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THIDARAT SUPASAI

Thidarat-2 email: fscitrs@ku.ac.th
Education: B.Sc.(Physics) Mahidol University, Thailand.
M.Sc.(Physics) Chulalongkorn University, Thailand.
Ph.D.(Physics) Chulalongkorn University, Thailand.
Postdoctoral Fellow: Helmholtz-Center Berlin for Materials and Energy, Germany.
Research interests: Thin films, Hybrid and organic solar cells
Surface modification, Surface/interface characterization
website: http://nano-pv.sci.ku.ac.th
The main area Dr. Supasai`s research is “Nanostructured Materials”. In this experimental research Dr. Supasai`s group designs materials and structures useful for applications in optoelectronics and environment. A large effort of Dr. Supasai`s research focuses on photovoltaics, including organic-hybrid solar cell materials and device physics, inorganic materials like TiO2, ZnO, MoO3 etc., where the focus is to synthesize these materials via environmentally green chemical processes and to utilize them for the next generation of solar cell applications. Additionally, thin film research is mostly focused on the synthesis of the wide band gap materials via ion layer reaction (ILGAR), DC-RF sputtering, and resistive thermal evaporation and study of the structural, optical, and photo-induced charge generation and separation behaviors of these layers.

 

Selected Patent

1. A spray-nebulous chemical deposition system for thin film preparation, T. Supasai, N. Rujisamphan, V. Engkasorrarat,  Feb 2016, Thai petty patent no. 1603000281

Selected Publications

1.  Compact nanostructured TiO2 deposited by aerosol spreay pyrolysis for the hole-blocking layer in a CH3NH3PbI3 peovskite solar cell, T. Supasai, N. Henjongchom, I-M. Tang, F. Deng, N. Rujisamphan, , Solar Energy 2016, 136, 515-524.

2. Co-sputtered metal and polymer nanocomposite films and their electrical responses for gas sensing application, N. Rujisamphan, R.E. Murray, F. Deng, T. Supasai, Applied Surface Science 2016, 368, 114-121.

3. Photoinduced charge dissociation and transport at P3HT/ITO interfaces: studied by modulated surface spectroscopy, N. Rujisamphan, T. Supasai, Th. Dittrich, Applied Physics A 2016, 122: 77, DOI 10.1007/s00339-016-9614-9

4. Formation of a passivating CH3NH3PbI3/PbI2 interface during moderate heating CH3NH3PbI3 layers, T. Supasai,N. Rujisamphan, K. Ullrich, A. Chemseddine, Th. Dittrich, Applied Physics Letters, 2013, 103, 183906.

5. Influence of Temperature Annealing on Optical Properties of SrTiO3/BaTiO3 Multilayered Films on Indium Tin Oxide,T. Supasai, S. Dangtip, P. Learngarunsri, N. Boonyopakorn, A. Wisitsoraat, S.K. Hodak, Applied Surface Science 2010, 256, 4462-4467.

6. Design of Low Cost Gas Sensor Based on SrTiO3 and BaTiO3 Films, S. K. Hodak, T. Supasai, A. Wisitsoraat, H. Jose Hodak, Design of Low Cost Gas Sensor Based on SrTiO3 and BaTiO3 Films, Journal of Nanoscience and Nanotechnology 2010, 10 7236-7238.
introducing myself_1

Laboratory’s facilities include:

1. Ion Layer Gas Reaction (ILGAR) system
2. DC-RF sputtering system
3. Surface modification-Plasma cleaning
4. Resistive thermal evaporation system (Coming)
5. Surface Photovoltage (SPV) spectrometer
6. Quantum efficiency measurement (Coming)
7. Spin coaters (Laurell cop.)
8. Furnace-hot plates
9. Screen printer