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Total result(s) found: 21
  • MXenes for Plasmonic Photodetection
    Dhinesh Babu Velusamy, Jehad K. El‐Demellawi, Ahmed M. El‐Zohry, Andrea Giugni, Sergei Lopatin, Mohamed N. Hedhili, Ahmed E. Mansour, Enzo Di Fabrizio, Omar F. Mohammed, Husam N. Alshareef
    Adv.Mater.2019, 1807658
Keywords:
flexible photodetectors, low‐frequency Raman spectroscopy, molybdenum carbide, MXenes, surface plasmons
  • Defect-Triggered Phase Transition in Cesium Lead Halide Perovskite Nanocrystals
    Ju-Ping Ma, Jun Yin, Ya-Meng Chen, Qing Zhao, Yang Zhou, Hong Li, Yoshihiro Kuroiwa, Chikako Moriyoshi, Zhi-Yong Li, Osman M. Bakr, Omar F. Mohammed, Hong-Tao Sun
    ACS Materials Lett. 2019, 1, 185−191
Keywords:
NCs, CsPbCl3 NCs
  • Emergence of multiple fluorophores in individual cesium lead bromide nanocrystals
    Yuhai Zhang, Tianle Guo, Haoze Yang, Riya Bose, Lingmei Liu, Jun Yin, Yu Han, Osman M. Bakr, Omar F. Mohammed, Anton V. Malko 
    Nature Communicationsvolume 10, Article number: 2930 (2019)
Keywords:
multiple fluorophores
  • Controllable Charge-Transfer Mechanism at Push–Pull Porphyrin/Nanocarbon Interfaces
    Pınar Arpaçay, Partha Maity, Ahmed M. El-Zohry, Alina Meindl, Sevilay Akca, Shane Plunkett, Mathias O. Senge, Werner J. Blau, Omar F. Mohammed
    J. Phys. Chem. C
Keywords:
Push–pull porphyrins, Push–Pull Porphyrin/Nanocarbon Interfaces
  • Quantum Dots Supply Bulk- and Surface-Passivation Agents for Efficient and Stable Perovskite Solar Cells
    Xiaopeng Zheng, Joel Troughton, Nicola Gasparini, Yuanbao Lin, Mingyang Wei, Yi Hou, Jiakai Liu, Kepeng Song, Zhaolai Chen, Chen Yang, Bekir Turedi, Abdullah Y. Alsalloum, Jun Pan, Jie Chen, Ayan A. Zhumekenov, Thomas D.Anthopoulos, Yu Han, Derya Baran, Omar F. Mohammed, Edward H. Sargent, Osman M.Bakr
    Zheng et al., Joule3,1–14
Keywords:
quantum dots, nanocrystals, doping, surface modification, perovskite solar cells, stability, self-assembled monolayer
  • Assembly of Atomically Precise Silver Nanoclusters into Nanocluster-based Frameworks
    Mohammad J. Alhilaly, Ren-Wu Huang, Rounak Naphade, Badriah Alamer, Mohamed Nejib Hedhili, Abdul-Hamid Emwas, Partha Maity, Jun Yin, Aleksander Shkurenko, Omar F. Mohammed, Mohamed Eddaoudi, Osman M. Bakr
    J. Am. Chem. Soc.
Keywords:
Nanocluster-based Frameworks
  • Tuning Solute‐Redistribution Dynamics for Scalable Fabrication of Colloidal Quantum‐Dot Optoelectronics
    Min‐Jae Choi, YongJoo Kim, Hunhee Lim, Erkki Alarousu, Aniruddha Adhikari, Basamat S. Shaheen, Yong Ho Kim, Omar F. Mohammed, Edward. H. Sargent, Jin Young Kim, Yeon Sik Jung
    Adv.Mater.2019, 1805886
Keywords:
colloidal quantums dot, large‐area solar cells, solute redistribution
  • Why are Hot Holes Easier to Extract than Hot Electrons from Methylammonium Lead Iodide Perovskite?
    Ibrahim Dursun, Partha Maity, Jun Yin, Bekir Turedi, Ayan A. Zhumekenov, Kwang Jae Lee, Omar F. Mohammed, Osman M. Bakr
    Adv. Energy Mater. 2019, 1900084
Keywords:
carrier extraction, carrier temperature, density functional theory, halide perovskites, hot carriers
  • Unprecedented Ultralow Detection Limit of Amines using a Thiadiazole-Functionalized Zr(IV)-Based Metal–Organic Framework
    Arijit Mallick, Ahmed M. El-Zohry, Osama Shekhah, Jun Yin, Jiangtao Jia, Himanshu Aggarwal, Abdul-Hamid Emwas, Omar F. Mohammed, Mohamed Eddaoudi
    J. Am. Chem. Soc., 2019, 141 (18), pp 7245–7249
Keywords:
amines, density functional theory
  • Compositionally Screened Eutectic Catalytic Coatings on Halide Perovskite Photocathodes for Photoassisted Selective CO2 Reduction
    Jie Chen, Jun Yin, Xiaopeng Zheng, Hassan Ait Ahsaine, Yang Zhou, Chunwei Dong, Omar F. Mohammed, Kazuhiro Takanabe, Osman M. Bakr
    ACS Energy Lett., 2019, 4, pp 1279–1286
Keywords:
Selective CO2 reduction, photoelectrocatalytic
  • Compositional, Processing, and Interfacial Engineering of Nanocrystal- and Quantum-Dot-Based Perovskite Solar Cells
    Ala’a O. El-Ballouli, Osman M. Bakr,Omar F. Mohammed 
    Chem. Mater.
