Layer-by-layer MoS2:GO composite thin films for optoelectronics device applications

2019 ◽  
Vol 479 ◽  
pp. 1118-1123 ◽  
Author(s):  
Sweety Sarma ◽  
Pontsho Mbule ◽  
Sekhar Chandra Ray
Keyword(s):  
Thin Films ◽  
Layer By Layer ◽  
Composite Thin Films ◽  
Device Applications

scholarly journals Study of Ruthenium Oxide, Manganese Oxide and Composite (Ru:Mn)O2 thin film Electrodes Assembled by Layer by Layer Spin Coating Method

2016 ◽  
Vol 13 (1) ◽  
pp. 43-49 ◽  
Author(s):  
P. S. Joshi ◽  
D. S. Sutrave
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Manganese Oxide ◽  
Spin Coating ◽  
Composite Films ◽  
Ruthenium Oxide ◽  
Layer By Layer ◽  
Composite Thin Films ◽  
Spin Coating Method ◽  
Coating Method

Ruthenium oxide, Manganese oxide and (Ru:Mn)O2 composite thin films have been prepared by 0.02M Ruthenium chloride and Manganese acetate solutions respectively on stainless steel substrates by sol-gel spin coating method. Layer by layer deposition of RuO2 and MnO2 was done for composite films. RuO2: MnO2 composite thin films have been demonstrated to be an excellent material for Supercapacitor application when evaluated with RuO2 and MnO2 thin film electrodes with respect to XRD, SEM, CV, CP and EIS studies. As a result, high specific capacitance of 515 F/g at 10 mV/s with excellent stability and long cycle life was obtained, where specific power and energy were as high as 15.38 Wh/kg and 4.06 KW/kg respectively with loading weight of 0.13 mg/cm2 .Composite films showed changes in structural and morphological features which was admiring for supercapacitor applications. The electrochemical impedance measurement was carried out in 0.1M KOH in the frequency range 10 to 105 Hz. From the analysis it can be concluded that mixed oxide composites have superior capacitive performance to single transition metal oxides as electrodes.

Enhancement in Bioactivity of Titanium Substrate with Composite Thin Films

2010 ◽  
Vol 105-106 ◽  
pp. 517-519
Author(s):  
Fei Gao ◽  
Fan Xiao ◽  
Zhi Xian Zhang
Keyword(s):  
Thin Films ◽  
Uv Radiation ◽  
Uv Light ◽  
Irradiation Time ◽  
Titanium Substrate ◽  
Layer By Layer ◽  
Titanium Chloride ◽  
Great Expectation ◽  
Composite Thin Films ◽  
Titanium Substrates

Nanometer TiO2 microcapsule has potential applications in biochemistry, drug Controlled Release, and catalyst. Meanwhile, Ultraviolet (UV) light-induced bioactivity of titanium substrates is attracting more and more attention nowadays. Composite thin films formed by Nano-TiO2 microcapsule prepared by a novel and versatile technique of layer-by-layer (L-b-L) deposition using the Nanometer latex particles of Polystyrene (PS) as the template together with TiO2 films synthesized at low temperature by the hydrolysis of titanium chloride (TiCl4) precursor was successfully deposited on the different titanium substrates after the template was removed. Thus great expectation was placed on whether UV radiation can enhance the bioactivity of the titanium substrates after the composite thin films being deposited on its surface. The apatite-forming ability was evaluated after the UV-irradiated implants being soaked in simulated body fluid (SBF) within different hours by Scanning electron microscopy (SEM), XRD. The vitro results indicated that UV radiation was favored to formation of apatite on titanium substrates. Besides, the effect of different UV- irradiation time on apatite-forming was different.

Effect on Morphology and Optical Properties of Inorganic and Hybrid Perovskite Semiconductor Thin Films Fabricated Layer by Layer

2020 ◽  
Vol 20 (6) ◽  
pp. 3832-3838
Author(s):  
Ashwani Kumar ◽  
K. L. Singh ◽  
S. K. Tripathi
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Band Gap ◽  
Perovskite Solar Cells ◽  
Layer By Layer ◽  
Hybrid Perovskite ◽  
Layer Deposition ◽  
Semiconductor Thin Films ◽  
Device Applications ◽  
Halide Perovskite

In recent time, organic–inorganic halide perovskite solar cells govern photovoltaic field, due to its remarkable development on the power conversion process. Still, large variations in device efficiency and basic physical properties are reported. This is due to variations during film fabrications and consecutive treatments employed. Here, we report a layer by layer deposition of inorganic perovskite (CsBi3I10) and lead halide perovskite (CH3NH3PbI3) thin films. We find that the absorbance for corresponding thin film goes on increasing dramatically. UV-vis spectrum of film recorded to find the band gap of films, ˜1.55 eV optical band gap have been obtained for the film fabricated layer by layer. We further study the fabrication of different perovskite layers impact on microstructure, surface morphology and optical properties. The optical and structural characterization outcomes all suggests the perovskite films processed by using the layer by layer fabrication are well controlled, making this processes an auspicious technique to fabricate thin-films for numerous prospective device applications and scientific studies.

Recent Progress in Evaluation Techniques and Device Applications of Organic and Composite Thin Films

2010 ◽  
Vol 130 (2) ◽  
pp. 129-135 ◽  
Author(s):  
Keizo Kato ◽  
Kazunari Shinbo ◽  
Tetsushi Okamoto ◽  
Yusuke Aoki ◽  
Hiroyuki Iechi
Keyword(s):  
Thin Films ◽  
Recent Progress ◽  
Composite Thin Films ◽  
Device Applications ◽  
Evaluation Techniques
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