Current Research Interests
YAO Kui's research areas cover smart materials and their applications as sensors, actuators and transducers. The materials studied include ferroic, piezoelectric, dielectric, photovoltaic, chemical and bio sensing materials. He is interested in understanding and improving the structure and properties of these smart materials, and further exploring their signal/energy conversion and storage functional mechanisms including their applications. As the program manager, he is leading a research program focusing on material-critical sensors and transducers at Institute of Materials Research and Engineering in A*STAR. Working together with his colleagues and students, he has designed and demonstrated a variety of material-critical sensors, actuators, and transducers on the basis of the functional mechanisms of the smart materials. Processing of functional thin films, thick films, multilayers, and micro/nano fabrication processes are applied to produce devices.
YAO Kui received the bachelor degree in electronics engineering and the Ph.D in electronic materials and devices, both from Xi'an Jiaotong University, China, in 1989 and 1995, respectively, and the master degree in technical physics from Xidian University, China, in 1992. He joined Institute of Materials Research and Engineering (IMRE) in Singapore in 1997 as a research fellow. After several promotions, he is currently a principal scientist and a program manager in IMRE, A*STAR, and an adjunct professor in School of Material Science and Engineering (MSE), NTU. During 1998 - 1999, he worked in the Materials Research Laboratory (MRL), The Pennsylvania State University, USA. Previously, he was a postdoctoral fellow in Microelectronic Center, Nanyang Technological University (NTU), Singapore, during 1995-1997.
1. Lei Zhang, Kui Yao, Ehsan Keikha, Yi Fan Chen, Md. Arifur Rahman, Abdullah Al Mamun, and Charanjit Singh Bhatia, “Dual-stage nano-positioning scheme for 10 Tbit/in2 hard disk drives with a shear-mode piezoelectric single crystal micro-actuator,” IEEE Transactions on Magnetics, 51, 3300209, 2015.
2. Weng Heng Liew, Meysam Sharifzadeh Mirshekarloo, Shuting Chen, Kui Yao, and Francis Eng Hock Tay, “Nanoconfinement induced crystal orientation and large piezoelectric coefficient in vertically aligned P(VDF-TrFE) nanotube array,” Scientific Reports, 5, 9790, 2015.
3. Ying Jiang, Chin Yaw Tan, Sze Yu Tan, Miki Shi Fei Wong, Yi Fan Chen, Lei Zhang, and Kui Yao, Samuel Ken En Gan, Chandra Verma, and Yee-Joo Tan, “SAW sensor for Influenza A virus detection enabled with efficient surface functionalization,” Sensors & Actuators: B 209, pp. 78–84, 2015.
4. Szu Cheng Lai, Kui Yao, and Yi Fan Chen, “A battery-less photo-detector enabled with simultaneous ferroelectric sensing and energy harnessing mechanism,” Applied Physics Letters, 103, 092903, 2013.
5. Meysam Sharifzadeh Mirshekarloo, Kui Yao, and Thirumany Sritharan, “Ferroelastic strain induced antiferroelectric-ferroelectric phase transformation in multilayer thin film structures,” Advanced Functional Materials, 22, pp. 4159–4164, 2012.
6. Huajun Liu, Ping Yang, Kui Yao, Phuong Khuong Ong, Ping Wu and John Wang, “Origin of tetragonal BiFeO3 phase with giant c/a ratio on SrTiO3 substrates,” Advanced Functional Materials, 22, pp. 937–942, 2012.
7. Kui Yao, Shuting Chen, Mojtaba Rahimabady, Meysam Sharifzadeh Mirshekarloo, Shuhui Yu, Francis Eng Hock Tay, Thirumany Sritharan, and Li Lu, “Nonlinear dielectric thin films for high power electric storage with energy density comparable with electrochemical supercapacitors,” IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 58, pp. 1968-1974, 2011.
8. Saravanan Shanmugavel, Kui Yao, Trung Dung Luong, Sharon Roslyn Oh, Yifan Chen, Chin Yaw Tan, Ajit Gaunekar, Peter Hon Yu Ng, and Marchy Hing Leung Li, “Miniaturized acceleration sensors with in-plane polarized piezoelectric thin films produced by micromachining,” IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 58, pp. 2289-2296 and front cover page, 2011.
9. Yi Zheng, Guang-Xin Ni, Chee-Tat Toh, Chin-Yaw Tan, Kui Yao, and Barbaros Ozyilmaz, “Graphene field effect transistors with ferroelectric gating,” Physical Review Letters, 105, 166602, 2010.
10. Wei Ji, Kui Yao, and Yung Chii Liang, “Bulk photovoltaic effect at visible wavelength in epitaxial ferroelectric BiFeO3 thin films,” Advanced Materials, 22, pp. 1763–1766, 2010.