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Patents, Publications List for Centre for Optoelectronics(COE)-2002-2003

January 2003 - November 2003

Patents Granted

1.   X. Zhang and SJ Chua, Method of Fabricating Group III Nitride-based semiconductor Device. US Patent No: US 6,524,932 B1; 25 Feb 2003

2.   Chua Soo Jin, Peng Li, Maosheng Hao and Zhang Ji, Forming InN and InGaN quantum dots grown by MOCVD, date granted 11 Nov 2003, USA Patent No. :6645885 B2.

 

Patents Applied

  1. Z.L. Miao, S.J. Chua, Thwin Htoo, S. Tripathy and Chen Peng ,  Improved buffer for semiconductor structures, Patent Application No. 200301905-6 (5 April 2003).
  2. Chua SJ and Li BJ, High carrier injection optical waveguide switch – Suitable for 1.3 mm and 1.55 mm wavelength range for 2 inputs and 2 outputs. Filed US PTO 31 July 01, Filing 27 Aug 01, US Application no. 09/917,928, Filing date: 31 July 2002 . Publication No. is US-2003-0026523-A1

 

 International Refereed Publications (January 2003 to May 2003)

  1. RD Yang, S Tripathy, FEH Tay, LM Gan and SJ Chua, “Photoluminescence and micro- Ramam scattering in Mn-doped ZnS nanocrystalline semiconductors”, J. Vac. Sci. Technol. Vol. B 21(3), pp. 984 – 988, (2003) 

  2. B. J. Li, S. J. Chua, Y Nikolai, L. S. Wang and E. K. Sia, “Properties of Schottky contact of Titanium on low doped p-type SiGeC alloy by rapid thermal annealing, Solid St. Electron., Vol. 47, pp. 602 -605, (2003)

  3. P. Chen, S. J. Chua, and Z. L. Miao, Photoluminescence of InGaN/GaN multiple quantum wells originating from complete phase separation, J. Appl. Phys., Vol 93, No 5, pp. 2507-2511, (2003) 

  4. Su Lu, Qu-Li Fan, Soo-Jin Chua and Wei Huang, “Synthesis of conjugated-ionic block copolymers by controlled radical polymerization”. MacroMolecules, Vol. 36, pp. 304 -310, (2003)

  5. L. Ke, K.R. Zhang, N. Yakovlev, S. J. Chua and P. Chen "Secondary ion mass spectroscopy study of failure mechanism in organic light emitting devices", Materials Science and Engineering B, Vol. 97, pp. 1-4, (2003)

  6. M.A. Rana, H. W. Choi, M. B .H. Breese, T. Osipowicz, S. J. Chua and F. Watt, “A study of the decomposition of GaN during annealing over a wide range of temperatures”, Mat. Re. Soc. Symp. Proc. Vol. 742, pp. L11.28.1 - L11.28.6 (2003)

  7. T. Yuan, S. J. Chua and Y. X. Jin, “Analysis of the detectivity for triple-layer heterojunction GaSb/GaInAsSb infrared detectors”, Microelectronics Journal, Vol. 34,  pp. 305 – 312 (2003)

  8. M. A. Rana, T. Osipowicz, H. W. Choi, M. B. H. Breese, F. Watt and S. J. Chua, “Stoichiometric and structural alterations in GaN thin films during annealing”, Appl.  Phys. A. (Mtls. Sci. and Processing), Vol. 76, pp. 103 – 108, (2003)

 

     Conference Publications

  1. M.A. Rana, T. Osipowicz, H.W. Choi, M.B.H. Breese, F.  Watt and S.J. Chua, “Effects of Plasma Etching on GaN Thin Films”, 2nd International Conference on Materials for Advanced Technologies and IUMRS, 29 June - 4 July, 2003 , Suntec City , Singapore

 

International Refereed Publications (January 2002 to December 2002)

