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Staff Mofor   last modified: 03 2008 Deutsch
Dr.-Ing. Augustine Che Mofor, M. Sc.
(now with TESAT)		 Dr. Mofor

 

Area of research:
  Growth and Characterisation of ZnO layers and nanostructures for microelectronic, optoelectronic and magneto-electronic applications.
Undergraduate Thesis:
  Application of Reflectance Spectroscopy in Molecular Beam Epitaxy for in-situ Surface Characterisation.  University of Duisburg-Essen, January 2003
Masters Thesis:

Growth and Characterisation of III-V Device Layers on Silicon Substrates. University of Duisburg-Essen  January (2004)
Brief Resume:

After High School (GCE Advanced Level) in Cameroon, Che Mofor came to Germany in April 1997 and attended a graduate German course in Bochum. He thereafter studied from October 1998 to January 2004 in the Faculty of Electrical and Information Engineering at the University of Duisburg-Essen, where he graduated with a Master of Science, specialising in Technical Electronics. Since March 2004, he works as Research Assistant towards a PhD in the Institute of Semiconductor Technology.

Teaching:
Supervision/Co-supervision of Practicals and theses.

Publicationsl/Conference contributions:
1.

2. 

3.

  1. A C Mofor, A El-Shaer, M Suleiman, A Bakin and A Waag; A two-step obtainment of quantum confinement in ZnO nanorods , Nanotechnology, 17, 2006, pp. 4859-4862
  2. A. Che Mofor, A. Bakin, A. El-Shaer, M. Al-Suleiman, N. Boukos , A. Travlos, and A. Waag: VPT Growth of ZnO: From Nanostructures to Layers 4th International Workshop on ZnO and Related Materials, 3-6th October 2006, Gießen, Germany (2006), 
  3.   A.C. Mofor, A. El-Shaer, M. Suleiman, A. Bakin, A. Waag: Fabrication of ZnO Nanorod-based Single Quantum Well Structures, European Material Research Society Fall meeting, 4-8 September 2006, Warsaw Poland.
  4. L. Wischmeier, T. Voss, I. Rückmann, J. Gutowski, A. C. Mofor, A. Bakin, A. Waag; Kinetics of surface-excitonic emission in ZnO nanowires Phys. Rev. B, at press (2006)
  5. Werner Prost, Victor Khorenko, Augustine-Che Mofor , Stefan Neumann, Artur Poloczek, Andreas Matiss, Andrey Bakin, Andreas Schlachetzki, and Franz-Josef Tegude; High Performance III/V RTD and PIN Diode on a Silicon (001) substrate, Journal Applied Physics A: Materials Science and Processing, Springer (in press)
  6. B. Piechal, J. Yoo, A. El-Shaer, A. C. Mofor, G.-C. Yi, A. Bakin, A. Waag, F. Donatini, D. Le Si: Cathodoluminescence study of wide band gap ZnO nanorod heterostructures, European Material Research Society Fall meeting, 4-8 September 2006, Warsaw Poland.
  7. C. Bekeny, L. Wischmeier, B. Hilker, T. Voss, B. Postels, A. C. Mofor, M. Kreye, A. Bakin, A. Waag: Origin of the near band-edge photoluminescence in ZnO nanorods fabricated by equeous chemical growth and vapour phase epitaxy, 4th International Workshop on ZnO and Related Materials, Gießen (2006), accepted
  8. L. Wischmeier, T. Voss, I. Rückmann, J. Gutowski, A. C. Mofor, A. Bakin, A. Waag: Photoluminescence dynamics of surface-related emission in ZnO nanorods, 4th International Workshop on ZnO and Related Materials, 3-6th October 2006, Gießen, Germany (2006), 
  9. L. Wischmeier, T. Voss, I. Rückmann, J. Gutowski, A. C. Mofor, A. Bakin, A. Waag: Photoluminescence dynamics of surface-related emission in VPE grown ZnO nanowires, 28th Internation Conference on the Physics of Semiconductors (ICPS), Vienna (2006)
    to be published in AIP Conference Proceedings 
