complex is characterized by NMR (1H and 13C) and IR spectroscopies. The complex, [(C5H4NSe)2Cd] is found to be polymeric in nature, as indicated by its insolubility in solvents, and is further customized as a single-source pioneers for the preparation of colloidal CdSe NCs. Thermolysis of [(C5H4NSe)2 Cd] has been successfully carried out by hotinjection method using low-cost and harmless oleic acid (OA) as the coordinating solvent, thereby rejecting the need of air-sensitive and toxic solvents. Based upon dynamic light scattering (DLS) technique, the average size of colloidal CdSe NCs are determined using particle size analyzer. The average size of colloidal NCs comes out to be 6.3 nm. Thin films of colloidal CdSe NCs are deposited on glass substrate using drop-casting (DC) and ultrasonic substrate vibration assisted drop casting (SVADC) methods to study their use as workable materials for engineering devices. The films are characterized by ultraviolet-visible spectroscopy (UV-vis), photoluminescence (PL) studies, X-ray diffraction (XRD) and scanning electron microscopy (SEM) techniques.

INFLUENCE OF CADMIUM SALTS ON A MODIFIED CHEMICAL BATH DEPOSITION OF CADMIUM SULFIDE THIN FILMS

2008 ◽  
Vol 15 (03) ◽  
pp. 265-270 ◽  
Author(s):  
X. B. XU ◽  
S. Y. HUANG ◽  
J. B. CHU ◽  
H. B. ZHU ◽  
Z. SUN ◽  
...  
Keyword(s):  
Thin Films ◽  
Cadmium Chloride ◽  
Cadmium Acetate ◽  
Ion Source ◽  
Visible Range ◽  
Sulfur Source ◽  
Cadmium Ion ◽  
Substrate Vibration ◽  
Cds Thin Films ◽  
Cds Films

A simply modified bath deposition technique has been successfully used to deposit uniform CdS thin films using cadmium chloride or cadmium acetate as the cadmium ion source, and thiourea as the sulfur source on glass substrates. Both the traditional magnetic agitation and the frequent substrate vibration by hand were done simultaneously during the deposition. Various properties of the deposited films such as surface morphology, crystallinity, and optical properties were investigated. The CdS films deposited from cadmium acetate show a good crystallinity and exhibit a preferential orientation along the hexagonal (002) direction. Their surface morphologies are more homogeneous with smaller grains than those from cadmium chloride. The CdS films prepared from both cadmium ion sources present a high optical transmission (more than 80%) in the visible range with the band gap value of about 2.4 eV. The substrate vibration reduces the formation and residence of gas bubbles on the glass substrate during growth and resulted in deposition of CdS thin films with high quality. XRD, SEM, and UV–Vis measurements have provided the supported data. The fundamental CBD growth mechanisms involving different cadmium salts are discussed.

scholarly journals Mechanical Properties of Thin Films Synthesized by Controlled Substrate Vibration

2005 ◽  
Vol 71 (2) ◽  
pp. 278-283
Author(s):  
Takamasa SUZUKI ◽  
Yasutaka MATSUBARA ◽  
Akihito MATSUMURO
Keyword(s):  
Thin Films ◽  
Mechanical Properties ◽  
Substrate Vibration

Grain engineering by ultrasonic substrate vibration post-treatment of wet perovskite films for annealing-free, high performance, and stable perovskite solar cells

Nanoscale ◽  
2018 ◽  
Vol 10 (18) ◽  
pp. 8526-8535 ◽  
Author(s):  
Hao Xiong ◽  
Fatemeh Zabihi ◽  
Hongzhi Wang ◽  
Qinghong Zhang ◽  
Morteza Eslamian
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Perovskite Solar Cells ◽  
Annealing Process ◽  
Post Treatment ◽  
Substrate Vibration ◽  
Ultrasonic Substrate Vibration ◽  
Grain Engineering

The ultrasonic substrate vibration post-treatment (SVPT) of wet perovskite films can eliminate the annealing process.

Micropatterning of Indium Tin Oxide Thin Films by Selective Deposition and Improvement in Selectivity by Combination with Substrate Vibration

2007 ◽  
Vol 46 (5A) ◽  
pp. 3016-3019 ◽  
Author(s):  
Atsushi Takakuwa ◽  
Tadaoki Mitani ◽  
Tatsuya Shimoda
Keyword(s):  
Thin Films ◽  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Oxide Thin Films ◽  
Selective Deposition ◽  
Substrate Vibration
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