Fu, Xuewen - Brookhaven National Laboratory - Department of Condensed Matter Physics and Materials Science

个人简介

Education Sep. 2009- Jul. 2014 School of Physics, Peking University, Beijing, China Ph.D., Condensed Matter Physics Advisor: Dapeng Yu Sep. 2005- Jul. 2009 Department of Physics, Beijing Normal University B.S., Physics Advisor: Prof. Youhui Gao Appointments 06/2017 -Present Research Associate, Condensed Matter Physics and Materials Science, Brookhaven National Laboratory, NY, US BNL Electron Microscopy and Nanostructure Group Advisor: Prof. Yimei Zhu 11/2014 - 06/2017 Postdoctoral Fellow, Chemistry, California Institute of Technology, CA, US Physical Biology Center for Ultrafast Science and Technology Advisor: Nobel Laureate, Prof. Ahmed H. Zewail 09/2009 - 10/2014 Research Assistant, Physics, Peking University, Beijing, China Laboratory of Nanostructures and Low-dimensional Physics Advisor: Prof. Dapeng Yu 03/2012 - 03/2013 Research Assistant, Physics, EPFL, Lausanne, Switzerland Laboratory of Quantum Optoelectronics Advisor: Prof. Benoît Deveaud 07/2007 - 07/2009 Research Assistant, Physics, Beijing Normal University, Beijing, China Laboratory of nanomaterials Advisor: Prof. Youhui Gao Honors and Awards 2014 Academic Elite of Peking University, First Prize of Peking University Physical ‘Zhong Sheng Biao’ Academic Forum, Outstanding Graduates Awards of Beijing, Peking University Outstanding Ph.D. Thesis, Outstanding Graduates Awards of Peking University 2013 Gatan China Ph.D. Fellowship，Liao Kaiyuan Scholarship, Peking University Academic Innovation Scholarship, First Prize of China Electron Microscopy Photography Contest 2012 Peking University Excellent Study Scholarship, Peking University May Fourth Scholarship 2010 Peking University Merit Student 2009 Beijing Normal University Outstanding Graduate, Beijing Normal University Outstanding Bachelor Thesis 2008 Beijing Normal University Scholarship 2007 National Motivational Scholarship, Beijing Normal University First Prize Scholarship, Beijing Normal University Merit Student 2006 Beijing Normal University Scholarship

研究领域

My research area is four-dimensional ultrafast electron microscopy (4D-EM) and atomic/nanoscale ultrafast dynamics and physics. Specifically, I am interested in physical and chemical properties and related dynamical processes of functional nanomaterials during their functions by in-situ electron microscopy, 4D-EM and ultrafast nanoscale optical spectroscopy, with an emphasis on developing advanced in-situ 4D ultrafast transmission electron microscopy (UTEM), 4D ultrafast scanning electron microscopy (USEM) and 4D ultrafast cathodoluminescence (TRCL) to reveal the structural evolution and energy carrier (electrons, charges, phonons, magnon, excitons etc.) transport and interaction dynamics of functional nanomaterials at an unprecedented spatiotemporal resolution (atomic to nanoscale and femtosecond (10^-15 s) to millisecond ). I am currently working on developing operando UTEM techniques such as liquid-phase and gas-phase, in situ photon induced near field electron microscopy (PINEEM) and solid state open cell technique etc., to investigate ultrafast dynamical phenomena of nanostructures, chemical and physical systems in their native environment and real functional process.

