Osman Bakr, FRSC, FIMMM

Physics and chemistry of nanomaterials; including the synthesis, size-separation, and assembly of organic and organic-inorganic hybrid nanomaterials of novel optical, electronic and magnetic properties that will become the future building-blocks for solar cells, batteries, photonic and optoelectronic devices.

Low Trap-State Density and Long Carrier Diffusion in Organolead Trihalide Perovskite Single Crystals

D. Shi, V. Adinolfi, R. Comin, M. Yuan, E. Alarousu, A. Buin, Y. Chen, S. Hoogland, A. Rothenberger, K. Katsiev, Y. Losovyj, X. Zhang, P. A. Dowben, O. F. Mohammed, E. H. Sargent, O. M. Bakr

Science, 2015, 347, (6221), pp. 519-522. (2015)

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Managing grains and interfaces via ligand anchoring enables 22.3%-efficiency inverted perovskite solar cellsNature

X. Zheng , Y. Hou , C. Bao, J. Yin, F.Yuan, Z. Huang , K. Song, J. Liu, J. Troughton, N. Gasparini, C. Zhou, Y. Lin, D-J. Xue, B. Chen, A. K. Johnston, N. Wei, M. N. Hedhili, M. Wei, A. Y. Alsalloum, P. Maity, B. Turedi, C. Yang, D. Baran , T. D. Anthopoulos, Y. Han, Z-H Lu, O. F. Mohammed, F. Gao, E. H. Sargent, O. M. Bakr 

Energy, 2020, 5(2), 131-140.(2020)

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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. Dursun, L. Wang, Y. He, G. Maculan, A. Goriely, T. Wu, O. F. Mohammed, O. M. Bakr  

Nature Communications, 2015, 6:7586(2015)

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Single-Crystal MAPbI₃ Perovskite Solar Cells Exceeding 21% Power Conversion Efficiency

Z. Chen; B. Turedi, C. Yang, X. Zheng, I. Gereige, A. Alsaggaf, O. F. Mohammed, O. M. Bakr 

ACS Energy Letters, 2019, 4,1258-1259(2019)

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Formamidinium lead halide perovskite crystals with unprecedented long carrier dynamics and diffusion length

A. A. Zhumekenov, M. I. Saidaminov, M. A. Haque, E. Alarousu, S. P. Sarmah, B. Murali, I. Dursun, X-H Miao, A. L. Abdelhady, T. Wu,  O. F. Mohammed, O. M. Bakr 

ACS Energy Letters, 2016, 1, (1), pp. 32. (2016)

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Bidentate Ligand-Passivated CsPbI3 Perovskite Nanocrystals for Stable Near-Unity Photoluminescence Quantum Yield and Efficient Red Light-Emitting Diodes

J. Pan, Y. Shang, J. Yin, M. De Bastiani, W. Peng, I. Dursun, L. Sinatra, A. M. El-Zohry, M. N. Hedhili, A.-H Emwas, O. F. Mohammed, Z. Ning, O. M. Bakr

Journal of the American Chemical Society, 2018, 140, (2), pp. 562(2018)

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Templated atom-precise galvanic synthesis and structure elucidation of a [Ag₂₄Au(SR)₁₈]^- nanocluster

M. S. Bootharaju, C. P. Joshi, M. R. Parida, O. F. Mohammed,O. M. Bakr

Angewandte Chemie - International Edition, 2016, 55, (3), pp. 922. (2016)

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[Ag₂₅(SR)₁₈]⁻: The “Golden” Silver Nanoparticle

C.P. Joshi, M.S. Bootharaju, M.J.Alhilaly, O. M. Bakr

Journal of the American Chemical Society, 2015, 137 (36), pp 11578–11581. (2015)

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Ag₂₉(BDT)₁₂(TPP)₄: A Tetravalent Nanocluster

L. G. AbdulHalim, M. S. Bootharaju, Q. Tang, S. D. Gobbo, R. G. AbdulHalim, M. Eddaoudi, D. E. Jiang, O. M. Bakr

Journal of the American Chemical Society, 2015, 137 (37), 11970-11975. (2015)

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Assembly of Atomically Precise Silver Nanoclusters into Nanocluster-based Frameworks

M. J. Alhilaly, R-W Huang, R. Naphade, B. Alamer, M. N. Hedhili, A-H Emwas, P. Maity, J. Yin, A. Shkurenko, O. F. Mohammed, M. Eddaoudi, O. M. Bakr 

Journal of the American Chemical Society, 2019, 2019, 141, (24), pp. 9585.(2019)

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Quantum Dots Supply Bulk- and Surface-Passivation Agents for Efficient and Stable Perovskite Solar Cells

X. P. Zheng, J. Troughton, N. Gasparini, Y. B. Lin, M. Y. Wei, Y. Hou, J. K. Liu, K. P. Song, Z. L. Chen, C. Yang, B. Turedi, A. Y. Alsalloum, J. Pan, J. Chen, A. A. Zhumekenov, T. D. Anthopoulous, Y. Han, D. Baran, O. F. Mohammed, E. H. Sargent, O. M. Bakr

Joule, 2019, 3, (8), pp. 1963.(2019)

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Atomic-Level Doping of Metal Clusters

A. Ghosh, O. F. Mohammed, O. M. Bakr

Accounts of Chemical Research, 2018, 51, (12), pp. 3094.

