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