  10. A. C. Mofor, A. S. Bakin, B. Postels, M. Suleiman, A. Elshaer, A. Waag: Growth of ZnO Layers for Transparent and Flexible Electronics: EMRS 2006 Symposium R, Nice, France, 29th May to 2nd June 2006 Journal of Thin Solid Films, Elsevier (at press)
  11. A. C. Mofor, A. Bakin, U. Chejarla, E. Schlenker, A. El-Shaer, G. Wagner, N. Boukos, A. Travlos, and A. Waag: Fabrication of ZnO Nanorod-based p-n Heterojunction on SiC Substrate, EMRS 2006 Symposium K, Nice, France, 29th May to 2nd June 2006, Journal Superlattices and Microstructures, Elsevier (submitted)
  12. A. Bakin, A. Che Mofor, A. El-Shaer, and A. Waag: Vapour Phase Transport Growth of ZnO Layers and Nanostructures, Journal Superlattices and Microstructures, Elsevier (submitted)
  13. T. Voss, C. Bekeny, L. Wischmeier, H. Gafsi, S. Börner, W. Schade, A. C. Mofor, A. Bakin, A. Waag; Influence of exciton-phonon coupling on the energy position of the near band-edge photoluminescence of ZnO nanowires, Appl. Phys. Lett., at press (2006)
  14. A. El-Shaer, A. Bakin, M. Al-Suleiman, S. Ivanov, A. Che Mofor and A. Waag: Growth of wide band gap wurtzite ZnMgO epilayers on (0001) Al2O3 by radical-source molecular beam epitaxy, EMRS 2006 Symposium R, Nice, France, 29th May to 2nd June 2006, Journal Superlattices and Microstructures, Elsevier (submitted)
  15. A. El-Shaer, A. Bakin, M. Al-Suleiman, S. Ivanov, A. Che Mofor and A. Waag: Improvement of radical-source molecular beam epitaxial growth of ZnO on (0001) sapphire employing RHEED intensity oscillations, EMRS 2006 Symposium R, Nice, France, 29th May to 2nd June 2006, Paper submitted to Journal Superlattices and Microstructures, Elsevier)
  16. E. Schlenker, A. Bakin, B. Postels, A.C. Mofor, M. Kreye, C. Ronning, S. Sievers,  M. Albrecht, U. Siegner, R. Kling, A. Waag: Magnetic characterisation of ZnO doped with Vanadium, EMRS 2006 Symposium R, Nice, France, 29th May to 2nd June 2006, Journal Superlattices and Microstructures, Elsevier (submitted)
  17. A. C. Mofor, A. Bakin, A. El-Shaer, E. Schlenker, M. Suleiman, and A. Waag: Growth of ZnO Nanorods for Optoelectronic and Spintroic Applications, German Physics Society Conference, Dresden, March 2006.
  18. A. C. Mofor, A. Bakin, A. El-Shaer, B. Postels, D. Fuhrmann,   F.Bertram, A. Hangleiter, J. Christen, and A. Waag: Vapour Phase Transport Growth of ZnO for Nano- and Flexible Electronics, 20th Workshop of DGKK- (German Society of Crystal Growth) Group: Duisburg , 8-9. December 2005
  19. A.C. Mofor, A.S. Bakin, A. El-Shaer, D. Fuhrmann, F. Bertram, A. Waag: Vapour Phase Epitaxy Growth of ZnO Nanorods; Appl. Physics A: Materials Science and Processing, Springer (submitted)
  20. A. El-Shaer, A. Bakin, A. Che Mofor, M. Kreye, A. Waag, M. Heuken, J. Bläsing, A. Krost, J. Stoimenos: H2O2-Molecular Beam Epitaxy of high quality ZnO; Appl. Physics A: Materials Science and Processing, Springer (submitted)
  21.  A.C. Mofor, F. Reuß, A. El-Shaer, A. Bakin, H. Ahlers, U. Siegner, S. Sievers, M. Albrecht, W. Schoch, N. Izyumskaya, V. Avrutin, J. Stoimenos, A. Waag: Magnetism in Zn(TM)O layers and nanorods grown on Sapphire; Appl. Physics A: Materials Science and Processing, Springer (submitted)
  22. A.C. Mofor , A.S. Bakin, A. Elshaer, D. Fuhrmann, F. Bertram, A. Hangleiter, J. Christen, A. Waag: Catalyst-free vapor-phase transport growth of vertically aligned ZnO nanorods on 6H-SiC and (11-20) Al2O3; phys. stat. solidi, phys. stat. sol. (c) 3, No. 4, 1046–1050 (2006) 
  23. A. El Shaer, A. Bakin, A. Che Mofor, J. Bläsing, A. Krost, J. Stoimenos, B. Pécz, M. Kreye, M. Heuken, A. Waag: CBE Growth of High-Quality ZnO Epitaxial Layers; phys. stat. sol. (b) 243, No. 4, 768–772 (2006)
