Academic Profile

Academic Profile

Prof Xiong Qihua

Professor, School of Physical & Mathematical Sciences - Division of Physics & Applied Physics

Prof Xiong Qihua

Dr. Qihua Xiong is currently Nanyang Assistant Professor at Nanyang Technological University. He holds a joint appointment between School of Physical and Mathematical Sciences and School of Electrical and Electronic Engineering. Prior to joining NTU, he worked as a postdoctoral research fellow in the laboratory of Professor Charles Lieber at Harvard University.

Dr. Xiong finished his B.S. degree in Physics at Wuhan University in 1997. After obtained his M.S. diploma in physics from Shanghai Institute of Applied Physics, Chinese Academy of Sciences (CAS) in 2000, he went to United States of American with a scholarship support to pursue his Ph.D. research. In 2006, he received his Ph.D. degree in materials science at The Pennsylvania State University under the supervision of Professor Peter Eklund. His thesis research work focuses on fundamental physical properties especially on phonon properties of semiconductor nanowires. During his postdoctoral training, he has extended his research to include high performance nanoelectronic devices based on one-dimensional electron gas in nanowire heterostructures and nanoelectronic devices for single molecule biosensing.

Dr. Xiong received several awards and fellowships during his graduate and undergraduate studies, including Pan-American Advanced Studies Institute (PASI) fellowship (DOE and NSF, 2006), Graduate Award for Academic Excellence (The Pennsylvania State University, 2006), Excellent Graduate Fellowship Award (1998 and 1999, CAS), Hui Kai Fellowship Award (Wuhan University, 1996), Gui Zhiting-Xu Hailan Fellowship Award (Wuhan University, 1995) and Outstanding Student Award (Wuhan University, 1994). He won 2nd round Singapore National Research Foundation Research Fellowship in 2009 and chose NTU as the host institute to carry out his research.
Research Interests
Dr. Qihua Xiong?s research is driven by the paradigm of ?bottom-up? nanoscience and nanotechnology. His research covers rational synthesis of functional semiconductor nanomaterials, systematic investigations on their physical properties at quantum size regime and practical applications in nanoelectronics, nanophotonics and nanobiotechnology. His expertise includes Raman scattering spectroscopy, optical absorption spectroscopy, electron microscopy and spectroscopy, scanning probe microscopy, electrical transport, photoconductivity and nanopore biosensing. His group at NTU recently focuses on the following subjects:
? Develop novel approaches to synthesize and tune 1D nanomaterials and heterostructures
? Investigate their fundamental properties as an outcome of confined geometry and anisotropy
? Explore the applications of nanomaterials in nanoelectronics, nanophotonics, energy harvesting
? Build nanoelectronic-bio interfaces, e.g., nanopore field effect transistor for biosensing
Current Projects
  • 100% Quantum Yield Organo-Lanthanide Systems For PhotonicsAnd Bio-Imaging
  • Active plasmonic structures and their applications in biosensing
  • Attosecond X-ray Metrology of Valence Electron Dynamics in Nanoscale Functional Materials
  • Controlling Valley Polarization in 2D Transition Metal Dichalcogenides with Chiral Plasmonic Nanostructures (2D-CHIRAL)
  • Coupling between Surface Plasmons and Excitons: Towards Sub-wavelength Photonics
  • Efficient Single Photon Source Based on All-Inorganic Perovskite Nanocrystals Coupled to Microcavities
  • Engineering Fluorinated Organo-Lanthanide Complex for NIR-Vis Upconversion Fluorophores
  • Excitonics Science and Technology toward Revolutionary Semiconductor Lighting: Ultra-Efficiency Excitonic Energy Transfer for Next-Generation Lighting and Displays
  • Expanding the Toolbox of Laser Cooling Towards the Next-Generation Optical Refrigeration
  • Fabrication, Transfer and Characterization of Phase Change VO2 Films
  • Fluorinated Organo-Lanthanide Systems for Laser Cooling and Nanophotonics
  • Geometrical Quantum Materials
  • Geometrical Quantum Materials (GQMs)
  • Large Scale Design-based Functional Nanomaterials and Heterostructures: Aim for Sustainability
  • Laser Cooling Study on Wide Bandgap Semiconductors Based on Fiber Coupling Technology
  • Laser Cooling of II-VI Semiconductors
  • Laser Cooling of Solids
  • Near-Field Photochemical Imaging Studies on Sub-5nm Feature Nanostructures and Applications for SERS Biosensing
  • Networks of Bose-Einstein Condensates in Exciton-Polariton Lattices
  • OFN as Molecular Barrier to Enhance Aromatic Fluorophores for Flexible OLEDs
  • Optical Probing of 2D Dichalcogenides Crystals for Next Generation Valleytronics
  • Optical Properties of Novel Nanomaterials and Field Effect Transistor Nanopore Devices for Single Molecular Detection and DNA Sequencing
  • Organometal Halide Perovskite Quantum Dots Integrated intoNovel Photonic Crystal Designs for Optoelectronics Applications
  • Perovskite Optoelectronics: Multidimensional Perovskites For High Performance Solution-Processed Light-Emitting Devices
  • Perovskite Optoelectronics: Multidimensional Perovskites for High Performance Solution-Processed Light-Emitting Devices
  • Probing Charge Dynamics in 2D Layered Semiconductor Heterostructures
  • Probing Light-Matter Interaction in Emergent 2D and 3D Metalorganic Perovskites
  • Quantum Transport and Optical Spectroscopy Studies of Topological Insulator
  • Room Temperature Optical Control of Polariton Condensate in Perovskite Nanowire
  • Room-Temperature Terahertz Emitters and Detectors Based on Cavity Polaritons in Perovskite Materials
  • Solid State Nanopore Devices for Single Molecule Biophysics and Sequencing
Selected Publications
  • SungWoo Nam, Xiaocheng Jiang, Qihua Xiong, Donhee Ham and Charles M. Lieber. (2009). Vertically integrated, three-dimensional complementary metal-oxide-semiconductor circuits. Proceedings of the National Academy of Sciences of the United States of America (PNAS), 106(50), 21035-21038.

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