Selected Publications

Manipulation of Hot Carrier Cooling Dynamics in Two-Dimensional Dion-Jacobson Hybrid Perovskites via Rashba Band Splitting

Year: 2021 DOI:10.1038/s41467-021-24258-7 / Nature Communications, 12, 3995 (2021)

Authors: J. Yin, R. Naphade, P. Maity, L. Gutierrez-Arzaluz, D. Almalawi, I. S. Roqan, J-L. Bredas, O. M. Bakr, O. F. Mohammed

Two-dimensional hybrid perovskites

Cascade Electron Transfer Induces Slow Hot Carrier Relaxation in CsPbBr3 Asymmetric Quantum Wells

Year: 2021 DOI:10.1021/acsenergylett.1c01142 / ACS Energy Letters, 6,2602-2609 (2021)

Authors: P. Maity, N. A. Merdad, J. Yin, K. J. Lee, L. Sinatra, O. M. Bakr, O. F. Mohammed

Perovskites
Nanocrystals

Successes and Challenges of Core/Shell Lead Halide Perovskite Nanocrystals

Year: 2021 DOI:10.1021/acsenergylett.1c00076 / ACS Energy Letters, 6, 1340-1357 (2021)

Authors: G. H.Ahmed, J. Yin, O. M. Bakr, O. F. Mohammed

Perovskites
Nanocrystals

Theory-Guided Synthesis of Highly Luminescent Colloidal Cesium Tin Halide Perovskite Nanocrystals

Year: 2021 DOI:10.1021/jacs.1c01049 / Journal of the American Chemical Society, 143, 5470-5480

Authors: Q. Liu, J. Yin, B. B. Zhang, J-K. Chen, Y. Zhou, L.M. Zhang, L. M. Wang, Q. Zhao, Z. Hou, J. Shu, B. Song, N. Shirahata, O. M. Bakr, O. F. Mohammed, H-T. Sun

Perovskites
Nanocrystals

Modulation of Broadband Emissions in Two-Dimensional ⟨100⟩-Oriented Ruddlesden–Popper Hybrid Perovskites

Year: 2020 DOI:10.1021/acsenergylett.0c01047 / ACS Energy Letters, 5, 2149–2155 (2020)

Authors: Jun Yin, Rounak Naphade, Luis Gutiérrez-Arzaluz, Jean-Luc Brédas, Osman M. Bakr, Omar F. Mohammed

Two-dimensional hybrid perovskites

Access to Highly Efficient Energy Transfer in Metal–Organic Frameworks via Mixed Linkers Approach

Year: 2020 DOI:10.1021/jacs.0c02007 /Journal of the American Chemical Society, 142, 8580–8584 (2020)

Authors: Jiangtao Jia, Luis Gutiérrez-Arzaluz, Osama Shekhah, Norah Alsadun, Justyna Czaban-Jóźwiak, Sheng Zhou, Osman M. Bakr, Omar F. Mohammed, Mohamed Eddaoudi

photosynthesis
metal-organic- frameworks

Boosting Self-Trapped Emissions in Zero-Dimensional Perovskite Heterostructures

Year: 2020 DOI:10.1021/acs.chemmater.0c00658 / Chemistry of Materials, 32, 5036–5043 (2020)

Authors: Jun Yin, Jean-Luc Brédas, Osman M. Bakr, Omar F. Mohammed

Hybrid perovskites
Crystal
zero-dimensional

Tuning Hot Carrier Cooling Dynamics by Dielectric Confinement in Two-Dimensional Hybrid Perovskite Crystals

Year: 2019 DOI:10.1021/acsnano.9b04085 / ACS Nano, 13, 12621–12629 (2019)

Authors: Jun Yin, Partha Maity, Rounak Naphade, Bin Cheng, Jr-Hau He, Osman M. Bakr, Jean-Luc Brédas, Omar F. Mohammed

2D Hybrid Perovskites
Dielectric confinement
Hot carrier cooling
Nonadiabatic molecular dynamics
Electron−phonon coupling

MAPbI3 Single Crystals Free from Hole-Trapping Centers for Enhanced Photodetectivity

Year: 2019 DOI:10.1021/acsenergylett.9b01956 / ACS Energy Letters, 4, 2579–2584 (2019)

Authors: Chen Yang, Jehad K. El-Demellawi, Dhinesh Babu Velusamy, Abdul-Hamid M. Emwas, Ahmed M. El-Zohry, Issam Gereige, Ahmed AlSaggaf, Osman M. Bakr, Husam N. Alshareef, Omar F. Mohammed

Enhanced Photodetectivity

Extraordinary Carrier Diffusion on CdTe Surfaces Uncovered by 4D Electron Microscopy

Year: 2019 DOI:10.1016/j.chempr.2018.12.020 / Chem, 5, 497-499 (2019)

Authors: Ahmed M.El-Zohry, Basamat S.Shaheen, Victor M.Burlakov, Jun Yin, Mohamed N.Hedhili, Semen Shikin, Boon Ooi, Osman M.Bakr, Omar F.Mohammed

Ultrafast electron imaging
Crystal orientation
Surface dynamics
Renewable energy materials
Oxidation layers
Neat-surfaces
DFT calculations
Real-space imaging
Surface termination