  24. A.C. Mofor, F. Reuss, A. El-Shaer, H. Ahlers, U. Siegner, A. Bakin, W. Limmer, J. Eisenmenger, Th. Mueller, P. Ziemann, A. Waag: A Study of ZnMnO as a Material for Magneto- and Spin-electronics; phys. stat. sol. (c) 3, No. 4, 1104–1108 (2006)
  25. A. Bakin, A. El-Shaer, A. Che Mofor, M. Kreye, A. Waag, F. Bertram, J. Christen, J. Stoimenos: MBE growth of ZnO layers on sapphire employing hydrogen peroxide as an oxidant; J. Crystal Growth 287, n. 1, 2006, pp. 7-11.
  26. A. El-Shaer, A. Che Mofor, A. Bakin, M. Kreye, A. Waag: High-Quality ZnO Layers Grown by MBE on Sapphire; J. Superlattices and Microstructures, Elsevier, 2005 (in press)
  27. A. Che Mofor, A. El-Shaer , A. Bakin, H.-H. Wehmann, A. Waag, H. Ahlers, U. Siegner, S. Sievers, M. Albrecht, W. Schoch, N. Izyumskaya, V. Avrutin, J. Stoimenos: Magnetic Property Investigation on ZnMnO; Elsevier - Superlattices and Microstructures 39, 381-386 (2006)
  28. A. Che Mofor, A. El-Shaer, A. Bakin, A. Waag, H. Ahlers, U. Siegner, S. Sievers, M. Albrecht, W. Schoch, N. Izyumskaya, V. Avrutin, S. Sorokin, S. Ivanov, J. Stoimenos: Magnetic Property investigations on Mn-doped ZnO layers on sapphire; Appl. Phys. Lett. 87, 062501 (2005)
  29. A. Bakin, A. El-Shaer, A. Che Mofor, M. Kreye, A. Waag, F. Bertram, J. Christen, J. Stoimenos: Recent advancements in ZnO layers growth on sapphire; ICMAT 2005, Symposium N, ZnO and Related Materials, Singapore , July 3 - 9, 2005
  30. V. Avrutin, Ü. Özgür, H. Lee, H. Morkoç, A. Che Mofor, A. El-Shaer , A. Bakin, A. Waag, N. Izyumskaya, W. Schoch, F. Reuss, V. Beshenkov, A.N. Pustovit, A.F. Vyatkin: Optical and Electrical Properties of ZnMnO Layers Grown by Peroxide MBE; Elsevier - Superlattices and Microstructures 39, 291-298 (2006)
  31. A. Che Mofor, A. El-Shaer , A. Bakin, H.-H. Wehmann, A. Waag, H. Ahlers, U. Siegner, S. Sievers, M. Albrecht, W. Schoch, N. Izyumskaya, V. Avrutin, J. Stoimenos: Magnetic Property Investigation on ZnMnO; E-MRS 2005, Spring Meeting, Symposium G, ZnO and Related Materials, Strasbourg, May 31-June 3, 2005
  32.   A. El-Shaer, A. Che Mofor, A. Bakin, M. Kreye, A. Waag: High-Quality ZnO Layers Grown by MBE on Sapphire; Elsevier - Superlattices and Microstructures 38, 265-271 (2005)
  33. W. Prost, V. Khorenko, P. Kelly, A.-C. Mofor, S. Neumann, A. Poloczek, A. Brennemann, A. Matiss, A. Bakin, A. Stöhr, D. Jäger, M. McGinnity, A. Schlachetzki, F.-J. Tegude: High Performance III/V RTD and PIN Diode on a Silicon substrate; accepted to the 6th Topical Workshop on Heterostructure Microelectronics TWHM, Awaji Island, Hyogo, Japan 2005
  34. W. Prost, V. Khorenko, A.-C. Mofor, A. Bakin, E. Khorenko, S. Ehrich, A. Schlachetzki, F.-J. Tegude: High-Speed InP-based Resonant Tunnelling Diode on Silicon Substrate; accepted to the 35th European Solid-State Device Research Conference ESSDERC, Grenoble, France, 12 - 16 Sept 2005
  35. H.-H. Wehmann, R. Kling, F. Reuss, C. Kirchner, A. Che Mofor, A. Bakin, M. Kreye, A. Waag, M. Albrecht, S. Sievers, H. Ahlers, U. Siegner: ZnO-based Nanopillars for Optoelectronics and Magnetoelectronics; 11th European Workshop on Metal-Organic Vapour Phase Epitaxy and Related Growth Techniques (EW-MOVPE XI), poster E02, June 5 - 8, 2005, Lausanne, Switzerland
  36. W. Prost, P. Kelly, A. Guttzeit, V. Khorenko, E. Khorenko, A. Matiss, J. Driesen, A.Mofor, A. Bakin, S. Neumann, M. Mc Ginnity, A. Schlachetzki, F.-J. Tegude: Design and Modelling of a III/V MOBILE-Gate with Optical Input on a Silicon substrate; Proc. of 17th Indium Phosphide and Related Materials Conference (IPRM, Glasgow), U.K. 8.-12. May 2005
