Overview

Prof. Han is currently working on novel material design and fabrication process for high temperature structural and functional applications, including ceramic composites, environmental barrier coatings, electronic ceramic films, perovskites, solar cells.

Work/Research Experiences

2018-current: School of Materials Science and Engineering, Shandong University, China

2015-2018: Senior Research Fellow, Nanyang Technological University, Singapore

2013-2014: Postdoctoral Researcher, Friedrich-Alexander-University Erlangen-Nürnberg, Germany

2012-2013: Research Professor, Korea University, South Korea

2009-2011: Postdoctoral Researcher, Korea Institute of Materials Science (KIMS), South Korea

Research Interests

1. High Temperature Structural Materials: Ceramic Matrix Composites (CMC); Environmental Barrier Coatings (EBC); devices used in harsh environment

2. Novel Energy Related Materials and Devices: Perovskite Photovoltaics; 2D nanosheets

3. Electronic Ceramics: Piezoelectrics; Dielectrics; Conductive oxide; Oxide Perovskites; Thermoelectric

Research Projects

1.National Science Foundation of China, Aerosol deposition mechanism of bonding layer in environmental barrier coatings for elevated temperature application and its performance evolution, 2020-2022;

2. The Fundamental Research Funds of Shandong University, 2019-2021

Awards

Selected Publications and Patents

1. Guifang Han, Sam Zhang, Pablo P. Boix et al. Towards high efficiency thin film solar cells, Progress in Materials Science, 87, 246-291, 2017.

2. Guifang Han, T.M. Koh, S.S. Lim et al. Facile method to reduce surface defects and trap densities in perovskite photovoltaics, ACS Applied Materials & Interfaces, 9 (25), 21292-21297, 2017.

3. J. Fu, Q. Xu, Guifang Han, et al. Hot Carrier Cooling Mechanisms in Halide Perovskites, Nature Communications. 2017, 8, 1300.

4. Guifang Han, Harri Dharma Hadi, Annalisa Bruno et al. Additive selection strategy for high performance perovskite photovoltaics, The Journal of Physical Chemistry C, 122(25), 13884-13893, 2018.

5. Guifang Han, Wen Han Du, Bao-Li An et al. Nitrogen doped amorphous cuprous oxide as low cost hole-transporting material for perovskite solar cells, Scripta Materialia, 153, 104-108, 2018.

6. I Zarazua, Guifang Han, P. P. Boix, et al. Surface recombination and collection efficiency in perovskite solar cells from impedance analysis, Journal of Physical Chemistry Letters, 7, 5105-5113, 2016.

7. Guifang Han, Y. Liu, L. Zhang, L. Cheng. Fabrication and Characteristic of Non-oxide Fiber Tow Reinforced Silicon Nitride Matrix Composites by low temperature CVI Process, Ceramics International, 40, 8435-38, 2014.

8. Guifang Han, J. Ryu, C.-W. Ahn, et al. High Piezoelectric Properties of KNN-based Thick Films with Abnormal Grain Growth, Journal of the American Ceramic Society, 95(5), 1489-1492, 2012.

9. Guifang Han, C.-W. Ahn, J. Ryu, et al. Stress-controlled PZT Thick Films by Thermal Expansion Mismatch between Substrate and PZT Film, Journal of Applied Physics, 110, 124101, 2011.

10. Guifang Han, J. Ryu, W.-H. Yoon, et al. Effect of Film Thickness on the Piezoelectric Properties of PZT Thick Films Fabricated by Aerosol Deposition, Journal of the American Ceramic Society, 94(5), 1509-13, 2011.

Others