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

Year: 2019 DOI:10.1021/acsenergylett.9b00847 / ACS Energy Letters, 4, 1258–1259 (2019)

Authors: Zhaolai Chen, Bekir Turedi, Abdullah Y. Alsalloum, Chen Yang, Xiaopeng Zheng, Issam Gereige, Ahmed AlSaggaf, Omar F. Mohammed, Osman M. Bakr

Single-Crystal MAPbI3 Perovskite Solar Cells

Metal Halide Perovskite and Phosphorus Doped g-C3N4 Bulk Heterojunctions for Air-Stable Photodetectors

Year: 2019 DOI:10.1021/acsenergylett.9b01339 / ACS Nano, 13, 2520–2525 (2019)

Authors: Zhixiong Liu, Yunpei Zhu, Jehad K. El-Demellawi, Dhinesh Babu Velusamy, Ahmed M. El-Zohry, Osman M. Bakr, Omar F. Mohammed, Husam N. Alshareef

Metal Halide Perovskite

Visualization of Charge Carrier Trapping in Silicon at the Atomic Surface Level Using Four-Dimensional Electron Imaging

Year: 2019 DOI:10.1021/acs.jpclett.9b00598 /Journal of Physical Chemistry Letters, 10, 1960–1966 (2019)

Authors: Basamat S. Shaheen, Ahmed M. El-Zohry, Jun Yin, Michele De Bastiani, Stefaan De Wolf, Osman M. Bakr, Omar F. Mohammed

Charge carrier
Four-dimensional electron imaging

Unlocking the Effect of Trivalent Metal Doping in All-Inorganic CsPbBr3 Perovskite

Year: 2019 DOI:10.1021/acsenergylett.9b00209 / ACS Energy Letters, 4, 789–795 (2019)

Authors: Jun Yin, Ghada H. Ahmed, Osman M. Bakr, Jean-Luc Brédas, Omar F. Mohammed

Trivalent Metal
Metal-ion doping

Why are Hot Holes Easier to Extract than Hot Electrons from Methylammonium Lead Iodide Perovskite?

Year: 2019 DOI:10.1002/aenm.201900084 / Advanced Energy Materials, 9, 1900084 (2019)

Authors: Ibrahim Dursun, Partha Maity, Jun Yin, Bekir Turedi, Ayan A. Zhumekenov, Kwang Jae Lee, Omar F. Mohammed, Osman M. Bakr

Carrier extraction
Carrier temperature
Density functional theory
Halide perovskites
Hot carriers

Compositional, Processing, and Interfacial Engineering of Nanocrystal- and Quantum-Dot-Based Perovskite Solar Cells

Year: 2019 DOI:10.1021/acs.chemmater.9b01268 / Chemistry of Materials, 31, 6387–6411 (2019)

Authors: Ala’a O. El-Ballouli, Osman M. Bakr, Omar F. Mohammed

Perovskite solar cells

Unprecedented Ultralow Detection Limit of Amines using a Thiadiazole-Functionalized Zr(IV)-Based Metal–Organic Framework

Year: 2019 DOI:10.1021/jacs.9b01839 /Journal of the American Chemical Society, 141, 7245–7249 (2019)

Authors: Arijit Mallick, Ahmed M. El-Zohry, Osama Shekhah, Jun Yin, Jiangtao Jia, Himanshu Aggarwal, Abdul-Hamid Emwas, Omar F. Mohammed, Mohamed Eddaoudi

Amines
Density functional theory

Layer-Dependent Rashba Band Splitting in 2D Hybrid Perovskites

Year: 2018 DOI:10.1021/acs.chemmater.8b03436 / Chemisty of Materials, 30, 8538–8545 (2018)

Authors: Jun Yin, Partha Maity, Liangjin Xu, Ahmed M. El-Zohry, Hong Li, Osman M. Bakr, Jean-Luc Brédas, Omar F. Mohammed

Layer-Dependent Rashba Band
2D Hybrid Perovskites

Giant Photoluminescence Enhancement in CsPbCl3 Perovskite Nanocrystals by Simultaneous Dual-Surface Passivation

Year: 2018 DOI:10.1021/acsenergylett.8b01441 / ACS Energy Letters, 3, 2301–2307 (2018)

Authors: Ghada H. Ahmed, Jehad K. El-Demellawi, Jun Yin, Jun Pan, Dhinesh Babu Velusamy, Mohamed Nejib Hedhili, Erkki Alarousu, Osman M. Bakr, Husam N. Alshareef, Omar F. Mohammed

CsPbCl3 Perovskite Nanocrystals
Simultaneous Dual-Surface Passivation

Imaging Localized Energy States in Silicon-doped InGaN Nanowires Using 4D Electron Microscopy

Year: 2018 DOI:10.1021/acsenergylett.7b01330 / ACS Energy Letters, 3, 476–481 (2018)

Authors: R. Bose, A. Adhikari, V.M. Burlakov, G. Liu, M.A. Haque, D. Priante, M.N. Hedhili, N. Wehbe, C. Zhao, H. Yang, T.K. Ng, A. Goriely, O.M. Bakr, T. Wu, B.S. Ooi, O.F. Mohammed

Ultrafast electron microscopy
Nanowires

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