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Patents, Publications List for Centre for Optoelectronics(COE)-2007

Publications (Jan 2007 – December 2007)

International Refereed Publications

Publication list 2007

1.      M Sinha, E F Chor and C.F. Tan, "Schottky barrier height tuning of silicide on Si1-xCx," APPLIED PHYSICS LETTERS, vol. 91, art. 242108 (2007).

2.      C Liu, E F Chor, L S Tan and A Du, "Epitaxial growth of Sc2O3 films on GaN (0001) by pulsed laser deposition," J VACUUM SCIENCE & TECHNOLOGY B, vol. 25, p. 754-759 (2007).

3.      C Liu, E F Chor and L S Ta n , "Band offset measurements of the pulsed-laser-deposition-grown Sc2O3(111)/GaN(0001) heterostructure by x-ray photoelectron spectroscopy,” PHYSICA STATUS SOLIDI B, vol. 4, p. 2330-2333 (2007).

4.      C Liu, E F Chor and L S Tan, "Enhanced device performance of AlGaN/GaN HEMTs using HfO2 for surface passivation and gate oxide," SEMICONDUCTOR SCIENCE AND TECHNOLOGY, vol. 22, p. 522-527 (2007).

5.      H T Wang, L S Tan and E F Chor, "AlGaN/GaN high electron mobility transistors with implanted ohmic contacts," THIN SOLID FILMS, vol. 515, p. 4476-4479 (2007).

6.      J Lim, E F Chor and L S Tan, "Effects of chemical and plasma surface treatments on the O2-annealed Ni/Au contact to p-GaN," THIN SOLID FILMS, vol. 515, p.  4471-4475 (2007).

7.      C Liu, E F Chor and L S Tan, "Improved DC performance of AlGaN/GaN high electron mobility transistors using hafnium oxide for surface passivation," THIN SOLID FILMS, vol. 515, p.  4369-4372 (2007).

8.      J. Kong, C. C. Chan, D. Y. Tang, N. Xiang, H. F. Liu, M. Pessa, L. J. Qin, "Comparative studies of passively mode-locked Nd:GdYVO4 laser and Nd:GdVO4 laser with semiconductor saturable absorber mirrors," Journal of optoelectronics and advanced materials, 9, 3571-3575 (2007).

9.      H. F. Liu, S. J. Chua, G. X. Hu, H. Gong, and N. Xiang, “Effects of substrate on the structure and orientation of ZnO thin-film grown by RF-magnetron sputtering”, J. Appl. Phys., 102, 083529 (2007).

 

10.  H. F. Liu, S. J. Chua, G. X. Hu, H. Gong and N. Xiang, “Annealing effects on electrical and optical properties of ZnO thin-film samples deposited by radio frequency-magnetron sputtering on GaAs (001) substrate”, J. Appl. Phys., 102, 063507 (2007).

 

11.  H. F. Liu, S. J. Chua and N. Xiang, “On overannealing of GaIn(N)As / Ga(N)As multiple quantum wells grown by molecular beam epitaxy”, J. Appl. Phys., 102, 013504 (2007).

 

12.  N. Xiang, F. Lin, H. P. Li, H. F. Liu, W. Liu, W. Ji, and S. J. Chua, “GaN-based semiconductor saturable mirror operating around 415 nm”, Thin Solid Film 515, 4484-4487 (2007).

 

13.  H. F. Liu, S. J. Chua, G. X. Hu, H. Gong and N. Xiang, “Radio-frequency magnetron sputtering and wet thermal oxidation of ZnO thin film”, J. Appl. Phys., 102, 043530 (2007).

 

14.  Fen Lin, Ning Xiang, Xin Cai Wang, Jesudoss Arokiaraj, Wei Liu, Hong Fei Liu, and Soo Jin Chua, “Design and Optimization of GaN-based Semiconductor Saturable Absorber Mirror Operating at Around 415 nm”, Mater. Res. Soc. Symp. Proc. Vol. 955, 0955-I12-01 (2007).

 

15.  H. F. Liu, S. J. Chua and N. Xiang, “Growth temperature- and thermal anneal-induced crystalline reorientation of aluminum on GaAs (100) grown by molecular beam epitaxy”, J. Appl. Phys., 101, 053510 (2007).

