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

2016 ◽  
Vol 1 (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 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>

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.

scholarly journals Elaboration of Conductive Polymer thin films (P3HT/PCBM) by spin coating method – Application for hybrid organic solar cell

2014 ◽  
Vol 17 (3) ◽  
pp. 30-40
Author(s):  
Son Hoang Cao Tran ◽  
Quoc Kien Quoc ◽  
Nhan Thuc Chi Ha ◽  
Top Khac Le ◽  
Thang Bach Phan ◽  
...  
Keyword(s):  
Thin Film ◽  
Solar Cell ◽  
Spin Coating ◽  
High Performance ◽  
Short Circuit ◽  
Rotational Velocity ◽  
Conductive Polymer ◽  
Spin Coating Method ◽  
Donor And Acceptor ◽  
Coating Method

The nanostructured polymer-fullerene thin film is one of the most prominent materials to make the hybrid bulk heterojunction solar cell (BHJ) with high conversion efficiency. Especially when the blend of P3HT and PCBM was used as the donor and acceptor materials. The properties of P3HT and PCBM layer in solar cell has been much studied and considered as high performance systems. One of the important factors for the high performance device is the fabrication  of photo active layer with the appropriate thickness and morphology. In the ideal case, the intermolecular distance between the polymer and fullerene should be approximately 10-20 nm (the exciton diffusion distance) giving an area of extensive contact between the two phases. After the dissociation of carriers, the two polymer phases should create the path way for carriers to reach electrodes. But so far, this ideal configuration has not been published. In this work, we’ve elaborated the P3HT and PCBM photo active layers by spin coating methodon glass substrates covered ITO electrode. The rotational velocity was determined to get the necessary effective thickness of the polymer film. The annealing effect on structure, optical and electrical properties of the polymer thin film with different content of PCBM were also investigated. The experiments show the best device on electrode ITO has I-V characteristic as a photodiode and short circuit current (Isc) aboutmili-Ampere. These results demonstrate convincingly that polymer layers elaborated by spin coating method can result a good performance of the device.

Al Doped ZnO Thin Film Based Ultraviolet Photo-Conductive Sensor Prepared by Sol-Gel Spin-Coating Method

2009 ◽  
Author(s):  
M. H. Mamat ◽  
M. Z. Sahdan ◽  
S. Amizam ◽  
H. A. Rafaie ◽  
Z. Khusaimi ◽  
...  
Keyword(s):  
Thin Film ◽  
Spin Coating ◽  
Sol Gel ◽  
Zno Thin Film ◽  
Spin Coating Method ◽  
Coating Method ◽  
Doped Zno

Characterization and Synthesis of Functional TiO2 Sol-Gel Coatings on the Glass

2006 ◽  
Vol 510-511 ◽  
pp. 94-97
Author(s):  
Dae Yong Shin ◽  
Myung Gi So ◽  
Sang Mok Han
Keyword(s):  
Thin Film ◽  
Crystal Structure ◽  
Spin Coating ◽  
Air Pollutants ◽  
Water Drop ◽  
Sol Gel ◽  
Molecular Size ◽  
Coating Process ◽  
Tio2 Films ◽  
Spin Coating Process

Thin film photocatalysts of TiO2 coated on the glass were prepared to self-clean and eliminate air pollutants by spin coating process with Ti(OC3H7 i)4, including PEG. The surface structure of TiO2 films changed according to the molecular size of PEG. It was found that NOx was efficiently eliminated by the TiO2 film photocatalyst. The contact angle of water drop on the TiO2 films decreased to less than 10°. It revealed the hydrophilic property of TiO2 films. The morphology and the crystal structure of TiO2 films were affected most.

scholarly journals Preparation of Cu(In,Ga)Se2 Thin Film by Solvothermal and Spin-coating Process

2012 ◽  
Vol 16 ◽  
pp. 217-222 ◽  
Author(s):  
Ying Liu ◽  
Deyi Kong ◽  
Jiawei Li ◽  
Cong Zhao ◽  
Chilai Chen ◽  
...  
Keyword(s):  
Thin Film ◽  
Spin Coating ◽  
Coating Process ◽  
Spin Coating Process
Sign in / Sign up

Export Citation Format

Share Document