Effect of the Precursor Solution Concentration of CuI Thin Film Deposited by Spin Coating Method

2011 ◽  
Vol 364 ◽  
pp. 417-421
Author(s):  
Muhamad Nur Amalina ◽  
Muhammad Atiq Azman ◽  
Mohamad Mahmood Rusop
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Band Gap ◽  
Spin Coating ◽  
Precursor Solution ◽  
Solution Concentration ◽  
Precursor Concentration ◽  
High Concentration ◽  
Spin Coating Method ◽  
Coating Method

In this research, the effect of precursor concentration of CuI thin film deposited by spin coating method was studied. The wide band gap p-type semiconductor CuI thin film was prepared by mixing the CuI powder with 50 ml of acetonitrile as a solvent. The CuI concentration varies from 0.05M to 0.5M. The speed for spin coating is 1000 rpm for 60 seconds. After the deposition the CuI thin films were annealed at 150°C. The result shows the CuI thin film properties strongly depends on its precursor concentration. Thickness between 33.65 nm - 441.25 nm was obtained as the concentration increased. The increment of thickness affected the electrical property with resistivity of about 10-6 Ω.cm and 101 Ω.cm was observed for all the CuI thin films. For optical properties, the transmittance decreased with high concentration as high amount of CuI particle were observed in the thin films. From the transmittance, the absorption coefficient of 10-6 m-1 and optical band gap of 3.10 and 3.50 eV for all the films were observed using Tauc’s plot.

Effect of Bi dopant on morphological and optical properties of ZnO semiconductor films produced by the sol-gel spin coating process

2021 ◽  
Vol 63 (8) ◽  
pp. 778-782
Author(s):  
Tülay Yıldız ◽  
Nida Katı ◽  
Kadriye Yalçın
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Surface Roughness ◽  
Optical Properties ◽  
Spin Coating ◽  
Sol Gel ◽  
Zno Thin Film ◽  
Spin Coating Method ◽  
Coating Method ◽  
Doped Zno

Abstract In this study, undoped semiconductor ZnO thin film and Bi-doped ZnO thin films were produced using the sol-gel spin coating method. By changing each parameter of the spin coating method, the best conditions for the formation of the film were determined via the trial and error method. When the appropriate parameter was found, the specified parameter was applied for each film. The structural, superficial, and optical properties of the films produced were characterized via atomic force microscope (AFM), UV-visible spectroscopy, and Fourier transform infrared (FTIR), and the effects of Bi dopant on these properties were investigated. When the morphological properties of the undoped and Bi-doped ZnO films were examined, it was observed that they had a structure in a micro-fiber shape consisting of nanoparticles. When the surface roughness was examined, it was observed that the surface roughness values became larger as the rate of Bi dopant increased. By examining the optical properties of the films, it was determined that they were direct band transition materials and Bi-doped thin films were involved in the semiconductor range. In addition, optical properties changed positively with Bi dopant. Since Bi-doped ZnO thin film has a wide bandgap and good optical properties, it is a material that can be used in optoelectronic applications.

scholarly journals Determination of Resonance Parameters of The PANI Thin Film Fabricated using Spin Coating Method

2021 ◽  
Vol 2110 (1) ◽  
pp. 012008
Author(s):  
N P Putri ◽  
F Al Azis ◽  
D D Kamasi ◽  
S P Sakti
Keyword(s):  
Thin Film ◽  
Spin Coating ◽  
Rotational Speed ◽  
Solution Concentration ◽  
Resonance Parameters ◽  
Spin Coating Method ◽  
Rotating Speed ◽  
Nonlinear Solver ◽  
Before And After ◽  
Coating Method

