Invited Speech:

Novel Thienoacene-Based Semiconducting Materials
for Organic Solar Cells

Man Shing Wong, Kai Zhang, Zhaoguang Li

Department of Chemistry, Institute of Advanced Materials, and Institute of Molecular Functional Materials†, Hong Kong Baptist University, Kowloon Tong, Hong Kong SAR, China

 

Prof. Ricky M.S. Wong Professor Department of Chemistry, Hong Kong Baptist University

 

Date: 13 Dec 2016 (Tue)
Time: 2:00 - 2:30pm
Venue: TY Wong Hall, 5/F, Ho Sin Hang Engineering Building, CUHK

 

Abstract:

Organic electronics and optoelectronics have developed rapidly in the past decades because of the numerous advantages of organic semiconductors for device applications, which include low cost, lightweight, ease of fabrication and feasibility for large-area flexible devices. Among various materials for organic electronics, thienoacene-based material represents one of the most promising classes from which some of them show robust and excellent device performance. As part of our ongoing effort on developing high-performing, air-stable semiconductors for organic electronics, we have recently developed novel series of air-stable, p-extended thienoacene-based semiconducting molecules with ability of self-assembling into ordered lamellar structure induced by introducing proper alkoxy side-chains resulting in high charge carrier mobilities up to 2.6 cm2 V‒1 s‒1 for organic field effect transistor (OFET) applications. In addition, such thienoacene-based semiconducting molecules have shown promising potential as useful electron-rich building blocks to construct donor-acceptor type polymeric materials for the bulk heterojunction (BHJ) organic solar cells as well as an efficient p-conjugated bridge to construct photosensitizers for dye sensitized solar cell (DSSC) applications. In this presentation, a comprehensive overview of our recent progress in developing thienoacene-based materials for solar energy harvesting applications will be discussed.

 

About speaker:

Ricky M. S. Wong is currently a Professor of the Chemistry Department at the Hong Kong Baptist University. He was the Head of the department in 2012-2015. He received his PhD degree from The University of Texas, Austin USA in 1992. He was a Marion-Merrell-Dow/Université Louis Pasteur Postdoctoral Research Fellow at Université Louis Pasteur, France. After postdoctoral research at Institute of Quantum Electronics, ETH-Zürich, Switzerland, he joined the Research School of Physical Sciences & Engineering, Australian National University as a research fellow and then moved to Hong Kong Baptist University in 1998 as an assistant professor. His research interests are mainly in the areas of functional molecular materials for organic electronics, multphoton excited imaging and sensing, and drug discovery for Alzhiemer’s disease.