Effect of heating rate on morphology of anti-reflective TiO<sub>2</sub> film coated by sol-gel with polyethylene glycol
คำสำคัญ:
Sol-gel, Titania, Spin coating, Calcinationบทคัดย่อ
This research studies formation of thin porous TiO2 film prepared by Sol-gel process with spin coating. Polyethylene glycol with molecular weight of 6,000 g/mol (6kPEG) was used as a pore generating agent. The TiO2 film was calcination at 450°C for 1 hour with different heating rate. It was found that heating rate strongly affects on morphology of TiO2 film due to grain coalescence. The lower heating rate tends to cause more coalescence resulting in coarsening of both grain and pore size. With higher heating rate, film density can be increased due to lower number of pores. On the other hand, for dense TiO2 film without Polyethylene glycol (noPEG), heating rate does not affect on film morphology.
Downloads
เอกสารอ้างอิง
Tanemura, S., Miao, L., Jin, P., Kaneko, K., Terai, A. and Nabatova-Gabain, N. (2003). Optical properties of polycrystalline and epitaxial anatase and rutile TiO2 thin films by rf magnetron sputtering. Appl. Surf. Sci. 212-213: 654-660.
Yoldas, B. E. and Partlow, D. P. (1985). Formation of broad band antireflective coatings on fused silica for high power laser applications. Thin Solid Films. 129(1-2): 1-14.
Vishwas, M., Sharma, S.K., Rao, K.N., Mohan, S., Gowda, K.V.A. and Chakradhar, R. P. S. (2010). Influence of surfactant and annealing temperature on optical properties of sol-gel derived nano-crystalline TiO2 thin films. Spectrochimica Acta Part A. 75(3): 1073-1077.
Arconada, N., Duran, A., Suarez, S., Portela, R., Coronado, J.M., Sanchez, B. and Castro, Y. (2009). Synthesis and photocatalytic properties of dense and porous TiO2-anatase thin films prepared by sol-gel. Appl. Catal. B : Env. 86(1-2): 1-7.
Bu, S., Jin, Z., Liu, X., Yang, L. and Cheng, Z. (2004). Fabrication of TiO2 Porous Thin Films Using PEG Templates and Chemistry of the Process. Mater. Chem. Phys. 88(2-3): 273-279.
Batra, N., Kumar, P., Srivastava, S.K., Vandana, Kumar, R., Srivastava, R., Deepa, M., Awasthy, B.R. and Singh, P.K. (2011). Controlled synthesis and characteristics of antireflection coatings of TiO2 produced from a organometallic colloid. Mater. Chem. Phys. 130(3): 1061-1065.
Prado, R., Beobide, G., Marcaide, A., Goikoetxea, J. and Aranzabe, A. (2010). Development of multifunctional sol-gel coatings: anti-reflection coatings with enhanced self-cleaning capacity. Solar Energy Materials and Solar Cells. 94(6): 1081-1088.
Arconada, N., Castro, Y. and Duran, A. (2010). hotocatalytic properties in aqueous solution of porous TiO 2-anatase films prepared by solgel process. Appl. Catal. A: Gen. 385(1): 101-107.
Guo, B., Liu, Z., Hong, L., Jiang, H. and Yang Lee, J. (2005). Photocatalytic Effect of the Sol-Gel Derived Nanoporous TiO2 Transparent Thin Films. Thin Solid Films. 479(1-2): 310-315.
Guo, B., Liu, Z., Hong, L. and Jiang, H. (2005). Sol gel derived photocatalytic porous TiO2 thin films. Surf Coat. Tech. 198(1-3): 24-29.
Yu, J., Zhao, X. and Zhao, Q. (2000). Effect of surface structure on photocatalytic activity of TiO2 thin films prepared by sol-gel method. Thin Solid Films. 379(1-2): 7-14.
Kuznetsova, I.N., Blaskov, V. and Znaidi, L. (2007). Study on the influence of heat treatment on the crystallographic phases of nanostructured TiO2 films. Mater. Sci. Eng., B. 137(1): 31-39.
Cho, Y.S., Shim, M.J. and Kim, S.W. (1998). Thermal degradation kinetics of PE by the Kissinger equation. Mater. Chem. Phys. 52(1): 94-97.
ดาวน์โหลด
เผยแพร่แล้ว
วิธีการอ้างอิง
ฉบับ
บท
การอนุญาต
ลิขสิทธิ์ (c) 2015 วารสารโลหะ, วัสดุ และแร่
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Authors who publish in this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgment of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgment of its initial publication in this journal.
