Galvanostatically deposited Co3O4–NiO nanocomposite thin films onto FTO glass substrates: An investigation of their microstructural and supercapacitive properties

2021 ◽  
Vol 867 ◽  
pp. 159022
Author(s):  
P.P. Sahay
Keyword(s):  
Thin Films ◽  
Glass Substrates ◽  
Nanocomposite Thin Films ◽  
Fto Glass

Sol–gel synthesis of PZT thin films on FTO glass substrates for electro-optic devices

2019 ◽  
Vol 93 (3) ◽  
pp. 623-632
Author(s):  
Ali Shoghi ◽  
Hossein Abdizadeh ◽  
Amid Shakeri ◽  
Mohammad Reza Golobostanfard
Keyword(s):  
Thin Films ◽  
Sol Gel ◽  
Pzt Thin Films ◽  
Glass Substrates ◽  
Electro Optic ◽  
Sol Gel Synthesis ◽  
Fto Glass

scholarly journals Investigating the Nanocomposite Thin Films of Hematite α-Fe2O3 and Nafion for Cholesterol Biosensing Applications

2020 ◽  
Vol 2 ◽  
Author(s):  
Indra Sulania ◽  
R. Blessy Pricilla ◽  
G. B. V. S. Lakshmi
Keyword(s):  
Thin Films ◽  
Indium Tin Oxide ◽  
Differential Pulse ◽  
Force Microscopy ◽  
Glass Substrates ◽  
Enzyme Substrate ◽  
Atomic Force ◽  
Nanocomposite Thin Films ◽  
Multi Phase ◽  
Cholesterol Biosensor

Nanocomposite materials are multi-phase materials, usually solids, which have two or more component materials having different chemical and physical properties. When blended together, a newer material is formed with distinctive properties which make them an eligible candidate for many important applications. In the present study, thin films of nafion (polymer) and hematite or α-Fe2O3 (nanoparticles) nanocomposite is fabricated on indium tin oxide (ITO) coated glass substrates, due to its enhanced ionic conductivity, for cholesterol biosensor applications. Scanning electron microscopy and Atomic force microscopy revealed the formation of nanorod structured α-Fe2O3 in the films. The cyclic voltammetry (CV) studies of nafion-α-Fe2O3/ITO revealed the redox properties of the nanocomposites. The sensing studies were performed on nafion-α-Fe2O3/CHOx/ITO bioelectrode using differential pulse voltammetry (DPV) at various concentrations of cholesterol. The enzyme immobilization leaded to the selective detection of cholesterol with a sensitivity of 64.93 × 10−2 μA (mg/dl)−1 cm−2. The enzyme substrate interaction (Michaelis–Menten) constant Km, was obtained to be 19 mg/dl.

Optical Properties and Surface Morphology of PMMA: TiO2 Nanocomposite Thin Films

2011 ◽  
Vol 364 ◽  
pp. 105-109 ◽  
Author(s):  
Ismail Lyly Nyl ◽  
Ahmad Fairoz Aziz ◽  
Zulkefle Habibah ◽  
Musa Mohamed Zaihidi ◽  
Mohd Hanapiah Abdullah ◽  
...  
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Surface Morphology ◽  
Sol Gel ◽  
The Other ◽  
Optical Transparency ◽  
Force Microscopy ◽  
Glass Substrates ◽  
Nanocomposite Thin Films ◽  
Triton X

Sol-gel spin coated PMMA:TiO2 nanocomposite thin films on glass substrates were studied by comparing two types of the sol-gel solutions. Two types of PMMA:TiO2 nanocomposite sol-gel solutions were prepared; one using Degusa (P25), and the other one is using self-prepared TiO2 powder. The self-prepared nanosized TiO2 powder is obtained by drying the TiO2 sol-gel using solvothermal method followed by grinding the TiO2 crystal using ball miller. Triton-X was used as surfactant to stabilize the composite. Besides comparing the nanocomposite solution, we also studied the effect of the thin films thickness on the optical properties and their surface morphology. The optical properties and surface morphology were measured with UV-VIS spectrometer and atomic force microscopy (AFM). The result showed that nanocomposite PMMA with self-prepared TiO2 give high optical transparency than that of with Degusa (P25). The results also indicate that as the thickness is increased the optical transparency are decreased. Both AFM images showed that the agglomerations of TiO2 particles occurred on top of the thin film and the surface roughness increased when the thickness is increased. AFM results show that nanocomposited PMMA with P25 has high agglomeration particles compared to the other one.

