报告人：Yimao Wan
报告题目：PASSIVATING SILICON PV: FROM SURFACE TO CONTACTS
报告时间：2018年1月19日上午9点
报告地点：能源与材料创新研究院附楼会议室102
报告人简介：
Dr Yimao Wan received the B.E. degree from the Nanyang Technological University, Singapore in 2004, and Ph.D. degree from the Australian National University (ANU) in 2014. He has six years industrial experience in semiconductor manufacturing between 2004 and 2010. He is currently a research fellow at the ANU co-leading with Prof Andres Cuevas the Silicon Surface and Contacts Passivation. During 2016 to 2017, he has been a visiting fellow at University of California, Berkeley under supervision of Prof Ali Javey. Since commencement of PhD, Dr Wan has published 60 journals and conference articles on silicon surface passivation and carrier-selective, passivated contacts. His research interests lie particularly on the following aspects: nanomaterials for surface passivation and carrier-selective contacts high-efficiency low-cost silicon solar cells and silicon/perovskite tandem solar cells nanomaterials and devices for photoelectrochemical applications.
报告简介：
For solar cells to work efficiently, it is essential to suppress the recombination between electrons and holes, both in the bulk and at the surfaces, and to create regions in the device that transport the two charge carriers towards two separate metallic electrodes. This talk will describe several approaches to implement such passivating technologies on silicon. Firstly, I will present the progress in developing novel surface passivating materials at ANU. Secondly, I will discuss self-passivating contacts formed by doped polysilicon films deposited onto thin, tunnelling dielectrics, and also dopant-free selective contacts based on materials having either a very low or very high work function. The latter include metal, metal fluorides and metal oxides. Recent research on deposited-junction silicon solar cells made with such materials will be overviewed.