DU, Wei
Professor
Dr. Wei Du received her B.S. degree in Chemistry in July 2012 from Fudan University, and her Ph.D. degree in Chemistry in December 2017 from National University of Singapore (NUS) under the supervision of Prof. Christian A. Nijhuis. She then worked as a Postdoc (Research Fellow) at Nanyang Technological University (NTU) from April 2018 to March 2021 with Prof. Qihua Xiong. In May 2021, she joined FUNSOM at Soochow University as a full professor.
Email: duwei@suda.edu.cn
Research Accomplishment:
Dr. Wei Du has been working with on-chip electrically-driven plasmonic light sources based on tunnel junctions, and the main achievements include: (1) Initiated the research of electrically-driven plasmonic light sources based on self-assembled monolayer tunnel junctions; and realized molecular electronic control over the plasmon excitation benefitting from the variety of molecular chemical structures and functions. (2) Demonstrated highly efficient electronic-plasmonic transducers based on inorganic oxide tunnel junction; and realized on-chip plasmonic devices with integrated functions including electrical excitation of plasmons, waveguiding of plasmons, and electrical detection of plasmons. (3) Characterized the transient dynamics of exciton-plasmon coupling in 2D material-plasmonic hybrid system using time-resolved pump-probe spectroscopy, enabling the possibility for ultrafast modulation of plasmonic signal. The above works indicate that surface plasmons may have potential applications in future nanophotonic devices and integrated optical circuits. The corresponding results have been published as first authors in international scientific journals, such as Nature Photonics, Nano Letters, ACS Photonics, and also lead to three granted US patents.
Selected Publications (*corresponding author, #co-first author):
1. Wei Du#; Tao Wang#; Hong-Son Chu; Lin Wu; Rongrong Liu; Song Sun; Wee Kee Phua; Lejia Wang; Nikodem Tomczak*; Christian A. Nijhuis*; On-chip Molecular Electronic Plasmon Sources Based on Self-assembled Monolayer Tunnel Junctions, Nature Photonics, 2016, 10: 274-280.
2. Wei Du#; Tao Wang#; Hong-Son Chu; Christian A. Nijhuis*; Highly Efficient On-Chip Direct Electronic-Plasmonic Transducers, Nature Photonics, 2017, 11: 623-627.
3. Wei Du#; Yingmei Han#; Hongting Hu; Hong-Son Chu; Harshini V. Annadata; Tao Wang; Nikodem Tomczak; Christian A. Nijhuis*; Directional Excitation of Surface Plasmon Polaritons via Molecular Through-Bond Tunneling across Double-Barrier Tunnel Junctions, Nano Letters, 2019, 19(7): 4634-4640.
4. Wei Du#; Jiaxin Zhao#; Weijie Zhao; Shunping Zhang; Hongxing Xu; Qihua Xiong*; Ultrafast Modulation of Exciton–Plasmon Coupling in a Monolayer WS2–Ag Nanodisk Hybrid System, ACS Photonics, 2019, 6(11): 2832-2840.
5. Wei Du; Xinglin Wen*; Davy Gérard; Cheng-Wei Qiu; Qihua Xiong*; Chiral plasmonics and enhanced chiral light-matter interactions, Science China Physics, Mechanics & Astronomy, 2020, 63: 244201.
Career:
We are actively looking for postdoc candidates (2 positions) having demonstrated expertise in the following topics:
Nanoscale opto-electronic devices;
Plasmonics and nano-photonics;
Two-dimensional materials and their optical properties.
For any further information, please contact Professor Wei Du (duwei2021@suda.edu.cn).
Edited by Juan Yang