Laboratory of Infrared Material and Devices

Dr Dongfeng Qi (亓东锋)

Assistant Professor
The Research Institute of Advanced Technologies
Ningbo University 
Ningbo 315211, China
Tel: 86-574-87609873, Email: 


PhD Microelectronics, Xiamen University, China, 2012-2016 
Joint PhD Laser Thermal lab, University of California, Berkeley,2014-2016
MS Microelectronics, Xiamen University, China, 2009-2012
BSc Microelectronics, Ludong University, China, 2005-2009

Work Experiences

2016.12-Present, Assistant Professor, The Research Institute of Advanced Technologies, Ningbo University

Research Interests

1)In-situ visualization of nanosecond laser-materials processing:



2)Maskless Fabrication of Electronics and Energy Devices:


3)Directed Templating of Semiconductor Nanocrystals Through Laser Melting:


Selective Publications

1. Letian Wang, Yoonsoo Rho, Wan Shou, Sukjoon Hong, Kimihiko Kato, Matthew Eliceiri, Meng Shi, Costas P. Grigoropoulos, Heng Pan, Carlo Carraro, and Dongfeng Qi,Programming Nanoparticles in Multiscale:Optically Modulated Assembly and Phase Switching of Silicon Nanoparticle Array. ACS Nano, 2018, DOI: 10.1021/acsnano.8b00198.
2. Dongfeng Qi*, Hanhui Liu, Donglin Huang, Letian Wang, Songyan Chen*, Costas P. Grigoropoulos, High-quality strain-relaxed Si0.72Ge0.28 layers grown by MBE-UHV/CVD combined deposition chamber, Journal of Alloys and Compounds, 2018, 735: 588-593.
3. Dongfeng Qi*, Shihao Huang, Letian Wang, Meng Shi, Songyan Chen*, Costas P. Grigoropoulos,Nanosecond laser induce size-controllable SiGe islands with high Ge composition, large aspect ratio and defect-free characteristics, Materials Letters, 2018, 211: 250-253.
Before 2018:
1. Dongfeng Qi#, Dongwoo Paeng#, Junyeob Yeo, Eunpa Kim, Letian Wang, Songyan Chen, Costas P. Grigoropoulos*, Time-resolved analysis of thickness-dependent dewetting and ablation of silver films upon nanosecond laser irradiation. Appl. Phys. Lett., 2016, 108: 211602.
2. Dongfeng Qi, Hanhui Liu, Wei Gao, Qinqin Sun, Songyan Chen*, Wei Huang, Cheng Li, Hongkai Lai, Self-mask fabrication of uniform orientated SiGe island/SiGe/Si hetero-nanowire arrays with controllable sizes. J. Mater. Chem. C, 2013, 1: 6878-6882.
3. Dongfeng Qi, Hanhui Liu, Wei Gao, Songyan Chen*, Cheng Li, Hongkai Lai, Wei Huang, Jun Li, Investigations of morphology and formation mechanism of laser-induced annular/droplet-like structures on SiGe film. Opt. Express, 2013, 21(8): 9923.
4. Dongfeng Qi, Hanhui Liu, Songyan Chen*, Cheng Li, Hongkai Lai, Thermal stability investigation of SiGe virtual substrate with a thin Ge buffer layer grown on Si substrate. J. Cryst. Growth, 2013, 375: 115-118.
5. Dongfeng Qi, Xin Li, Peng Wang, Songyan Chen*, Wei Huang, Cheng Li, Kai Huang, Hongkai Lai, Evolution of laser-induced specific nanostructures on SiGe compounds via laser irradiation intensity tuning. IEEE Photon. J., 2014, 6(1): 2200005.