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Research Initiatives |
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Academic Exercises and Final Year Projects
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Academic Exercises and Final Year Projects |
---------------vvvvvvv--------------- Lam Yen Ling did her Academic Exercise (AE) under the supervision of Prof. Lee Sing. I first came to Singapore as a visiting scientist under the auspicious of AAAPT (Asian African Association on Plasma Training) to help her complete AE project on irradiation effects of argon ion from plasma focus on antimony telluride thin films. AE Thesis Title: Abstract: Publications: 1. Y.L. Lam, P. Lee, M.H. Liu, S. Lee, R.S. Rawat, P. Arun, A.G. Videshwar and A.C.H. Huan, Argon ion induced changes on antimony telluride thin films using dense plasma focus device, Proceeding International Congress On Plasma Physics, Prague, Czech Republic, edited by P. Pavlo, 22C, 2793-2797 (1998). 2. R.S. Rawat, P. Arun, A.G. Videshwar, Y.L. Lam, P. Lee, M.H. Liu, S. Lee and A.C.H.Huan, Effect of argon ion on antimony telluride thin films in dense plasma focus device, Bulletin Material Research, 35, 477-486 (2000).
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Wye Mun Chew, Serene did her Academic Exercise (1999-00) under the supervision of Prof. Lee Sing in 1999-2000. I was working as Research Fellow at that time with Prof Lee and helped Serene to deposit TiN thin films using plasma focus device. Thesis Title: Abstract: Publications: 1. R.S. Rawat, W.M. Chew, P. Lee, T. White, B. Shan, S.P. Moo and S. Lee, Room temperature growth of titanium nitride thin films on stainless steel substrates using plasma focus device, Proceedings of Regional Conference on Plasma Research in 21st Century, Bangkok, Thailand, editor B. Paosawatyanyong, 150-154 (2000). 2. R.S. Rawat, W.M. Chew, P. Lee, T. White and S. Lee, Deposition of titanium nitride thin films on 304-stainless steel substrates at room temperature using a plasma focus device, Surface and Coating Technology, Volume 173, Issues 2-3 , 276-284 (2003). 3. R.S. Rawat, R.S.V. Joseph, W.L. Clarissa, L.Y Soh, P. Arun, A.G. Videshwar, W.M. Chew, V. Aggarwal, P.Lee and S. Lee, Application of Dense Plasma Focus device for thin film deposition and modification, Accepted for presentation at First Cairo Conference on Plasma Physics and Applications, Oct 11-15, 2003 (to be published in Conf. proceedings).
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Soh Lee Yoong was the first student, formally registered, to do her Academic Exercise (2002-03) under my supervision. She did her work on DLC film deposition using plasma focus device. Lee Yoong had a good time and company with Cindy2, Jerlene and other TERP students working around along with her. She did an elaborate study on DLC thin films deposition and their characterization using many characterizing tools. AE Thesis Title: Deposition of Carbon Thin Films Using Dense Plasma Focus Device Abstract of AE Thesis: In this work, the dense plasma focus (DPF) device was used to deposit amorphous diamond-like carbon thin films on silicon (100), glass and corning substrates using graphite fitted to the anode top. Substrates are placed at a distance of 120 mm from the anode (target). Other parameters include the number of focus shots (5, 10 and 15) and the filling gas pressures of neon (3.0, 4.0 and 5.0 mbar). Shadowgraphy study is performed to investigate whether the current sheath is symmetrical during axial and radial phases as well as to outline the thin film deposition process. The shadowgraphy results showed that the current sheath of the DPF remains highly symmetrical even of graphite fitted anode. Shadowgraphs also showed the graphite ablation and neon ionization wave front helping us in outlining the deposition process. The qualitative understanding of the deposition process was used in the analysis and interpretation of the results obtained from various characterization techniques. XRD analysis showed that the deposited films are amorphous in nature. Thickneses of the deposited films are found to range from 0.1 to 0.3 μm. FTIR analysis showed that the deposited films are hydrogenated with stretching modes of both sp3 CH2 and sp3 CH3. Raman spectroscopy was used to determine the degree of diamond-like character (i.e. the sp3 content of the deposited films). Raman results showed that films deposited at the outermost position have higher sp3 content as compared with those deposited at the off-center position and the highest sp3 content obtained is about 85%.