近期论文

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X. W. Fu*, S. D. Pollard, B. Chen, B. K. Yoo, H. Yang, Y. Zhu*. “Optical Quenching of Magnetic Vortex Visualized In Situ by Lorentz Electron Microscopy”. Microscopy and Microanalysis 24 (S1), 912-913 (2018). (*corresponding author) J. Li, K. Sun, J. Li, Q. Meng, X. W. Fu,W. Yin, D. Lu, Y. Li, M. Babzien, M. Fedurin, C. Swinson, R. Malone, M. Palmer, L. Mathurin, R. Mason, J. Chen, R. M. Konik, R. J. Cava, Y. Zhu, J. Tao*. “Probing the pathway of an ultrafast structural phase transition to illuminate the transition mechanism in Cu2S”. Applied Physics Letters113, 041904 (2018). X. W. Fu*, S. D. Pollard, B. Chen, B. K. Yoo, H. Yang, Y. Zhu*. Optical manipulation of magnetic vortices visualized in situ by Lorentz electron microscopy. Science Advances 4, eaat3077 (2018). (*corresponding author) X. W. Fu*, B. Chen, C. Z. Li, H. Li, Z. M. Liao*, D. P. Yu and Ahmed H. Zewail."Direct Visualization of Photomorphic Reaction of Plasmonic Nanoparticles in Liquid by Four-Dimensional Electron Microscopy". The Journal of Physical Chemistry Letters 9, 4045–4052 (2018). (*corresponding author) B. Chen, X. W. Fu, J. Tang, Mykhaylo Lysevych,Hark Hoe Tan, Chennupati Jagadish and Ahmed H. Zewail. “Dynamics and control of gold-encapped gallium arsenide nanowires imaged by 4D electron microscopy”. Proc. Natl. Acad. Sci. U.S.A 1708761114 (2017). H. Chen, X. W. Fu, Q. An, B. Tang, S. R. Zhang, H. Yang, Y. Long, M. Harfouche, H. L. Wang, Y. X. Li. “Determining the Quality Factors of Dielectric Ceramic Mixtures with Dielectric Constants in the Microwave Frequency”. Scientific Reports 7, 14120 (2017). X. W. Fu*, B. Chen, J. Tang* and Ahmed H. Zewail. “Nanobubble-driven superfast diffusion dynamics of Brownian particles”. Science Advances 3 (8), e1701160 (2017) (*corresponding author) X. W. Fu, B. Chen, J. Tang, M. Th. Hassanand and Ahmed H. Zewail. “Imaging rotational dynamics of nanoparticles in liquid by 4D electron microscopy”. Science 355, 494–498 (2017). X. W. Fu, Z. M. Liao, R. Liu, J. Xu, D. M Liu and D. P Yu. “Strain-Gradient Modulated Exciton Emission in Bent ZnO Wires Probed by Cathodoluminescence”. ACS Nano 10 (12), 11469–11474 (2016). X. W. Fu, Z. M. Liao, R. Liu, F. Lin, R. Zhu, W. Zhong, Y. K. Liu, W. L. Guo and D. P. Yu. “Strain Loading Mode Dependent Bandgap Deformation Potential in ZnO Micro/Nanowires”. ACS Nano 8 (4), 3412-3420 (2015). R. Liu, X. C. You, X. W. Fu, F. Lin, J. Meng, D. P. Yu and Z. M. Liao. “Gate modulation of graphene-ZnO nanowire Schottky diode”. Scientific reports 5 (2015). M. Shahmohammadi, G. Jacopin, X. W. Fu, J. D. Ganière, D. P. Yu and B. Deveaud. “Exciton hopping probed by picosecond time-resolved cathodoluminescence” Applied Physics Letters 107 (14), 141101 (2015). X. W. Fu, G. Jacopin, M. Shahmohammadi, R. Liu, M. Benameur, J. D. Ganière, J. Feng, W. L. Guo, Z. M. Liao, B. Deveaud and D. P. Yu. “Exciton Drift in Semiconductors under Uniform Strain Gradients: Application to Bent ZnO Microwires”. ACS Nano 8 (4), 3412-3420 (2014). (Featured on Advances in Engineering and highlighted in PKU news, PKU Alumni news.) X. W. Fu, C. Su, Q. Fu, X. L. Zhu, J. Feng, J. Li and D. P. Yu. “Tailoring Exciton Dynamics by Elastic Strain-gradient in Semiconductors”. Advanced Materials 26, 2572-2579 (2014). (Highlighted in PKU news, PKU Alumni news.) X. W. Fu, Z. M. Liao and D. P. Yu. “Electronic and Mechanical Coupling in Elastically Bent ZnO Micro/Nanowires”. MRS Proceedings 1664, (2014). (Invited review). X. W. Fu, Z. Y. Zhang, Z. H. Zhang, X. L. Zhu, R. Zhu, J. Xu, W. L. Guo and D. P. Yu. “Outermost tensile strain dominated exciton emission in bending CdSe nanowires”. Science China Materials 57 (1), 26-33 (2014). F. Lin, S. W. Chen, J. Meng, G. Tse, X. W. Fu, F. J. Xu, B. Shen, Z. M. Liao and D. P. Yu. “Graphene/GaN diodes for ultraviolet and visible photodetectors”. Applied Physics Letters 105 (7), 073103 (2014). X. W. Fu, Z. M. Liao, R. Liu, J. Xu and D. P. Yu. “Size-Dependent Correlations between Strain and Phonon Frequency in Individual ZnO Nano/micro-wires”. ACS Nano 7, 8891 (2013). X. W. Fu, Z. M. Liao, J. Xu, X. S. Wu, W. L. Guo and D. P. Yu. “Improvement of Ultraviolet Photoresponse of Bent ZnO Microwires by Coupling Piezoelectric and Surface Oxygen Adsorption/desorption Effects”. Nanoscale 5, 916-920 (2013). X. W. Fu, Q. Fu, L. Z. Kou, X. L. Zhu, R. Zhu, J. Xu, Z. M. Liao, Q. Zhao, W. L. Guo and D. P Yu. “Modifying Optical Properties of ZnO Nanowires via Strain Gradient”. Frontiers of Physics 8,509 (2013). (Featured on the cover of Frontiers of Physics.)