What's New:

 

 

Dr. Udara Saparamadu

Dr. Udara Saparamadu, Postdoctoral Scholar
Materials Science and Engineering
219A, Steidle Building, University Park, PA 16802
uzs20@psu.edu

Thermal Lab

Education and Professional:

  • Postdoc in Material Science and Engineering, Penn State University, PA, USA (2018-present)
  • Ph.D. in Physics, University of Houston, TX, USA (2018)
  • BS in Physics, University of Peradeniya, Sri Lanka (2013)

Research Interest:

  • High temperature thermoelectric materials and devices, High energy ball milling for material fabrication, Nanostructured materials for Energy Harvesting applications.

Honors and Awards:

  • Collaborated research with German Aerospace Center won the best poster award in 35th International Conference on Thermoelectrics (2016)

Brief Research Summary:

My main research is about high temperature thermoelectric materials and device fabrication for waste heat recovery applications. Currently, my work is mainly focused in half-Heusler thermoelectric materials to design and fabricate high power output thermoelectric modules. Also, I’m focusing on air resistant coatings for these devices to reduce the device degradation at high temperature.  

 

Publications

  • U. Saparamadu, J. Mao, K. Dahal, H. Zhang, F. Tian, S. Song, W. Liu, Z. Ren, “The effect of charge carrier and doping site on thermoelectric properties of Mg2Sn0.75Ge0.25”, Acta Materialia 124, 528-535.
  • J. de Boor*, U. Saparamadu*, J. Mao, K. Dahal, E. Muller, Z. Ren, “Thermoelectric performance of Li doped, p-type Mg2(Ge, Sn) and comparison with Mg2(Si, Sn)”, Acta Materialia 120, 273-280.
  • U. Saparamadu*, J. de Boor*, J. Mao, S. Song, F. Tian, W. Liu, Q. Zhang, G. Chen, Z. Ren, “Optimizing the thermoelectric properties of p-type Mg2Sn0.75Ge0.25 by dopant species”, Acta Materialia 141, 154-162.
  • U. Saparamadu, Chunhua Li, David Broido, Ran He, Hangtian Zhu, Jun Mao, Shaowei Song, Jingyin Sun, Zhifeng Ren, “Improved Thermoelectric Performance of Tellurium by Alloying with a Small Concentration of Selenium to Decrease Lattice Thermal Conductivity”, ACS Applied  Materials and Interfaces 11, 511-516.
  • J. Mao, Y. Wang, H.S. Kim, Z. Liu, U. Saparamadu, F. Tian, K. Dahal, Jingying Sun, Shuao Chen, Weishu Liu, Zhifeng Ren, “High thermoelectric power factor in Cu-Ni alloy originate from potential barrier scattering of twin boundaries”, Nano energy 17, 279-289.

*Equal contribution

Google Scholar: https://scholar.google.com/citations?user=MBdG7-wAAAAJ&hl=en