Personal Details

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Dr. LIEW Weng Heng

Scientist I


Polymer Composite (PMC) Department


2 Fusionopolis Way. Innovis, #08-03, Singapore 138634

Research Details

  • Functional materials, including ferroelectric and piezoelectric polymers and ceramics.
  • One-dimensional nanostructures
  • Ultrasonic transducers and imaging systems
  • Photo-acoustic


  • Synthesis of one-dimensional nanostructures via template-based method
  • Synthesis of self-ordered anodized alumina membrane
  • Synthesis of polymeric thin films via spin-coating, dip-coating and electrophoresis methods
  • Materials characterizations 
  • Acoustic and photo-acoustic imaging
  • 2016 – 2021     Surgical Photoacoustic Nanotechnology (SPAN) - Highly Sensitive Piezoelectric Ultrasonic Transducers

  • March 2018 –  Current     Scientist I (Institute of Materials Research and Engineering)
  • Sept 2016 –  March 2018     Specialist I (Institute of Materials Research and Engineering)
  • 2012 – 2017     Ph.D. (National University of Singapore)
  • 2008 – 2012     B.Eng. (Hons.) (National University of Singapore)
  1. W.H. Liew, M.S. Mirshekarloo, S. Chen, K. Yao & F.E.H. Tay, “Nanoconfinement induced crystal orientation and large piezoelectric coefficient in vertically aligned P(VDF-TrFE) nanotube array” Sci. Rep. 5, 9790 (2015).
  2. WH Liew, K Yao, S Chen, and FEH Tay, “Piezoelectric nanotube array for broadband high frequency ultrasonic transducer,” IEEE Trans. Ultrason. Ferroelectr. Freq. Contr. 65, 457-464 (2018).
  3. YM Abdelrahman, K Yao, S Chen, WH Liew, and S Ramakrishna, "Mechanisms for enhancing polarization orientation and piezoelectric parameters of PVDF nanofibers", Adv. Electron. Mater. 4, 1700562 (2018). 

A method to produce electromechanical polymer multilayer structures and the resulting devices

High frequency ultrasonic transducer using one-dimensional piezoelectric nanostructures

Last updated on : 17 Dec 2018 11:26 AM