 

16.  H. F. Liu and N. Xiang, “Influence of GaNAs strain compensation layers upon annealing of GaIn(N)As / GaAs quantum wells”,  Thin Solid Film 515 (10), 4462-4466 (2007).

 

17.  CHUAH Chong Wei, XU Baoxi, TAN Tien Siong, XIANG Ning, CHONG Tow Chong, “Tunable GHz Repetitive ps pulse InGaN laser”, IEEE Photonics Technology Letters 19(2), 70-72 (2007).

 

18.  H. F. Liu, N. Xiang, H. L. Zhou, S. J. Chua, P. Yang, and H. O. Moser, “Anneal-induced structural changes of GaIn(N)As / Ga(N)As multiple quantum wells grown by molecular beam epitaxy”, J. Crystal Growth 301-302 548-551 (2007).

19.  N. Xiang, H. F. Liu, J. Kong, D. Y. Tang, M. Pessa, “Monolithic semiconductor saturable absorber mirror with strain-compensated GaInAs/GaAsP quantum wells”, J. Crystal Growth 301-302 989-992 (2007).

20.  L. Zhang, T. Luo Y. Yue, C. Yu, and A.E. Willner, “Photosensitivity-enabled dispersion controllability for quasi-phase-matching in photonic crystal fibers,” Optics Letters, vol. 32, pp. 3498-3500, December 2007

21.  L. Zhang, T. Luo, C. Yu, W. Zhang, and A.E. Willner, “Pattern dependence of data distortion in slow-light elements,” IEEE/OSA Journal of Lightwave Technology, vol. 25, pp. 1754-1760, July 2007

22.  Y. Wang, C. Yu, L.-S. Yan, A.E. Willner, R. Roussev, C. Langrock, M.M. Fejer, Y. Okawachi, J.E. Sharping, and A.L. Gaeta, “44-ns continuously-tunable dispersionless optical delay element using a PPLN waveguide with a two pump configuration, DCF, and a dispersion compensator,” IEEE Photonics Technology Letters,  vol. 19, pp. 861-863, June 2007

23.  C. Yu, Z. Pan, T. Luo, Y. Wang, L. Christen, and A.E. Willner, “Beyond 40-GHz return-to-zero optical pulse train generation using a phase modulator and polarization-maintaining fiber,” IEEE Photonics Technology Letters,  vol. 19, pp. 42-44, January 2007

24.  C. Yu, T. Luo, L. Zhang, and A.E. Willner, “Data pulse distortion induced by a slow light tunable delay line in optical fiber,” Optics Letters, vol. 32, pp. 20-22, January 2007

25.  HJ Oh, KJ Choi, WY Loh, Thwin Htoo, SJ Chua and BJ Cho, Integration of GaAs epitaxial layer to Si-based substrate using Ge condensation and low-temperature migration enhanced epitaxy techniques, J. Appl. Physics, vol. 102, p. 054306, (2007)

26.  P Chen, AO Chen, SJ Chua and JN Tan, Growth and Optical proerties of Highly Uniform and Periodic InGaN Nanostructures, Advanced Materials, vol. 19, pp.1707 – 1710 (2007)

27.  CB Tay, HQ Le, SJ Chua and KP Loh, Empirical Model for Density and Length Prediction of ZnO Nanorods on GaN Using Hydrothermal Synthesis, Journal of The Electrochemical Society, vol.154 (9), pp. K45-K50 (2007)

28.  CD Xu, T Mei, MK Chin, JR Dong, SJ Chua, Built-in electric field enhancement/retardation on intermixing, Appl. Phys. Lett., vol. 91, p. 181111 (2007)

29.  AP Vajpeyi, SJ Chua, S Tripathy, EA Fitzgerald, Effect of carrier density on surface morphology and optical properties of nanoporous GaN prepared by UV assisted electrochemical etching”, Appl. Phys. Lett., vol. 91, p. 083110 (2007)

30.  D Sentosa, XH Tang, SJ Chua, Thermal Annealing Effect on GaNAs Epilayers with Different Nitrogen Compositions Grown by MOCVD, J. of Crystal Growth, vol. 307, pp. 229 – 234 (2007)

