Ø  Device physics of Organic Photovoltaics (OPV)

•           Contact physics: Ohmic contact transition, Soft Fermi pinning, electrochemistry and light induced Ohmic contact, contact selectivity, n-doped electron collection polymer

•           Device physics: doping assisted exciton separation, asymmetric doping for balanced carrier collection, low light edge effect

•           Morphology control

Ø  Device physics of Organic Electrochemical Transistors (OECT), novel Memristors and Sensors

•           My current research works include novel OECT device structure, OECT sensors (light, pressure, temperature, selective ion), artificial neuron, artificial synapse, integrated sensor and memristor systems

2020.8 – Present   Xi'an Jiaotong University, China   Assistant professor

2019.2 – 2020.5   National University of Singapore, Singapore     Research fellow 

2014.8 – 2019.4   National University of Singapore, Singapore    Ph.D.

2010.8 – 2014.6   Department of Physics, University of Science and Technology of China, Hefei, China      B.Sc.

Full publications list and Citation

https://scholar.google.com/citations?user=hred9JcAAAAJ&hl=en  

https://www.researchgate.net/profile/Chao-Zhao-46/publications 

Selected Publications

1.         C. Zhao, C. G Tang, Z. L. Seah, Q. M. Koh, L. L. Chua, R. Q. Png, P. K. H. Ho, Improving organic photovoltaic cells by forcing electrode work function well beyond onset of Ohmic transition, Nat. Commun., 2021, 12(1): 1-9

2.         C. Zhao, A. N. Utama, K. K. Choo, L. L. Chua, R. Q. Png^#, P. K. H. Ho, Bias‐Induced Electrochemical Electron Doping of Organic Semiconductor Contacts, Adv. Mater. Interfaces, 2019

3.         J. K. Tan, R. Q. Png, C. Zhao, P. K. H. Ho^#, Ohmic transition at contacts key to maximizing fill factor and performance of organic solar cells, Nat. Commun., 2018, 9(1): 1-8.

4.         W. Xue, Y. Tang, X. Zhou, Z. Tang, H. Zhao, T. Li, L. Zhang, S. (Frank) Liu, C. Zhao^#, W. Ma^#, H. Yan^#, Identifying the Electrostatic and Entropy-Related Mechanisms for Charge-Transfer Exciton Dissociation at Doped Organic Heterojunctions, Adv. Funct. Mater., 2021