Research Interests

  • ​The development of time-resolved laser spectroscopy and four-dimentional ultrafast electron microscopy as unique tools for materials, chemical and physical sciences applications
  • Photoinduced bimolecular electron transfer and the subsequent charge separation dynamics
  • Nanoscale materials dynamics e.g., nanotubes, quantum dots and nanoparticles
  • Synthesis and characterization of chemical systems that are ideal for ultrafast chemistry
  • Ultrafast reaction dynamics of photoswitchable materials
  • Electronic and vibarional spectroscopy
  • Femtosecond and picosecond dynamics of the most elementary chemical and physical processes

Selected Publications

  • Overcoming the cut-off charge transfer bandgaps at the PbS quantum dots interfaces
    A. O. El-Ballouli, E. Alarousu, A. R. Kirmani, A. Amassian, O. M. Bakr, O. F. Mohammed
    Advanced Functional Materials, 25, 7435-7441 (2015). Chosen for the back cover o..., (2015)
  • Real-space imaging of carrier dynamics of materials surfaces by second-generation four-dimensional scanning ultrafa...
    J. Sun, V. A. Melnikov, J. I. Khan, O. F. Mohammed
    Journal of Physical Chemistry Letters, 6, 3884-3890 , ((2015))
  • Ultrafast static and diffusion-controlled electron transfer at Ag29 nanocluster/molecular acceptor interfaces
    S. Aly, L. G. AbdulHalim, T. Besong, G. Soldan, Osman M. Bakr, O. F. Mohammed
    Nanoscale, Article ASAP. Chosen for the front cover of Nanoscale., (2015)
  • Air-stable surface-passivated perovskite quantum dots for ultra-robust, single- and two-photon-induced amplified sp...
    J. Pan, S. P. Sarmah, B. Murali, I. Dursun, W. Peng, M. R. Parida, J. Liu, L. Sinatra, N. ...
    Journal of Physical Chemistry Letters, 6, 5027-5033, (2015)
  • The impact of the structural alignment of the electron transporting layer on the performance of the inverted bulk h...
    M. Banavoth, A. El Labban, J. Eid, D. Shi, E. Alarousu, Q. Zhang, X. Zhang, O. M. Bakr, O....
    Small, 11, 52725279, (2015)
  • High-quality bulk hybrid perovskite single crystals within minutes by inverse temperature crystallization
    M. I. Saidaminov, A. L. Abdelhady, M. Banavoth, E. Alarousu, V. M. Burlakov, W. Peng, I. D...
    Nature Communications, 6, 7586, (2015)
  • Quantum confinement-tunable intersystem crossing and triplet state lifetime of cationic Porphyrin-CdTe quantum dot ...
    G. H. Ahmed, S.M. Aly, A. Usman, M. S. Eita, V. A. Melnikov, O. F. Mohammed
    Chemical Communications, 51, 8010-8013 (2015). Chosen for the front cover of Che..., (2015)
  • Molecular-structure control of ultrafast electron injection at cationic Porphyrin-CdTe quantum dot interfaces
    S. M. Aly, G. H. Ahmed, B. S. Shaheen, J. Sun, O. F. Mohammed
    Journal of Physical Chemistry Letters, 6 (5), 791795, (2015)
  • Ambient layer-by-layer ZnO assembly for highly efficient polymer bulk heterojunction solar cells
    M. Eita, A. El Labban, F. Cruciani, A. Usman, P. M. Beaujuge, O. F. Mohammed
    Advanced Functional Materials, 25, 15581564, (2015)
  • Photoinduced triplet-state electron transfer of platinum porphyrin: A one-step direct method for sensing iodide to ...
    D. Masih, S. M. Aly, E. Alarousu, O. F. Mohammed
    Journal of Materials Chemistry A, 3 (13), 6733-6738 (2015). Chosen for the front..., (2015)

Education Profile

  • Ph.D., Physical Chemistry, Humboldt University of Berlin, Germany, 2006                       
  • M.Sc., Chemistry, Assiut University, Egypt, 1999
  • B.Sc., Chemistry, Assiut University, Egypt, 1995

Professional Profile

  • 2012–present: Assistant Professor, Chemical Sciences, KAUST, Saudi Arabia2008–2012: Senior Research Associate, California Institute of Technology, USA
  • 2007–2008: Postdoctoral Associate, RIKEN (Institute of Chemical and Physical Research), Japan
  • 2006–2007: Postdoctoral Associate, University of Geneva, Switzerland
  • 2002-2006: Graduate Studies in Chemistry, MBI, Berlin, Germany

Scientific and Professional Memberships

  • ​Member of American Chemical Society (ACS)


  • ​Long term fellowship, Max-Born Institute, Berlin, Germany
  • Post-doctoral Fellowship (JSPS fellowship) & Special post-doctoral researcher (RIKEN fellowship), RIKEN, Japan
  • Distinguished scholar award from Arab Fund for Economic and Social Development, Kuwait
  • The State Prize in Basic Sciences, Egypt

KAUST Affiliations

  • ​KAUST Solar Center (KSC)
  • Division of Physical Sciences and Engineering (PSE)