题目：Synthesis and characterizations of low band gap polymers for polymer solar cells
报告人：Assistant Professor Ergang Wang, Chalmers
主持人：侯林涛 副教授
时间：
地 点：蒙民伟理工楼305学术报告厅
Abstract:
Polymer solar cells (PSCs) are promising sustainable solar energy converters, which are attracting more and more attention because of their unique advantages of low cost, light weight, and potential use in flexible devices. To further improve the efficiencies of PSCs for practical applications, it is necessary to develop new conjugated polymers with several merits including low band gap, appropriate HOMO and LUMO positions, high mobility, decent solubility. A facial method to design polymers with these merits is to combine electron-rich (donor) and electron-deficient (acceptor) groups as repeating units, forming internal donor-acceptor (D-A) structures. In this talk, the work principle of PSCs and the progress in synthesis of low band gap polymers in our lab will be presented.
Biography:
Ergang Wang received his PhD degree (Materials Science) in 2008 from South China University of Technology under the supervision of Prof. Yong Cao. After that he joined Prof. Mats Andersson’s group as a postdoc. He was awarded Young Scientist Project from Swedish Research Council in Nov. 2011. He was appointed as an Assistant Professor at Chalmers from Jan. 2012. At present his main focus is on synthesis of new conjugated polymers/small molecules for polymer solar cells. As the first author, he has published more than 10 high quality journal papers including J. Am. Chem. Soc., Adv. Mater., Org. Lett., Nano. Lett., Macromolecules, J. Mater. Chem., Appl. Phys. Lett., Chem. Commun., J. Polym. Sci., Part A: Polym. Chem., Sol. Energy Mater. Sol. Cells (IF>3), which were cited for more than 500 times in recent five years. He was invited to be referee by many journals such as J. Am. Chem. Soc., Org. Lett., Adv. Mater., Adv. Energy Mater., J. Phys. Chem. C., Polymer Chemistry, J. Mater. Chem., Org. Electron..