31.  H Hartono, CB Soh, SJ Chua and EA Fitzgerald, Annihilation of threading dislocations in strained relaxed nano-porous GaN template for high quality GaN growth, Phys. Stat. Sol. (c), vol. 4, No. 7, pp. 2572 – 2575 (2007)

32.  H Hartono, CB Soh, SJ Chua and EA Fitzgerald, Reduction of threading dislocation density in GaN grown on strain relaxed nanoporous GaN template, Applied Physics Letters ,Vol.90, p. 171917 (2007)

33.  H Hartono, P Chen, SJ Chua and EA Fitzgeralds, Growth of InN and its effect on InGaN epilayer by metalorganic chemical vapor deposition, Thin Solid Films, vol. 515, No. 10, pp. 4408 – 4411 (2007)

34.  H Hartono, CB Soh, SJ Chua and EA Fitzgerald, Fabrication and characterization of nano-porous GaN template for strain relaxed GaN growth, Phys. Stat. Sol. (b), vol. 244, No.6, pp. 1793 – 1796 (2007)

35.  HL Zhou, W Liu and SJ Chua, Normal incidence intersubband absorption in GaN/AlNsuperlattices grown on facet-controlled epitaxial lateral overgrown
GaN/sapphire templates, Jap. J of Applied Phys., vol. 46, No. 8A, pp. 5128 – 5130 (2007)

36.  HL Zhou, SJ Chua, H Pan, Y Zhu, T Osipowicz,  W Liu and KY Zang, YP Feng, CH Sow, Morphology Controllable ZnO Growth on Facet-Controlled Epitaxial Lateral Overgrown GaN/Sapphire Templates,  J of Phys. Chem. C, vol. 111, No. 17, pp. 6405 -6410 (2007)

37.  HL Zhou, H L, S J Chua, S Y Chew, H PAN, Y ZHU, Y P Feng, L S Wang, KY Zang, W Liu and S Tripathy, Characteristics of threading dislocations in ZnO grown on facet-controlled epitaxial overgrown GaN templates. Journal of Physics - Condensed Matter, 19, no. 35, p. 356203 (2007)

38.  HL Zhou, SJ Chua, KY Zang, LS Wang, S Tripathy, N Yakovlev and O Thomas, InGaN multiple quantum wells grown on ELO GaN templates and the optical properties characterization, J. Crystal Growth, vol. 298, pp. 511 – 514 (2007)

39.  HL Zhou, SJ Chua, H PaN, J Y Lin, Y P Feng, L S Wang, W Liu, KY Zang and S Tripathy, "Structural Properties of ZnO Grown on GaN/Sapphire Templates".  Electrochemical and Solid State Letters,  vol. 10, no. 3, pp. H98 H100 (2007)

40.  AO Chen, SJ Chua, GC Xing, W Ji, XH Zhang, JR Dong, LK Jian and EA Fitzgerald, “Two-dimensional AlGaInP/GaInP photonic crystal membrane lasers operating in the visible regime at room temperature”, Appl. Phys. Lett., vol. 90, p. 011113 (2007)

41.  L Ke, CL Huang, R Senthil, X Yang and SJ Chua, “Magnesium fluoride modified interfaces for organic light emitting diode”, Thin Solid Film, vol. 55 (7-8), pp. 3881-3886, (2007)

42.  CK Chia, SJ Chua, YJ Wang, AM Yong, SY Chow, “Impurity free vacancy disordering of InAs/GaAs quantum dot and InAs/InGaAs dot-in-a-well structures", Thin Solid Film, vol. 515 (7-8), pp 3927-3931, (2007)

43.  CK Chia, SJ Chua, JR Dong, and SL Teo, “Ultra-wide band quantum dot light emitting device by post-fabrication laser annealing", Appl. Phys. Lett., vol. 90, p. 061101 (2007)

44.  CK Chia, YW Zhang and SS Wong, AM Yong, SY Chow, SJ Chua and J Guo, Saturated dot density of InAs/GaAs self-assembled quantum dots grown at high growth rate, Appl. Phys. Lett., vol. 90, p. 161906 (2007)