Keywords:
​Perovskite solar cells
  • Visualization of Charge Carrier Trapping in Silicon at the Atomic Surface Level Using Four-Dimensional Electron Imaging
    Basamat S. Shaheen, Ahmed M. El-Zohry, Jun Yin, Michele De Bastiani, Stefaan De Wolf, Osman M. Bakr,Omar F. Mohammed
    J. Phys. Chem. Lett., 2019, 10 (8), pp 1960–1966
Keywords:
charge carrier, four-dimensional electron imaging
  • Perovskite-Based Artificial Multiple Quantum Wells
    Kwang Jae Lee, Bekir Turedi, Lutfan Sinatra, Ayan A. Zhumekenov, Partha Maity, Ibrahim Dursun, Rounak Naphade, Noor Merdad, Abdullah Alsalloum, Semi Oh, Nimer Wehbe, Mohamed N. Hedhili, Chun Hong Kang, Ram Chandra Subedi, Namchul Cho, Jin Soo Kim○, Boon S. Ooi, Omar F. Mohammed, Osman M. Bakr​
    Nano Lett.
Keywords:
bandgap engineering, CsPbBr3, femtosecond spectroscopy, hot carrier, Perovskite, quantum well
  • Reducing Defects in Halide Perovskite Nanocrystals for Light-Emitting Applications
    Xiaopeng Zheng, Yi Hou, Hong-Tao Sun, Omar F. Mohammed, Edward H. Sargent, Osman M. Bakr
    J. Phys. Chem. Lett., 2019, 10 (10), pp 2629–2640
Keywords:
nanocrystals, Light-Emitting
  • Single-Crystal MAPbI3 Perovskite Solar Cells Exceeding 21% Power Conversion Efficiency
    Zhaolai Chen, Bekir Turedi, Abdullah Y. Alsalloum, Chen Yang, Xiaopeng Zheng, Issam Gereige, Ahmed AlSaggaf, Omar F. Mohammed, Osman M. Bakr
    ACS Energy Lett., 2019, 4, pp 1258–1259
Keywords:
Single-Crystal MAPbI3 Perovskite Solar Cells
  • Tunable Twisting Motion of Organic Linkers via Concentration and Hydrogen-Bond Formation​
    Ahmed M. El-Zohry, Abdullah Alturki, Jun Yin, Arijit Mallick, Osama Shekhah, Mohamed Eddaoudi, Boon S. Ooi, Omar F. Mohammed​
    J. Phys. Chem. C​
Keywords:
Tunable Twisting Motion, Organic Linkers
  • Unlocking the Effect of Trivalent Metal Doping in All-Inorganic CsPbBr3 Perovskite​
    Jun Yin, Ghada H. Ahmed, Osman M. Bakr, Jean-Luc Brédas, Omar F. Mohammed​
    ACS Energy Lett.​
Keywords:
Trivalent Metal, Metal-ion doping
  • Reduced ion migration and enhanced photoresponse in cuboid crystals of methylammonium lead iodide perovskite
    Ayan A Zhumekenov, Md Azimul Haque, Jun Yin, Ahmed M El-Zohry, Kwang Jae Lee, Ibrahim Dursun, Omar F Mohammed, Derya Baran, Osman M Bakr
    J. Phys. D: Appl. Phys. 52 (2019) 054001 (8pp)
Keywords:
Reduced ion migration, enhanced photoresponse, iodide perovskite
  • Tellurium-Based Double Perovskites A2TeX6 with Tunable Band Gap and Long Carrier Diffusion Length for Optoelectronic Applications
    Dianxing Ju, Xiaopeng Zheng, Jun Yin, Zhiwen Qiu, Bekir Türedi, Xiaolong Liu, Yangyang Dang, Bingqiang Cao, Omar F. Mohammed, Osman M. Bakr, Xutang Tao
    ACS Energy Lett., 2019, 4 (1), pp 228–234
Keywords:
Tunable Band Gap, Long Carrier Diffusion Length
  • Metal Halide Perovskite Nanosheet for X-Ray High-Resolution Scintillation-Imaging Screens
    Yuhai Zhang, Ruijia Sun, Xiangyu Ou, Kaifang Fu, Qiushui Chen, Yuchong Ding, Liang-Jin Xu, Lingmei Liu, Yu Han, Anton V. Malko, Xiaogang Liu, Huanghao Yang, Osman M. Bakr, Hong Liu, Omar F. Mohammed
    ACS Nano
Keywords:
perovskite, colloidal scintillator, self-assembly, X-ray imaging, energy transfer, nanosheets
  • Extraordinary Carrier Diffusion on CdTe Surfaces Uncovered by 4D Electron Microscopy​
    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​
    Chem5, 1–13, March 14, 2019
Keywords:
ultrafast electron imaging, crystal orientation, surface dynamics, renewable energy materials, oxidation layers, neat-surfaces, DFT calculations, Real-space imaging, Surface termination