Scopus Author ID: 36106587800

Metrics for Academic and Research Impact

Employments

City University of Hong Kong, Dept. of MNE

Aug 2021 → present   Assistant Professor

Argonne National Laboratory

Mar 2019 → Aug 2021 Postdoc 

Education

BS in Optics (Sun Yat-Sen University)

MS in ECE (Rice University)

PhD in Engineering (Rice University)

Brief introduction

Dr. Wen is an Assistant Professor in the Dept. of Mechanical Engineering of CityU. He got a PhD degree from Rice University under the supervision of Prof. Jun Lou and Prof. Pulickel Ajayan. and he did his postdoc in Argonne National Lab. He has co-authored more than thirty papers in prestigious journals such as Nature Materials, Nature Photonics, Nature communications, Science Advances, Advanced Materials, PNAS etc.

Slected publication:  

X. Wen, et. al. "3D Printed Silica with Nanoscale Resolution." Nature Materials. 1-7.(2021)

H. Tsai, …, X.Wen, … et al. “Bright and Stable Light Emitting Diodes Made with Perovskite Nanocrystals Stabilized in Metal-Organic Frameworks” Nature Photonics. 1-7 (2021)

X. Wen, et al. "Ghost imaging second harmonic generation microscopy." Applied Physics Letters 116.19 (2020): 191101.

J. Liang, …, X.Wen, … et al. "Perovskite‐Derivative Valleytronics." Advanced Materials 32.48 (2020): 2004111.

X. Wen, et al. "Ultrafast probes of electron–hole transitions between two atomic layers." Nature communications 9.1 (2018): 1-9.

Y. Wang, …, X.Wen, … et al. "Cryo-mediated exfoliation and fracturing of layered materials into 2D quantum dots." Science advances 3.12 (2017): e1701500.

Z. Yan, …, X.Wen, … et al. "Three-dimensional mesostructures as high-temperature growth templates, electronic cellular scaffolds, and self-propelled microrobots." PNAS, 114.45 (2017): E9455-E9464.

H. Chen^#, X. Wen^#, et al. "Ultrafast formation of interlayer hot excitons in atomically thin MoS 2/WS 2 heterostructures." Nature communications 7.1 (2016): 1-8.

X. Wen, et al. "Broadband THz reflective polarization rotator by multiple plasmon resonances." Optics Express 22.23 (2014): 28292-28300.

Actively recruiting incoming Ph. D. student, RA and postdocs in Intelligent Additive Manufacturing and Advanced Spectroscopy & Imaging. Whose research directions include 3D printing; laser direct writing; spectroscopy and imaging; robotics, control, optics and photonics; polymer-derived ceramics; polymer chemistry and physics; colloidal nanoparticle synthesis and applications, etc. are welcome to reach me via email. 

Intelligent Additive Manufacturing

  Our aim is to develop unique additive manufacturing techniques of functional materials such as glass, ceramics and composites, especially in the microscale and nanoscale. By functional, the group is aiming at the application in printing on-demand micro photonic components, micro lasers, electronic chips, flexible electronics, 3D microfluidic chips for cell diagnosis, and functional composite materials with pre-designed mechanical, thermal, sonical, optical and electrical performances to revolute the industry. We will develop every technique via robotic and intelligent means, eliminating intensive trial-and-error efforts by human hands, freeing your hands and flying your minds. Come, join and grow with us. We are looing for students like: 

1. Students with a degree in physics, optics/ optical engineering etc. with strong background in the field of laser, ultrafast laser, photonics, optical system design and instrumentation are encouraged to apply.

2. Students with a degree in polymer science, material science, chemistry, etc.  with strong background in the field of polymer, ceramics, colloidal nano particle and composite materials are encouraged to apply.

3. Students with a degree in mechanical, electric, biomedical, computer and other engineering with a solid background in robotics, control, and instrumentation are encouraged to apply.

4. Students who is a quick leaner and good innovator are very encouraged to apply.

Successful candidates will work with Dr. Wen and will have the opportunity to work with the cutting-edge materials and technology and to work in an international, collaborative, supportive, and inclusive interdisciplinary research environment. The group has long-term friendly relationship with excellent professors in the CityU, Chinese top universities, CAS institutes, US ivy league schools and national labs, students will have chances to visit and work at these places. Students are encouraged to collaborate with local and worldwide renowned scientists. Candidates with a master’ s degree, relevant expertise and research skills are preferable.

Advanced Spectroscopy and Imaging

Several joint PhD/ Postdoc/ RA positions in Advanced Spectroscopy and Imaging
The City University of Hong Kong (CityU) × SongShan Lake Materials Laboratory

Department of Mechanical Engineering × Material characterization Platform

Collaborator: 

Hailong Chen, Associated Professor in the CAS Beijing institute of Physics and oversees the optical characterization platform in SongShan Lake Material Laboratory. He has co-authored more than thirty papers in prestigious journals such as Nature communications, Advanced Materials, ACS nano, PNAS, JPCL etc.

Our aim is to develop unique spectroscopic and imaging techniques with ultrafast time resolution (femtosecond) and ultrahigh spatial resolution (nanometer), applying the most advanced instruments and machine learning means, to reveal the physical and chemical mysteries in newly emerged functional materials. The lab has close connections with tens of renowned material synthesis groups in China and overseas and will have access to many unique samples. If you join us, you will have access to any lasers, spectroscopies and imaging equipment you can imagine and are needed, and the lab have adequate funding to acquire necessary instrument during the project. Both two advisors have profound experiences in spectroscopic and imaging instruments, you will have guidance and help. We are lookign for students like:

1. Candidates with a degree in physics, optics/ optical engineering etc. with strong background in the field of spectroscopy, imaging, computational imaging, microscopy, laser, ultrafast laser, photonics, optical system design and instrumentation are encouraged to apply.

2. Candidates with a degree in material science, chemistry, chemical Engineering, etc.  with strong background in the field of nano materials, perovskites, metals, thin films etc., are encouraged to apply.

3. Candidates who is a quick leaner and good innovator are very encouraged to apply.

Successful candidates will work with Dr. Wen and Prof. Chen and will have the opportunity to work with the cutting-edge materials and technology and to work in an international, collaborative, supportive, and inclusive interdisciplinary research environment. The group has long-term close relationship with excellent professors in the CityU, Chinese top universities, CAS institutes, US ivy league schools and national labs. Students are encouraged to collaborate with local and worldwide renowned scientists.

Candidates with a master’ s degree, relevant expertise and research skills are preferable for Ph. D positions; Candidates with a recent Ph. D degree with good publication record and/ or good instrumental skills are preferable for postdoc positions.

Intelligent Additive Manufacturing

Laser direct writing

Advanced Spectroscopy and Imaging