Dr. Liu Xiaogang has a multidisciplinary education, work, and research background. He studied in electrical and electronic engineering (2002—2006, B.Eng.), materials science and engineering (2008—2009, M.Sc./M.Eng.) and physical chemistry (2010—2014, PhD). He also worked in the industry as a product engineer (2006—2008, semiconductor), a research engineer (2010, optics), and a research associate (2013, solar cells). He began his independent research with a SMART Scholar Fellowship (2014—2016), and joined SUTD as an Assistant Professor in 2017.
Dr. Liu Xiaogang’s current research is to study the fundamental structure-property relationships of organic fluorescent dyes and sensors, which can be used in a diverse range of applications, such as fluorescence imaging, solar cells, and dye lasers. Based on such knowledge, he is developing novel fluorophores and sensors with enhanced performance.
His long-term research vision is to set up a complete set of molecular design rules, such that one gains the ultimate ability to molecular engineer “dial-up” properties to suit a given application. He hopes to shift the chemistry of fluorophores from trial-and-error to molecular engineering.
Dr. Liu Xiaogang and his co-workers’ research has been highlighted by ACS Noteworthy Chemistry of American Chemical Society (2014), and voted as the #4 of top 10 breakthroughs in Physics for 2010 by Institute of Physics.
- PhD, Cavendish Laboratory (Department of Physics), University of Cambridge (UK), 2014.
- M.Eng., Department of Materials Science and Engineering, Massachusetts Institute of Technology (USA), 2009.
- M.Sc., Singapore-MIT Alliance, National University of Singapore, 2009.
- B.Eng., School of Electrical and Electronic Engineering, Nanyang Technological University (Singapore), 2006.
- Organic dyes
- Fluorescent sensors (i.e., viscosity and temperature sensors)
- Fluorophore design and engineering
- Solvent effects
- Molecular aggregation effects
- Physical Chemistry
- Computational Chemistry
- X. Liu*, Q. Qiao, W. Tian, W. Liu, J. Chen, M. J. Lang, Z. Xu*, “Aziridinyl fluorophores demonstrate bright fluorescence and superior photostability through effectively inhibiting twisted intramolecular charge transfer”, Journal of American Chemical Society, 2016, 138, 6960-6963.
- C. Cao, X. Liu*, Q. Qiao, M. Zhao, W. Yin, D. Mao, H. Zhang* and Z. Xu*, “A Twisted-Intramolecular-Charge-Transfer (TICT) Based Ratiometric Fluorescent Thermometer with a Mega-Stokes Shift and a Positive Temperature Coefficient“, Chemical Communications, 2014, 50, 15811-15814.
- X. Liu, D. Mao, J. M. Cole, Z. Xu, “Temperature Insensitive Fluorescence Intensity in a Coumarin Monomer-Aggregate Coupled System“, Chemical Communications, 2014, 50, 9329-9332.
- X. Liu, P. R. Coxon, M. Peters, B. Hoex, J. M. Cole, D. J. Fray, “Black Silicon: Fabrication Methods, Properties and Solar Energy Applications“, Energy and Environmental Science, 2014, 7, 3223-3263.
- X. Liu, Z. Xu, J. M. Cole, “Molecular Design of UV-vis Absorption and Emission Properties in Organic Fluorophores: towards Larger Bathochromic Shifts, Enhanced Molar Extinction Coefficients and Greater Stokes Shifts”, Journal of Physical Chemistry C, 2013, 117, 16584–16595.
- X. Liu, J. M. Cole, P. G. Waddell, T. C. Lin, J. Radia, A. Zeidler, “Molecular Origins of Optoelectronic Properties in Coumarin Dyes: Towards Designer Solar Cell and Laser Applications”, Journal of Physical Chemistry A, 2012, 116, 727–737.
- B. Zhang, Y. Luo, X. Liu, G. Barbastathis, “Macroscopic Invisibility Cloak for Visible Light”, Physical Review Letters, 2011, 106, 033901.
- SMART Scholar Fellowship, Singapore-MIT Alliance for Research and Technology, 2014—2016
- Clean Energy Scholarship, National Research Foundation of Singapore, 2010—2014
- Singapore-MIT Alliance Graduate Fellowship, National University of Singapore, 2008—2009
- Singapore GLC Undergraduate Scholarship, Nanyang Technological University, 2002—2006