  37. M. Kreye; A. Che Mofor; R. Kling; B. Postels; A. Bakin; H.-H. Wehmann; A. Waag: ZnO Nanostructures: Growth, Properties and Applications (Vortrag), 1. DFG Schwerpunkttreffen Nanodrähte und Nanoröhren (SPP 1165), Fulda, (2005).
  38. H.-H. Wehmann; M. Kreye; A. Che Mofor, A. Bakin; A. Waag; R. Kling; M. Albrecht; S. Sievers; H. Ahlers; U. Siegner: MOVPE Grown ZnO Nanorods for Optoelectronics and Magnetoelectronics (Poster), 1. DFG Schwerpunkttreffen Nanodrähte und Nanoröhren (SPP 1165), Fulda, (2005).
  39. M. Kreye; R. Kling; F. Reuss; C. Kirchner; A. Che Mofor; H.-H. Wehmann; A. Bakin; A. Waag: ZnO-based nanopillars for optoelectronics and magnetoelectronics; 342. WE-Heraeus-Seminar: Science and Technology of Inorganic Nanowires, Physikzentrum Bad Honnef, (2005).
  40. A. El-Shaer, A. Che Mofor, A. Bakin, N. Izyumskaya, V. Avrutin, W. Schoch, F. Reuß, A. Waag, H. Ahlers, U. Siegner. Novel Oxidant for ZnO Molecular Beam Epitaxy , Soxess Workshop on ZnO and Related Materials, October 27 - 30, Caernarfon, United Kingdom, 2004
  41. A. Bakin, A. El-Shaer, N. Izyumskaya, V. Avrutin, W. Schoch, A. Che Mofor, F. Reuß, A. Waag: New approach to molecular beam epitaxy of high-quality ZnO , The 3rd International Workshop on ZnO and Related Materials, October 5 - 8, Sendai , Japan , 2004
  42. H.-H. Wehmann, A. Guttzeit, C. Achimescu, A. Bakin, A. Mofor, V. Khorenko, S. Neumann, W. Prost, A. Waag, A. Schlachetzki, F.-J. Tegude: III/V-on-Silicon - a possibility for the post CMOS- time?; 9th Augustusburg Conf. of Advanced Science (ACAS 2004) - The Silicon age: Silicon for microelectronics, Photovoltaic and Photonics, 23. - 25. Sept. 2004, Schloss Augustusburg (Sachsen)
  43. V. Khorenko, A.C. Mofor, A. Bakin, S. Neumann, A. Guttzeit, H.-H. Wehmann, W. Prost, A. Schlachetzki, F.-J. Tegude: Buffer optimization for InP-on-Si (001) quasi-substrates; 16th International Conference on Indium Phosphide and Related Materials, Kagoshima, Japan, May 31 - June 4, 2004
  44. A. El-Shaer, A. Che Mofor, A. Bakin, W. Schoch, F. Reuß, A. Waag: MBE growth of ZnO using H2O2 as oxidant; German MBE Workshop 2004 at Physikalisch-Technische Bundesanstalt Braunschweig, 11 - 12 October 2004
  45. A. Bakin, A. El-Shaer, A. Che Mofor, W. Schoch, A. Waag: Growth of High quality ZnO with H2O2 as oxidant; 3rd International Workshop on ZnO and Related Materials Sendai, Japan, October 6-8, 2004
  46. V. Khorenko, A.C. Mofor, A. Bakin, S. Neumann, A. Guttzeit, H.-H. Wehmann, W. Prost, A. Schlachetzki, F.-J. Tegude: Buffer optimization for quality improvement of the InP-on-Si (100) quasi-substrates. 2004 International Conference on Indium Phosphide and Related Materials (16 th) May 31 - June 4, 2004, Kagoshima , Japan . Conference Proceedings ISBN: 0-7803-8595-0 pages 118-121
  47. A. C. Mofor, V. Khorenko,S. Neumann, W. Prost. F.-J. Tegude, A. Bakin, A. Guttzeit, H.-H. Wehmann, A. Schlachetzki: Superlattice design for the reduction of crystal defects in InP-on Si quasi-substrates; 18. Workshop of DGKK- (German Society of Crystal Growth) Group: "Epitaxy of III/V Semiconductors", Bremen , 11-12. 12. 2003

Presentations/Talks:
  1. Growth and Characterisation of III-V device layers on Silicon Substrates (PhD seminar, IHT, May 2004)
  2. Magnetic Property Measurements on Semiconductors (PhD seminar, IHT, December 2004)
  3. Vapour Transport Approach for ZnO Growth (PhD seminar May 2005)
  4. Growh and Characterisation of ZnO Nanorods (PhD seminar, IHT,  Juli 2006