45.  JH Teng, JR Dong, SJ Chua, BS Foo, MY Lai, YJ Wang, SS Ang and R Yin, Distributed Bragg reflector laser using buried SiO2 grating and self-aligned band gap tuning, Appl. Phys. Lett., vol. 90, p. 171107 (2007)

46.  S Tripathy, Vivian KX Lin, S Vicknesh, and SJ Chua, “Micro-Raman probing of residual stress in freestanding GaN-based micromechanical structures fabricated by a dry release technique”, Journal of Applied Physics, vol 101, pp 063525–1-4 (2007)

47.  S Vicknesh, S Tripathy, Vivian K. X. Lin, L S Wang, and SJ Chua, “Fabrication of deeply undercut GaN microdisk structures on silicon platforms”, Applied Physics Letters, vol. 90, 071906 (2007).

48.  C Vijilla, ZK, Chen, SJ Chua, “A study of charge transport in a novel electroluminescent poly (phenylene vinylene-co-fluorenylene vinylene) based ¶-conjugated polymer”,  Organic Electronics, vol. 8, pp. 8-13, (2007)

49.  AM Yong, CB Soh, XH Zhang, SY Chow and SJ Chua, “Investigation of V-defects formation in InGaN/GaN multiple quantum well grown on sapphire”, Thin Solid Films, vol. 515, pp. 4496-4500,(2007)

50.  CB Soh, SJ Chua, P Chen, DZ Chi, W Liu and H Hartono, “Deep level centers in InGaN/GaN heterostructure grown on sapphire and free-standing GaN”, Thin Solid Films, vol. 515, No. 10, pp. 4509 – 4513, (2007)

51.  KY Zang YD Wang, LS Wang and S Tripathy, SJ Chua and CV Thompson, “Nanoheteroepitaxy of GaN on a Nanopore Array of Si (111) surface”, Thin Solid Films, vol. 515, No. 10, pp. 4505 – 4508, (2007)

52.  Anna Marie Yong, CB Soh, SJ Chua, XH Zhang SY Chow and SJ Chua, Investigation of V-defect Formation in InGaN/GaN Multiple Quantum Wells Grown on Sapphire, Thin Solid Films, vol. 515, No. 10, pp.4496 – 4500, (2007)

53.  ST Tan, X W Sun, XH Zhang, SJ Chua, SY Chow, AM Yong, GQ Lo, and DL Kwong, “Self assembled ZnO hollow spheres and hexagonal stacking disks by metal organic chemical vapor deposition.” Int. J. Nanotechnol.  vol. 4, pp. 691- 697, (2007).

54.  H W Choi, KN Hui, PT Lai, P Chen, XH Zhang, JH Teng, S Tripathy, and SJ Chua, “Stimulated emission from freestanding GaN/Si microdisk structures” “Phys. Stat. Sol (c), vol. 4, pp 2358-2361 (2007).

Conference papers 2007

1.        SJ Chua, HL Zhou and W Liu, (11-22) Facet-controlled Epitaxial Lateral Overgrowth GaN/sapphire Templates, MRS Fall 2007, Thurs Nov 29, Session Q7, 10.45 -11.00 am, Location: Back Bay B (Sheraton).

2.        SJ Chua, M Wang and CV Thompson, Strong UV Emission from Electrodeposited ZnO Nanorods on Non-epitaxial Au coated Si(100), MRS Fall 2007, Mon Nov 26, Session L2: ZnO Nanowire Synthesis and Properties, 3.45 -4.00 pm, Location: Constitution A (Sheraton).