  1. S. J. Chua, L. Ke, R. S. Kumar and K Zhang, “Stabilization of electrode migration in polymer electroluminescent devices”, Appl. Phys. Letts., Vol. 81, No. 6, pp 1119 – 1121, (2002)
  2. W. Zhou, S. J. Chua, J. R. Dong and J. H. Teng, “MOCVD growth of GaInNAs/GaAs multiple quantum wells with nitrogen composition fluctuation”, J. Crystal Growth., Vol. 242, pp 15-19, (2002)
  3. H. W. Choi, S. J. Chua and S. Tripathy, “Morphological and structural analyses of plasma-induced damage to n-type GaN”, J. Appl. Phys., Vol. 92, No. 8, pp 4381-4385 (2002)
  4. R. S. Kumar, M Auch,  Eric Ou, E. Guenther , S. J. Chua, “Low Moisture Permeation Measurement through Polymer Substrates for Organic Light Emitting Devices”, Thin Solid Films, Vol. 417/1-2  pp.120-126 , 2002
  5. S.K. Donthu, D.Z. Chi, S. Tripathy, A.S. Wong and S.J. Chua, “Micro-Raman spectroscopic investigation of NiSi films formed on BF2-,B-and non-implanted (100) Si substrates" Appl. Phys. A , November 22, 2002 .
  6. D.Z. Chi, W.D. Wang and S.J. Chua, “Reverse current transport mechanism in shallow junctions containing silicide spikes”, J. Appl. Phys., Vol. 92, No. 12, pp. 7532-7535, 2002
  7. A. S. W. Wong, D. Z. Chi, M. Loomans, D. Ma, M. Y. Lai, W. C. Tjiu, S. J. Chua, C. W. Lim and J. Greene, “ F-enhanced morphological and thermal stability of NiSi films on BF2+ - implanted Si (001)”, Appl. Phys. Letts., Vol 81, No 27, pp.5138 – 5140, 2002
  8. M. Hao, J. Zhang, X. H. Zhang, and S. J. Chua, “Photoluminescence studies on InGaN/GaN multiple-quantum-wells with different degree of localization”, Appl. Phys. Letts. Vol 81, No. 27, pp. 5129 -5131 (2002)
  9. Y.Z. Zeng, S.J. Chua and P. Wu, “On the Prediction of Ternary Semiconductor Properties by Artificial Intelligence Methods”, Chem Mater., Vol. 14 (7), 2989-2998 ,  2002
  10. J. H. Teng, J. R. Dong, S. J. Chua, M. Y. Lai and B. C. Foo, “Controlled group V intermixing in InGaAsP quantum well structures and its applicaton to the fabrication of two section tunable lasers”, J . Appl Phys, Vol. 92. No. 8. pp. 4330 - 4335, 2002
  11. E. K. Sia, S. J. Chua, H. L. Hartnagel and P. H. Handel, “Quantum 1/f noise in epitaxial overgrown GaN : Piezoelectric effect” Semicond. Sci. Tech., Vol. 17, pp. 617 –620, 2002
  12. M. D. J. Auch, O. K. Soo, G. Ewald, Chua Soo-Jin, “Ultrathin glass for flexible OLED application”,  Thin Solid Films, 2002, Vol. 417, pp. 47-50, 2002
  13. K. K. Lin, S. J. Chua, W. Wang , Degradation mechanisms in electrically stressed organic light-emitting devices, Thin Solid Films, 2002, Vol. 417, pp. 36-39, 2002
  14. B. L. Low, F. R. Zhu, K. R. Zhang, S. J. Chua, An in situ sheet resistance study of oxidative-treated indium tin oxide substrates for organic light emitting display applications, Thin Solid Films, 2002, Vol. 417, pp. 116-119, 2002.
  15. Su Lu, Qu-Li Fan, Shao-Yong Liu, Soo-Jin Chua and Wei Huang, “Synthesis of Conjugated-Acidic Block Copolymers by Atom Transfer Radical Polymerization”, MacroMolecules, Vol. 35, pp. 9875 – 9881, (2002)
  16. S. Lu, Q. L. Fan, Y. Xiao, S. J. Chua, W. Huang, Synthesis and characterization of a novel conjugated polymer containing PPV oligomer and fluorene, Thin Solid Films,  2002, Vol. 417, pp. 215-220, 2002
