Associate Professor Alex Yan Qingyu

Email: alexyan@ntu.edu.sg
Phone: (+65) 6790 4583
Office: N4.1-02-27
Related link: http://www.ntu.edu.sg/home/alexyan

Current Research Interests
The current research interests focus on synthesis and assemble of various nanocrytals for device applications: (1) Synthesize magnetic nanoparticles by chemical/physical methods and assemble them into ordered array for the potential applications in the next generation of data storage devices. (2) Synthesize/assemble chalcogenide nanocrystals by chemical methods and evaluate their photovoltaic, thermalelectric properties and process on their integration into devices. (3) Fundamental study on shape, phase, compostion and property control during nanocrystal synthesis.

Biographical Information

He obtained his BS in Materials Science and Engineering, Nanjing University, 1999. He finished his Phd from Materials Science and Engineering Department of State University of New York at Stony Brook in 2004. After that, He joined the Materials Science and Engineering Department of Rensselaer Polytechnic Institute as a postdoctoral research associate until joining Nanyang Technological University in 2007.

Teaching

• MS4003 Nanomaterials & Biomaterials
• MS4526 Photovoltaic Devices and Energy Storage

Selected Publications

Qingyu Yan, Makala S. Raghuveer, Huafang Li, Binay Singh, Taegyun Kim, Mutsuhiro Shima, Arijit Bose, Ganapathiraman Ramanath, “Rod-shaped assemblies of FePt-PtTe2 through dynamic templating” Advanced Materials (in press) .

Arup Purkayastha, Qingyu Yan, Darshan D. Gandhi, Huafang Li, Raju V Ramanujan, Theodorian Borca-Tasciuc, Ganapathiraman Ramanath, “Synthesis and assembly of core-shell branched architectures of bismuth telluride nanorods” Advanced Materials (in press).

Qingyu Yan, A. Purkayastha, D. Gandhi, H. Li, T. Kim, G. Ramanath, “Directed synthesis and assembly of magnetic nanoparticle chains using difunctional couplers and polyvalent molecules” Advanced Materials 19, p3286, (2007).

Qingyu Yan, A. Purkayastha, T. Kim, R. Kroger, A. Bose, G. Ramanath, “Monodisperse FePt nanoparticles of tunable size, composition, stability, and functionalizability, from microemulsions”, Advanced Materials 18, p2569 (2006).

Qingyu Yan, T. Kim, M. Shima, A. Purkayastha, P. G. Ganesan, G. Ramanath, “Enhanced chemical ordering and magnetic coercivity in FePt nanoparticles by Sb-doping”, Advanced Materials, 17, p2233 (2005).

Qingyu Yan, R. J. Gambino, S. Sampath, Q. Huang, “Neutron diffraction and ferromagnetic resonance studies on plasma-sprayed MnZn ferrite films", Journal of Applied Physics. 97 (2005).