3.        F Lin, N Xiang, XC Wang, J Arokiaraj, W Liu, HF Liu and SJ Chua, Optimization of semiconductor saturable absorber mirror operating in blue/UV region”, European Optical Society (EOS) Conference on Trends in Optoelectronics, New Munich Trade Fair Centre, Munich, Germany, June 18-19, 2007 (oral presentation)

4.        F Lin, N Xiang, P Chen, SY Chow, SJ Chua, Study on morphology and optical properties of InGaN/GaN multiple quantum wells with different V-pits, 4th International Conference on Materials for Advanced Technologies (ICMAT2007), Suntec Singapore International Convention & Exhibition Center, Singapore, July 1-6, 2007 (oral presentation)

5.        F Lin, N Xiang, P Chen, SY Chow, SJ Chua, V-Pits’ morphologies and the related optical properties of InGaN/GaN multiple quantum wells”, 7th International Conference of Nitride Semiconductors (ICNS-7), MGM Grand Hotel, Las Vegas, Nevada, September 16-21, 2007 (poster presentation)

6.        F Lin, N Xiang, P Chen, SJ Chua, A Irshad, S Roither, A Pugzlys, A Baltuska, Demonstration and control of the fast absorption recovery times of the InGaN/GaN quantum well saturable absorbers”, SPIE Photonics Asia 2007, Jiuhua Grand Convention and Exhibition Center, Being Jing, Nov 11-15, 2007 (accepted as an oral presentation)

7.        CK Chia, YW Zhang, SS Wong, SJ Chua, AM Yong and SY Chow , “Testing the upper limit of InAs/GaAs self-organized quantum dots density by fast growth rate”, E-MRS 2007 Spring meeting, Strasbourg, France, 28 May - 1 June 2007.

8.        F Tian and E F Chor, "Role of Ni in Rh/Au-Based Schottky contact to n-GaN," 212th Meeting of the Electrochemical Society,  7 - 12 Oct 2007, Hilton Washington, Washington, DC, United States.

9.        F Tian and E F Chor, "Rhodium-based Schottky contacts on n-doped Gallium Nitride," 7th International Conference on Nitride Semiconductors (ICNS-7), 16 - 21 Sep 2007, MGM Grand Hotel, Las Vegas, United States.

10.    C Liu, E F Chor and L S Tan, "Comparative Studies on AlGaN/GaN MOS-HEMTs with High-k HfO2 or Epitaxial Sc2O3 Gate Oxide," 7th International Conference on Nitride Semiconductors (ICNS-7), 16 - 21 Sep 2007, MGM Grand Hotel, Las Vegas, United States).

11.    L Huang, E F Chor, YH Wu and Z Guo, "Double-walled carbon nanotube field effect transistor with Ruthenium contacts," Abstracts International Conference on Materials andAdvanced Technologies (ICMAT) 2007 - Symposium E Nanodevices and Nanofabrication, p.63,

12.    C Liu, E F Chor and L S Tan, "Device Characteristics of the AlGaN/GaN MOS-HEMT withEpitaxial Sc2O3 Gate Dielectric," Abstracts International Conference on Materials and Advanced Technologies (ICMAT) 2007 - Symposium E Nanodevices and Nanofabrication, p. 50, 1 - 6 Jul 2007, Suntec Singapore International Convention and Exhibition Centre, Singapore.

13.     C. Yu, J. Yang, Z. Li, and Y. Wang, “Multi-channel 160-GHz pulse generator using a 40-GHz phase modulator and two stages of PM fiber,” 6th International Conference on Information, Communications and Signal Processing (ICICS) ’07, Paper P0848, pp. 1-4, Singapore, December 2007

14.    C. Yu, Z. Li, J. Yang and Y. Wang, “Multi-channel high-speed optical pulse train generation based on phase modulation at half frequency,” Conference on Lasers and Electro-Optics (CLEO) ’07, Paper CMJJ7, pp. 1-2, Baltimore, MD, USA, May 2007

15.    Z. Li, Y.J. Wen, C. Yu, W. Rong, Y. Wang, and T.H. Cheng, “Optimizing Raman/EDFA hybrid amplifier based on dual-order stimulated Raman scattering of a single pump,” Conference on Lasers and Electro-Optics (CLEO) ’07, Paper JTuA63, pp. 1-2, Baltimore, MD, USA, May 2007

16.    Y. Dong, Z. Li, C. Yu, Y.J. Wen, Y. Wang, C. Lu, W. Hu and T.H. Cheng, “Generation of multi-channel short-pulse sources using nonlinear optical loop mirror based on photonic crystal fiber,” Conference on Optical Fiber Communication (OFC) ’07, Paper JWA9, pp. 1-3, Anaheim, CA, USA, March 2007

 

 

  

   

 

  
 

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