  17. G. Zeng, S. J. Chua, W. Huang, Influence of donor and acceptor substituents on the electronic characteristics of poly(fluorene-phenylene), Thin Solid Films, 2002, Vol. 417, 194-197, 2002
  18. S. Tripathy, S. J. Chua, P. Chen and Z. L. Miao, “Micro-Raman investigation of strain in GaN and AlxAl1-xN/GaN heterostructures grown on Si(111)”, J. of Appl. Phys. Vol. 92, No. 7, pp 3503 –3510, (2002)
  19. Q. Shi, S. J. Xu, M. H. Xie, S. Y. Tong, X. H. Zhang, W Liu and S. J. Chua, “Strong Screening Effect of Photo-Generated Carriers on Piezoelectric Field in In0.1Ga0.87N/In0.03Ga0.97N Quantum Wells”, Jpn. J. Appl. Phys.  Vol.41. No.10A  pp.L1093 - L1095 (2002)
  20. J. F. Pan, S. J. Chua and W. Huang, "Conformational analysis (ab initio HF/3-21G*) and optical properties of poly(thiophene-phenylene-thiophene) (PTPT)," Chem. Phys. Lett. 363, pp.18-24, (2002)
  21. J. F. Pan, X.Y. Hou, S. J. Chua, Wei Huang, "Theoretical study of the structure and torsional potential of substituted biphenylenes and their fluorene derivatives," Phys. Chem. Chem. Phys. 4, pp. 3959-3964 (2002)
  22. W. Wang, S. F. Lim and S. J. Chua, “Bubble formation and growth in organic light-emitting diodes composed of a polymeric emitter and a calcium cathode”, J. Appl. Physics., Vol. 91, No. 9, pp 5712 – 5715, (2002)
  23. S. Tripathy, S. J. Chua and A. Ramam , “Electronic and vibronic properties of n-type GaN: the influence of etching and annealing”,J. of Physics: Condensed Matter, 2002
  24. J. H. Teng, J. R. Dong, S. J. Chua, D. A. Thompson, B. J. Roninson, A. S. W. Lee, J. Hazell, I. Sproule, “Impurity-free intermixing in compressively strained InGaAsP multiple quantum well structures”, Matls Sci. Semicond. Processing, Vol. 4 , pp 621-624, 2002
  25. L. Ke, P. Chen and S. J. Chua. “Photoluminescence degradation in organic light-emitting devices”, Appl. Phys. Letts., Vol. 80, No. 4, pp. 697-699, 2002
  26. L. Ke, S. J. Chua, K. Zhang and N Yakovlev, “Degradation and failure of organic light-emitting devices”, Appl. Phys. Letts., Vol. 80, No. 12, pp. 2195-2197, 2002
  27. L. Ke, S. J. Chua, K. Zhang and P Chen, “Bubble formation due to electrical stress in organic light emitting devices”, Appl. Phys. Letts., Vol. 80, No. 2, pp. 171-173, 2002
  28. Z. C. Feng, X. Zhang, S. J. Chua, T. R. Yang, J. C. Deng and G. Xu, “Optical and Structural Properties of GaN Materials and Structures Grown on Si by Metalorganic Chemical Vapor Deposition", Thin Solid Films, Vol. 409, pp. 15 –22, 2002.
  29. W. H. Sun, S. J. Chua, L. S. Wang and X. H. Zhang, “Outgoing multiphonon resonant Raman scattering and luminescence in Be and C implanted GaN”, J. Appl. Phys., vol. 91, No. 8, pp. 4917-4921, 2002
  30. B. J. Li and S. J Chua, “High carrier injection optical switch based on two-mode interference in SiGe alloy,” Appl. Phys. Lett., Vol. 80, No. 2, pp. 180-183, 2002.
  31. B. J. Li and S. J. Chua, “Reflection-type optical waveguide switch with bow-tie electrode,” J. Lightwave Technol., Vol. 20, No. 1, pp. 65-70, Jan. 2002