Publications: 1. L.Y. Soh, P. Lee, X. Shuyan, S. Lee, and R.S. Rawat, Shadowgraphic Studies of DLC film deposition process in Dense Plasma Focus Device, IEEE Transactions on Plasma Science, Vol 32(2), 448 (2004). 2. R.S. Rawat, R.S.V. Joseph, W.L. Clarissa, L.Y Soh, P. Arun, A.G. Videshwar, W.M. Chew, V. Aggarwal, P.Lee and S. Lee, Application of Dense Plasma Focus device for thin film deposition and modification, Accepted for presentation at First Cairo Conference on Plasma Physics and Applications, Oct 11-15, 2003 (to be published in Conf. proceedings). 3. R.S. Rawat, L.Y. Soh, A. Patran, P. Lee, T.L. Tan, S.V. Springham and S.Lee, Deposition of DLC thin film using single shot and repetitive plasma focus device, Submitted for publication.
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Happy, a student from School of Materials Engineering, NTU, worked for his Final Year Project (2003-04) with us (myself and Ast/P Paul Lee) at our Laser Technology Lab on magnetic nano-particle syntheis using Pulsed Laser Ablation. His main supervisor was A/P R. V. Ramanujan from SME/NTU. Happy is a keen and independent learner with high degree of motivation and enthusiasm to perform well. He was one of the best undergraduate students I ever worked with. I enjoyed working with him as could come out with his own understanding of his results. AE Thesis Title: Synthesis of FeCo Nanoparticles by Pulsed Laser Deposition Abstract:
Publications: 1. Happy, R.S. Rawat, R.V. Ramanujan, P. Lee, A. Patran, T.L. Tan, S.V. Springham and S. Lee, Synthesis of FeCo Nanoparticles by Pulsed Laser Deposition, 30th EPS Conference on Controlled Fusion and Plasma Physics, Imperial College, London, 28 June- 2 July 2004.
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K.S. Gan, Thomas another student of A/P R.V. Ramanujan from School of Materials Engineering, NTU who worked for his Final Year Project (2003-04) with me at our Plasma Radiation Source Lab on magnetic thin film deposition using plasma focus device. His main supervisor was A/P R. V. Ramanujan from SME/NTU. Thomas got many interesting results on the deposition of FeCo and Fe thin films. I liked his casual attitude but yet to keep the constant pace of work throughout the year AE Thesis Title: Abstract: Publications: 1. K.S. Thomas Gan, R. S. Rawat, R.V. Ramanujan, P. Lee, A. Patran, S. V. Springham, T. L. Tan, and S. Lee, Deposition of nano-phase FeCo thin films using plasma focus device, 30th EPS Conference on Controlled Fusion and Plasma Physics, Imperial College, London, 28 June- 2 July, 2004.
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Chin Voon Siong, registered with A/P Wong Chee Cheong towards his Final Year Project (2003-04) worked, also worked with us for the deposition and characterization of high-K thin films of HfO2 using pulsed laser deposition. Voon Siong obtained some interesting results to control the crystalline phase induction temperature. AE Thesis Title: Abstract: Publications: 1. V.S. Chin, L.H. Wong, C.C. Wong, C.K.P. Lee, A. Patran and R.S. Rawat, The Effects of Laser Pulse Energy on the Crystallization Temperature of HfO2 Thin Films in Pulsed Laser Deposition, Accepted for Oral presentation at Thin Film 2004, Singapore, July 12-16, 2004.
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Aditya Sethia did his final year project (2003-04) with us on pulsed laser depositon of metallic thin films. His main supervisor was A/P Wong Chee Cheong from SME/NTU. AE Thesis Title: Abstract:
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Ó Rajdeep Singh Rawat, Natural Sciences and Science Education, National Institute of Education Updated on 3 Aug 2004 Contact │ rsrawat@nie.edu.sg |
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