Invited Speaker, Track3: Sensor Device Architectures and Smart Systems

Pooi See LEE

Nanyang Technological University, Singapore
Presenter Bio

Prof. Lee received her Ph.D. degree from National University of Singapore in 2002. She joined Chartered Semiconductor Manufacturing Ltd (now Globalfoundries) in research and technology development department from 2002-2003. She is a recipient of the 2001 Norman Hackerman Young Author award presented by the Electrochemical Society, USA. In January 2004, she joined the School of Materials Science and Engineering, Nanyang Technological University as an Assistant Professor. She was promoted to tenured Associate Professor in 2009. In Sept 2015, she was promoted to Full Professor.

Pooi See has authored and co-authored many publications in the field of nanomaterials for energy and electronics applications. She holds more than 30 patents filed/provisional applications at present. She served as the Sub-Dean/Asst. Chair (undergraduate) in MSE from July 2004-2008, Associate Chair (Research) in June 2012-2014, and Associate Chair (Faculty) in March 2014. She was awarded the National Day Awards, Public Administration Medal (Bronze) in 2014. Pooi See is a recipient of the prestigious NRF Investigatorship, Class 2015. From 2016 to 2019, she served as the Associate Dean in College of Engineering. She is appointed as the Dean of Graduate College in 2020.

Pooi See is a member of Materials Research Society and she serves as the editorial board member of Advanced Energy Materials, Account of Materials Research, Advanced Intelligent Systems, Batteries & Supercaps, NPG Asia Materials, PLOS One, Scientific Reports and Frontier. She is the Senior Editor of ACS Energy Letters and Associate Editor of STAM. She is interested in synthesizing innovative nanomaterials, and harnessing its multi-functionality through understanding the structural-property characteristics. She has developed high energy capacitors, energy saving electrochromic coatings, novel transparent conductors, flexible and stretchable devices. She is keen in advancing the frontier of green nanotechnology and to translate research outcomes into real solutions. She is elected as the National Academy of Inventors (NAI) Fellow in 2020, the highest professional distinction accorded solely to academic inventors.

Abstract: Printable Tactile Sensors for Soft Electronics and Soft Robotics
Tactile sensors are widely used in the field of soft electronics and soft robotics. Fabrication of the tactile sensors using two-dimensional (2D) or three-dimensional printing (3D) is becoming attractive due to the ability to prepare complex structures through computer aided designs and multimaterial co-deposition. In this talk, I will discuss our research progress on piezoresistive, capacitive, piezoelectric and triboelectric based tactile sensors and their fabrication using inkjet printing or 3D printing methods. We have used transfer printing to prepare piezoresistive tactile strain sensors based on crumpled graphene and nanocellulose, the strain sensors can be integrated into smart gloves which are applicable for rehabilitation. In addition, piezoelectric tactile sensor has been fabricated through the uniquely designed kirigami pattern with 3D printed piezoelectric composites made of barium titanate and polyvinylidene trifluroethylene using direct ink writing. The resultant kirigami pattern endows stretchability of the non-stretchable composite material, and simultaneously achieves planarity by avoiding out-of-plane protrusions during stretching. The characteristic has enabled the pressing or compression mode of the kirigami piezoelectric gait sensor. For the triboelectric tactile sensors, we utilize an extremely stretchable self-healable polyurethane acrylate-based material to fabricate the triboelectric nanogenerator for sensing. The triboelectric active layer and the electrodes are fully 3D printable. In approaching transparent capacitive tactile sensing, we develop inkjet printable gels that enable additive manufacturing of touch sensing arrays and realize sensing of various gestures when the sensor arrays are subjected to dynamic stretching.

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