  32. B. J. Li, S. J. Chua, Christopher W. Leitz, and E.A. Fritzgerald, “1´2 optical waveguide filters based on multi-mode interference for 1.3- and 1.55- mm operation,” Opt. Eng. Vol. 3, No. 3, pp. 723-727, 2002.
  33. S. Tripathy, S. J. Chua, A. Ramam , E. K. Sia, J. S. Pan and R. Lim,“Electronic and vibronic properties of Mg-doped GaN: The influence of etching and annealing”, J. Appl. Phys. Vol. 91, No. 5, pp 3398-3407, 2002
  34. S. Tripathy, S. J. Chua, M. S. Hao, E. K. Sia, A. Ramam , J. Zhang, W. H. Sun and L. S. Wang, “Micro-Raman scattering in laterally epitaxial overgrown GaN”, J. Appl. Phys., Vol. 91, No. 9, pp. 5840 –5852, 2002.
  35. J. Zhang, M. Hao, P. Li and S. J. Chua, “InGaN self-assembled quantum dots growb by metalorganic chemical-vapour deposition with indium as antisurfactant”, Appl. Phys. Letts., Vol. 80., No. 3, pp. 485-487, 2002.
  36. C. W. Cheah, G. Karunasiri, L. S. Tan and L. F. Zhou, “Responsivities of n-type GaAs/InGaAs/AlGaAs step multiple-quantum-well infrared detectors” Appl. Phys. Lett., Vol. 80, No. 1, pp.145-147, 2002.
  37. L. S. Tan, L. C. P. Tan, M. S. Leong, R. G. Mazur and C. W. Ye, “Characterization of ultrashallow dopant profiles using spreading resistance profiling”, J. Vac. Sci. Technol., Vol. 20, No. 1, pp. 483-487, 2002.
  38. C. W. Cheah, L. S. Tan and G. Karunasiri, “Application of analytical k.p model with envelope function approximation to intersubband transitions in n-type semiconductor Γ quantum wells”  J. Appl. Phys., Vol. 91, No. 8, pp.5105-5115, 2002.
  39. C. W. Cheah, G. Karunasiri and L. S. Tan, “Analysis of AlGaAs/GaAs/InGaAs n-type step multiple quantum wells for the optimisation of normal incident absorption”, Semicon. Sci. Technol., Vol. 17, pp. 1028-1037, 2002.
  40. Low, K B, H Gong and E F Chor, “Annealing Effects on Contact Properties of Aluminum Doped Zinc Oxide Thin Films,” International Journal of Modern Physics B, Vol.16, No.1-2, p.294-301, 2002.
  41. Chor, E F and J Lerdworatawee, “Quasi-Two-Dimensional Transmission Line Model (QTD-TLM) for Planar Ohmic Contact Studies,” IEEE Transactions on Electron Devices, Vol.49, No.1, p.105-111, 2002.
  42. Ong, S Y, E F Chor, Y K Leung, J Lee, W S Li, A See and L Chan, “Steep retrograde indium channel profiling for high performance nMOSFETs device fabrication,” Microelectronics Journal, Vol.33, No.1-2, p.55-60, 2002.
  43. Shi, J, E F Chor and W K Choi, “ICP etching of RF sputtered and PECVD silicon carbide films,” International Journal of Modern Physics B, Vol.16, p.1067-1071, 2002.
  44. Ong, S Y, E F Chor, J Lee, A See and L Chan, “Impact of Indium and Boron Interaction on Device Performance for Short and Narrow Channel n-Metal Oxide Semiconductor Field Effect Transistors,” Journal of the Electrochemical Society, Vol.149, No.8, G485-G489, 2002.
  45. Shi, J, W K Choi and E F Chor, “ICP etching and structure study of PECVD silicon carbide films,” International Journal of Modern Physics B, Vol.16, No.28-29, p.4318-4322, 2002.
  46. Chua, CS, E F Chor, F Goh, A See and L Chan, “Investigation of active Si pitting and its impact on 0.15 and 0.30 um n-type metal-oxide-semicoductor and p-type metal-oxide-semiconductor transistors,” Journal of Vacuum Science & Technology B, Vol.20, No.6, p.2288-2294, 2002.

