Dr. Han has a background in semiconductors, with 5 years of experience in numerical modeling and simulation of species and charge transport in semiconducting materials and 1 and a half years of experience in statistical process control for 3D NAND memory manufacture.
Dr. Han completed her Ph.D. at the University of Massachusetts Amherst. Her research focused on numerical modeling and simulation of electron and hole transport in innovative semiconducting materials, including organic nanoparticle assemblies and hybrid perovskites, for photovoltaic devices. This involved coupled electrical and optical modeling to maximize the charge generation rate upon light exposure and photovoltaic device power conversion efficiency. She also has extensive experience in numerical modeling of species transport in ternary semiconductor quantum dots (QDs). This work provided design protocols for synthesizing thermodynamically stable ternary QDs through thermal annealing after their initial colloidal synthesis. Her Ph.D. work led to 6 publications and more than 10 conference presentations in total.
Prior to joining Exponent, Dr. Han worked as a statistical process control engineer in Intel Corporation. She has a strong background in applying state-space model and exponentially weighted moving average (EWMA) model for the development of feedforward and feedback control for 3D NAND memory production. She has significant experience with data analysis, virtual metrology development, and process control strategy development.
In addition to her strong background in computation, Dr. Han is also experienced with failure analysis of consumer electronics with experimental techniques.
CREDENTIALS & PROFESSIONAL HONORS
- Ph.D., Chemical Engineering, University of Massachusetts, Amherst, 2016
- B.S., Chemical Engineering and English, Dalian University of Technology, China, 2010
Ovshinsky Student Travel Award, American Physical Society March Meeting, 2015
Bag M, Renna LA, Jeong SP, Han X, Cutting CL, Maroudas D, Venkataraman D. Evidence for reduced charge recombination in carbon nanotube/perovskite-based active layers. Chemical Physics Letter 2016; 662, 35-41.
Renna LA, Bag M, Gehan TS, Han X. Lahti P, Maroudas D, Venkataraman D. Tunable percolation in semiconducting binary polymer nanoparticle glasses. Journal of Physical Chemistry B 2016; 120, 2544-2556.
Han X, Bag M, Gehan TS, Venkataraman D, Maroudas D. Analysis of charge transport and device performance in organic photovoltaic devices with active layers of self-assembled nanospheres. Journal of Physical Chemistry C 2015; 119, 25826-25839.
Han X, Bag M, Gehan TS, Venkataraman D, Maroudas D. Analysis of hole transport in thin films and nanoparticle assemblies of poly(3-hexlthiophene). Chemical Physics Letter 2014; 610-611, 273-277.
Maroudas D, Han X, Pandey SC. Design of semiconductor ternary quantum dots with optimal optoelectronic function. AIChE Journal 2013; 59, 3223-3236.
Han X, Pandey SC, Maroudas D. Kinetics of interdiffusion in semiconductor ternary quantum dots. Applied Physics Letters 2012; 101, 141906.
Han X, Maroudas D. Charge transport modeling in perovskite hybrid solar cells. AIChE Annual Meeting, Salt Lake City, UT, 2015.
Han X, Maroudas D. Charge carrier transport modeling in organic photovoltaic devices with active layers of P3HT/PCBM self-assembled nanoparticles. AIChE Annual Meeting, Salt Lake City, UT, 2015.
Han X, Maroudas D. Analysis of charge carrier transport in organic photovoltaic thin films and nanoparticle assemblies. APS March Meeting, Denver, CO, 2014.
Han X, Pandey SC, Maroudas D. Effects of composition and compositional distribution on the optoelectronic properties and function of semiconductor ternary quantum dots. AIChE Annual Meeting, San Francisco, CA, 2013.