Dr. Qi An, Associate Professor, School of materials science and engineering, China University of Geoscience (Beijing), Xueyuan Road 29, Haidian District, Beijing 100083, China

Biography: Dr. Qi An joined the faculty of School of Materials Sciences and Technology in China University of Geosciences (Beijing) in 2012. Prior to that, she completed her postdoctoral training with Professor Jurriaan Huskens and Professor Pascal Jonkheijm in MESA+ Institute of Nanotechnology in the University of Twente, the Netherlands. She received her Ph. D. at Tsinghua University in 2010. She had over 50 peer-reviewed publications. Her research interests focused on energy conversion devices, soft material and biocompatible materials.

Speech Title: An all solid flexible energy conversion and storage film for SERS signal up-regulations.
Abstract: Energy conversion and storage flexible device has gained increasing research interest in materials sciences because it tackles with the important energy issue and potentially leads to simpler and more efficient life styles. However, there remains a challenge to systematically design an applicable device which highlights the unique merits of the flexible energy conversion and storage film. In order to address the challenge, we have designed and prepared an all solid flexible polymeric composite that simultaneous generate and store energy. The film was prepared using a piezoelectric PVDF-HFP as the matrices and chemically converted rGO as the fillers. In addition, to fully realize the special merits and application potential of the flexible energy conversion film, we have demonstrated a concept for using the converted and stored energy in a flexible piezoelectric-dielectric film to up-regulate SERS signals. The signal up-regulation is as high as 10 times and is realized by a startling simple polymeric substrate that is only the size of a pH testing paper (40×20×3 mm3).
Keywords: Piezoelectric; rGO; energy conversion; energy storage; SERS.