Abstract This study aims to determine the resonance parameters of polyaniline thin films to better understand the viscoelasticity properties of polyaniline films. The spin coating method was used with varying solvent concentrations and rotating speed of spin coater during the deposition Polyaniline (PANI) thin film on a quartz crystal microbalance (QCM). To determine the resonance parameters of the PANI thin film, the impedance and QCM frequency measurements were first carried out before and after coated with PANI. The modelling used is a modified BVD model, and the determined resonance parameters are C0, C1, L1, R1, L2 and R2. From the results of the analysis using the GRG Nonlinear solver program, it was found that solution concentration and rotational speed in the spin coating process has a significant effect on resonator parameters of PANI thin film. The best solution concentration from this study was 2% DMF with a rotational speed of 2,000 rpm. This is because in these conditions it provides a minimal damping effect on QCM.

scholarly journals Effect of Aging Time on the Synthesis of Fe-doped TiO2 Thin Films by Spin Coating Method

2016 ◽  
Vol 1 ◽  
Author(s):  
Dahyunir Dahlan
Keyword(s):  
Thin Film ◽  
Aging Time ◽  
Spin Coating ◽  
Anatase Phase ◽  
Precursor Solution ◽  
Coating Process ◽  
Titanium Butoxide ◽  
Spin Coating Process ◽  
Spin Coating Method ◽  
Coating Method

<p>The synthesis of Fe-doped TiO<sub>2</sub> thin film using spin coating method was studied. Effects of aging time on the deposited thin film were investigated. Titanium butoxide (C<sub>16</sub>H<sub>36</sub>O<sub>4</sub>Ti) as a precursor solution was mixed with the FeCl<sub>3</sub>. Spin coating process was carried out on three types of precursor solution: (1) spin-coating process performed immediately after the precursor solution was made, (2) spin-coating process performed after solution was aged for 24 hours, (3) aged for 24 and (4) spin-coating after aging the precursor for 72 hours. Heating was carried out on the resulting thin film at temperature of 400 °C. The morphology of TiO<sub>2</sub> layers was characterized using Scanning Electron Microscope (SEM) and Atomic Force Microscope (AFM). Elemental and phase composition of the films was determined using EDX and X-ray diffraction (XRD). We found that the best TiO<sub>2</sub> layer is obtained when spin-coating process is done after aging the precursor for 72 hours. The layer shows a more uniform particle distribution on the substrate and a more monodisperse particle size dominated by the anatase phase.</p>

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.

Band Gap and Conductivity Measurement of TiO2 Thin Films Deposited by Sol-Gel Spin Coating Method

2012 ◽  
Vol 500 ◽  
pp. 273-277
Author(s):  
Davinder Rathee ◽  
Mukesh Kumar ◽  
Sandeep K. Arya ◽  
Mukesh Sharma
Keyword(s):  
Thin Films ◽  
Band Gap ◽  
Spin Coating ◽  
Sol Gel ◽  
Conductivity Measurement ◽  
Spin Coating Method ◽  
Coating Method

Optical band gap controlling of nanostructure Mn doped CdO thin films prepared by sol–gel spin coating method

Optik ◽  
2015 ◽  
Vol 126 (5) ◽  
pp. 575-577 ◽  
Author(s):  
Zayed A. Alahmed ◽  
H.A. Albrithen ◽  
Ahmed A. Al-Ghamdi ◽  
F. Yakuphanoglu
Keyword(s):  
Thin Films ◽  
Band Gap ◽  
Spin Coating ◽  
Optical Band Gap ◽  
Sol Gel ◽  
Spin Coating Method ◽  
Coating Method ◽  
Cdo Thin Films ◽  
Mn Doped

Band Gap and Conductivity Measurement of TiO2 Thin Films Deposited by Sol-Gel Spin Coating Method

2012 ◽  
Vol 500 ◽  
pp. 273-277 ◽  
Author(s):  
Davinder Rathee ◽  
Mukesh Kumar ◽  
Sandeep K. Arya ◽  
Mukesh Sharma
Keyword(s):  
Thin Films ◽  
Band Gap ◽  
Spin Coating ◽  
Sol Gel ◽  
Conductivity Measurement ◽  
Thermo Gravimetric ◽  
Spin Coating Method ◽  
Thermo Gravimetric Analyzer ◽  
Current Voltage ◽  
Coating Method