 

 Conference Publications

  1. S. J. Chua, L. Ke, R. S. Kumar and Eric Ou, “Degradation Mechanisms in OLED”, Invited Paper, ASID 2002, The 7th Asian Symposium on Information Display, York Hotel, Singapore, 2-4 September. Proceedings pp183-186.
  2. B. L. Low, F. R. Zhu, K. R.  Zhang, and S. J. Chua, “Improvement of hole-injection in polymer electroluminescent devices by reduction of oxygen deficiency near the ITO surface”, 2002 International Conference on the Science and technology of Emissive Displays and Lighting, September 23-26, 2002, Ghent, Belgium
  3. X. H. Zhang, S. J. Chua, W. Liu, and P. Li, “Anomalous photoluminescence behaviors in InGaN/GaN multiple quantum wells”, The 26th International Conference on the Physics of Semiconductors, Edinburgh, UK, 29 July-02 Aug 2002.
  4. C. B. Soh, D. Z. Chi, H. F. Lim, S. J. Chua," Comaparative study of trap levels observed in undoped and Si-doped GaN", MRS Spring Meeting, April 1-5, 2002, CA, San Francisco, San Francisco Marriott and Argent Hotel.Conference proceedings, Vol 719.
  5. A. Ramam , S. Tripathy and S.J. Chua, "Interplay of Defects, Microstructures and Surface Stoichiometry during Plasma Processing of GaN", MRS Spring meeting, April 1-5, 2002, San Francisco, CA, USA. Conference proceedings, Vol. 719.
  6. D. Ma, D. Z. Chi, W. D. Wang, A. S. W. Wong and S. J. Chua, “Suppresion of NiSi to NiSi2 transition using very short-time RTA silicidation, MRS Spring Meeting, April 1-5, 2002, CA, San Francisco, San Francisco Marriott and Argent Hotel.Conference proceedings, Vol 719.
  7. S. K. Donthu, D. Z. Chi, S. Tripathy, A. S. W. Wong and S. J. Chua, “Micro- Ramam spectroscopic study of nickel silicide films”, MRS Spring Meeting, April 1-5, 2002, CA, San Francisco, San Francisco Marriott and Argent Hotel.Conference proceedings, Vol 719.
  8. A. S. W. Wong, D. Z. Chi, M. E. Loomans, D. Ma, W. C. Tjiu and S. J. Chua, “Enhanced thermal stability of NiSi films on 20 keV BF2+ implanted (1000) Si”, MRS Spring Meeting, April 1-5, 2002, CA, San Francisco, San Francisco Marriott and Argent Hotel.Conference proceedings, Vol 719.
  9. S. Tripathy, S. J. Chua and B Z. Wang, “Micro- Ramam scattering in self-assembled InAs and InP quantum dots”, MRS Spring Meeting, April 1-5, 2002, CA, San Francisco, San Francisco Marriott and Argent Hotel.Conference proceedings, Vol 719.
  10. X. H. Zhang, J. R. Dong and S. J. Chua, “Photoluminescence and time-resolved photoluminescence studies of self-assembled InAs quantum dots”, MRS Spring Meeting, April 1-5, 2002, CA, San Francisco, San Francisco Marriott and Argent Hotel.Conference proceedings, Vol 719.
  11. C. L. Lee, E. F. Chor and L. S. Tan, “Investigation of plasma surface treatment and its sequence on the Ohmic contact on p-GaN” 44th 2002 Electronic materials Conf., June 26-28, 2002, Univ. of California, Santa Barbara, California, USA. pp.84.
  12. H. T. Wang, L. S. Tan and E. F. Chor, ”Optical and electrical characterization of annealed Si-implanted GaN” MRS Spring Meeting, April 21-25, 2003, San Francisco Marriot and Argent Hotels, San Francisco, California, USA, Symposium C Abstracts, pp. 59.
  13. L. T. Tan, P. Chen and S. J. Chua, “Impact of V/III flux ratio and Si-doping concentration on GaN grown by metalorganic chemical-vapor deposition on sapphire substrate”, 2002 IEEE International Conference on Semiconductor Electronic (ICSE2002), December 19-21, 2002, The Gurney Resort Hotel & Residences, Penang, Malaysia.
  14. M.A. Rana, T. Osipowicz, H.W. Choi, M.B.H. Breese, F.  Watt and S.J. Chua, “Effects of Plasma Etching on GaN Thin Films”, 2nd International Conference on Materials for Advanced Technologies and IUMRS, 29 June - 4 July, 2002 , Suntec City , Singapore .
  15. Chua, CS, E F Chor, CH Ang, J Yu, Y Pradeep, A See and L Chan, “Characterisation of micortrenching on 0.13um NMOS and PMOS transistors using DAHC and Edge FN Stress,” 2002 International Symposium on Plasma and Process Induced Damage (2002 P2ID), 5-7 June 2002, Maui, Hawaii, United States, pp. 110-113, 2002.
  16. Shi, J, E F Chor and W K Choi, “ICP etching and structure study of PECVD silicon carbide films,” 8th IUMRS International Conference on Electronic Materials||, 10-14 June 2002, Xian, China, pp. 203, 2002.

   


 

  
 

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