scholarly journals Investigation on the Optical and Surface Morphology of Conjugated Polymer MEH-PPV:ZnO Nanocomposite Thin Films

2012 ◽  
Vol 2012 ◽  
pp. 1-4 ◽  
Author(s):  
Nurul Zayana Yahya ◽  
Mohamad Rusop
Keyword(s):  
Thin Films ◽  
Zno Nanoparticles ◽  
Conjugated Polymer ◽  
Weight Percent ◽  
Phenylene Vinylene ◽  
Sem Images ◽  
X Ray ◽  
Glass Substrates ◽  
Red Color ◽  
Nanocomposite Thin Films

Thin films of red color poly(2-methoxy-5(2′-ethylhexyloxy)-phenylene vinylene) (MEH-PPV) containing different weight percent of ZnO nanoparticles were obtained by spin-coating techniques. The MEH-PPV:ZnO solutions were spin coated onto silicon and glass substrates. The spun MEH-PPV:ZnO thin films were then used to investigate optical properties by using ultraviolet-visible spectrometer (UV-Vis) and photoluminescence spectrophotometer (PL). The morphologies were investigated by using field emission scanning electron microscopy (FESEM), while the identification of ZnO in the final product was determined by using energy-dispersive X-ray spectroscopy (EDS). The UV-Vis absorption band increases, while the optical bandgap decreases when the amount of ZnO nanoparticles increases. ZnO nanoparticles apparently have no effect on the conjugation segments of MEH-PPV. PL spectra show that the emission peak increases and slightly red shift as ZnO concentration increases. Based on SEM images of MEH-PPV:ZnO nanocomposite thin films, ZnO nanoparticles form agglomerated regions.

scholarly journals Synthesis of Bi 2 S 3 thin films based on pulse-plating bismuth nanocrystallines and its photoelectrochemical properties

2020 ◽  
Vol 7 (8) ◽  
pp. 200479
Author(s):  
Fangchang Ding ◽  
Qiujin Wang ◽  
Shaofei Zhou ◽  
Guochen Zhao ◽  
Ying Ye ◽  
...  
Keyword(s):  
Thin Films ◽  
Low Cost ◽  
Pulse Plating ◽  
Potassium Citrate ◽  
Photoelectrochemical Properties ◽  
High Quality ◽  
Glass Substrates ◽  
Structure Morphology ◽  
Plating Method ◽  
Fto Glass

The solubility of Bi 3+ in aqueous solution is an important factor that limits the fabrication of high-quality Bi 2 S 3 thin films. In order to find a low-cost method to manufacture high-quality Bi 2 S 3 thin films, we are reporting the preparation of the Bi 2 S 3 thin films based on pulse-plating method in this paper for the first time. The nano-bismuth particles were obtained by electroplating on fluorine-doped SnO 2 (FTO)-coated conducting glass substrates with saturated bismuth potassium citrate solution as the electroplating bath, and then it was put into a muffle furnace to oxidize. Finally, the thin films depositing on FTO glass substrates were put into the thioacetamide solution for vulcanization. In the end, the Bi 2 S 3 thin films were successfully prepared on FTO glass substrates. Different characterization techniques were used to characterize the structure, morphology and photoelectrochemical properties of the prepared thin films. The test results revealed that we used this method to synthesize the high-quality Bi 2 S 3 thin films, thus the Bi 2 S 3 materials synthesized through this method are promising candidates in photoelectrochemical application.

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