Thin films of TiO2have been deposited on to cleaned glass substrate by sol gel spin coating method. The XRD analyses confirm different crystalline phases of TiO2thin films. The grain size calculated by the help of Scherer’s formula and found to be 23nm, 37nm and 54 nm respectively for TiO2(004), TiO2(200) and TiO2(211) orientations. The band gap was calculated 3.6 eV by UV-spectrophotometer. The refractive index of the TiO2film was measured by Ellipsometry and found to be 2.33. Conductivity was measured using Current voltage (I-V) characteristics. To determine composition and thermal stability, thermo gravimetric Analyzer (TGA) and Differential Scanning Calorimeter (DSC) analysis was made on samples.

scholarly journals SINTESIS LAPISAN TIPIS TiO2:(F+In) PADA SUBSTRAT KACA DENGAN METODE SPIN-COATING SEBAGAI BAHAN SEL SURYA

2021 ◽  
Vol 7 (1) ◽  
pp. 219
Author(s):  
Dedi Riyan Rizaldi ◽  
Aris Doyan ◽  
Susilawati Susilawati
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Solar Cells ◽  
Thin Layer ◽  
Spin Coating ◽  
Sol Gel ◽  
Synthesis Process ◽  
Spin Coating Method ◽  
Coating Method ◽  
Layer Sample

ABSTRAKTelah dilakukan penelitian sintesis lapisan tipis TiO2 dengan doping campuran Fluorin dan Indium. Tujuan penelitian ini untuk menghasilkan lapisan tipis yang baik digunakan sebagai salah satu komponen pada sel surya yaitu lapisan absorben. Sintesis lapisan tipis menggunakan metode spin-coating dengan bantuan alat centrifuge yang dimodifikasi. Penelitian ini dilaksanakan di Laboratorium Kimia Dasar dan Kimia Organik, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Mataram. Jenis penelitian ini adalah penelitian eksperimen murni dengan data dianalisis secara deskriptif. Proses sintesis lapisan tipis terdiri dari beberapa tahapan yaitu 1). Persiapan substrat, 2). Pembuatan larutan sol-gel, 3). Deposisi lapisan tipis, dan 4). Pemanasan sampel lapisan tipis. Sampel lapisan tipis diberikan tiga perlakuan berbeda yang terdiri dari 1). Konsentrasi larutan, 2). Jumlah lapisan, dan 3). Variasi suhu pemanasan sampel. Berdasarkan penelitian yang sudah dilakukan didapatkan bahwa semakin besar konsentrasi doping yang digunakan maka semakin gelap permukaan sampel lapisan tipis yang dihasilkan. Kata kunci: sintesis lapisan tipis; TiO2:(F+In); metode spin-coating; sel surya. ABSTRACTResearch on the synthesis of TiO2 thin films with doping mixture of Fluorine and Indium has been carried out. The aim of this research is to produce a thin film which is suitable for use as a component of solar cells, namely the absorbent layer. Synthesis of thin films using the spin-coating method with the help of a modified centrifuge. This research was conducted at the Laboratory of Basic Chemistry and Organic Chemistry, Faculty of Mathematics and Natural Sciences, Mataram University. This type of research is pure experimental research with data analyzed descriptively. The thin layer synthesis process consists of several stages, namely 1). Substrate preparation, 2). Preparation of sol-gel solution, 3). Thin layer deposition, and 4). Heating the thin layer sample. The thin layer sample was given three different treatments consisting of 1). The concentration of the solution, 2). Number of layers, and 3). Variation in sample heating temperature. Based on the research that has been done, it was found that the greater the doping concentration used, the darker the surface of the resulting thin layer sample. Keywords: synthesis thin film, TiO2:(F+In), spin-coating method, solar cells

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