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Low-Temperature Crystallization Enables 21.9% Efficient Single-Crystal MAPbI3 Inverted Perovskite Solar Cells

A. Y. Alsalloum, B. Turedi, X. Zheng, C. Yang, X. Zheng, S. Mitra, A. Zhumekenov,K. Lee, P. Maity, I. Gereige, A. Alsaggaf, I. Roqan, O. F. MohammedO. M. Bakr

ACS Energy Letters, 2020, 5, 2, 657-662.

Reed more>>>Long-lived charge-separated states in ligand-stabilized silver clusters

M. Pelton, Y. Tang, O. M. Bakr and F. Stellacci

J. Am. Chem. Soc. 2012, 134, 29, 11856–11859.(2012)

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Ag₄₄(SR)30^4-: a silver–thiolate superatom complex
K. M. Harkness, Y. Tang, A. Dass, J. Pan, N. Kothalawala, V. J. Reddy, D. E. Cliffel, B. Demeler, F. Stellacci, O. M. Bakr, J. A. McLean

Nanoscale, 2012, 4, 4269.(2012)

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Colloidal quantum dot photovoltaics: the effect of polydispersity

D. Zhitomirsky, I. J. Kramer, A. J. Labelle, A. Fischer, R. Debnath, J. Pan, O.M. Bakr, E. H. Sargent

Nano letters, Vol.: 12, Iss.: 2 P: 1007-12, (2012)

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Solution-processed colloidal quantum dot photovoltaics: A perspective

D. Ratan, O. M. Bakr and E. H. Sargent

Energy & Environmental Science,(2011)

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Determination of nanoparticle size distribution together with density or molecular weight by 2D analytical ultracentrifugation

R. P. Carney, J. Y. Kim, R. Jin, H. Mehenni, F. Stellacci O. M. and Bakr

Nature Communications, 2 (1), (2011)

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Synthesis of novel bis (perfluorophenyl azides) coupling agents: Evaluation of their performance by crosslinking of poly (ethylene oxide)

H. Mehenni, and O.M. Bakr

Reactive and Functional Polymers, 71, (11), pp. 1110-1117, (2011)

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Optical limiting with complex plasmonic nanoparticles

V. Liberman, M. Rothschild, O. M. Bakr and F. Stellacci

Journal of Optics, 12, 065001, (2010)

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A Study of the Surface Plasmon Resonance of Silver Nanoparticles by the Discrete Dipole Approximation Method: Effect of Shape, Size, Structure, and Assembly

V. Amendola, O. M. Bakr and F. Stellacci

Plasmonics, 5 (1), 85-97, (2010)

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Silver nanoparticles with broad multi-band Linear optical Absorption

O. M. Bakr, V. Amendola, C. M. Aikens, W. Wenseleers, R. Li, L. Dal Negro, G. C. Schatz and F. Stellacci

Angewandte Chemie International Edition, 48, 5921, (2009)

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Chains of superparamagnetic nanoparticles

K. Nakata, Y. Hu, O. Uzun, O. M. Bakr and F. Stellacci

Advanced Materials, 20 (22), 4294-4299, (2008)

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Reversible aggregation of porphyrins in the solid state

B. Long, O. M. Bakr and F. Stellacci

Journal of Experimental Nanoscience, 3 (1), 53-60, (2008)

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High-yield synthesis of multi-branched urchin-like gold nanoparticles

O. M. Bakr, B. H. Wunsch and F. Stellacci

Chemistry of Materials 18, 3297-3301, (2006)

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• Ph.D., Applied Physics, Harvard University, USA, 2009
• M.Sc., Applied Physics, Harvard University, USA, 2005
• B.Sc., Materials Science and Engineering, Massachusetts Institute of Technology (MIT), USA, 2003

• 2019 - present: Professor, Material Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
• 2015 - 2019: Associate Professor, Material Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia.
• 2010–2015: Assistant Professor, Material Science and Engineering, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia.
• 2009–2010: Postdoctoral Fellow, Laboratory for Nanoscale Optics, Harvard University, USA
• 2004–2009: Research Assistant, Supramolecular Nanomaterials Group, MIT, USA
• 2000–2003: Research Assistant, Advanced Inorganic Materials Group, MIT, USA

2019 Designated as a Highly Cited Researcher by the Web of Science Group 

2018   Named one of the ten leading university researchers world-wide in the area of  “perovskite solar cells” by The Times Higher Education

2018  Custodian of the King Prize for Honoring Inventors and the Gifted.

2017  Selected as a member of the Editorial Advisory Boards of Chemistry of Materials

2016  Selected as a Young Scientist by the World Economic Forum 

2016  Selected as an Emerging Investigator by the Journal of Materials Chemistry A 

2016  Selected as a member of the Editorial Advisory Boards of ACS Energy Letters

2014  Elected as member of Arab-German Young Academy.

2008  King Abdullah Scholar Award, KAUST, Saudi Arabia.

Physical Science and Engineering Division

Material Science and Engineering Program

Chemical Science Program

Electrical Engineering Program

KAUST Catalysis Center