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第15期 武汉光电青年论坛:用于下一次工业革命的薄晶硅光伏技术

来源:武汉光电国家研究中心    作者:    发布时间:2018年09月21日

时     间:2018年92510:00-11:30

地     点:光电国家研究中心A101

报 告 人:严文生德国卡尔斯鲁厄理工学院高级研究员

邀 请 人:甘棕松  教授


报告题目(Title)

用于下一次工业革命的薄晶硅光伏技术

Thin crystalline silicon photovoltaics for next industrial revolution   

报告摘要(Biography):

       The crystalline silicon (c-Si) solar cells have dominated the global photovoltaics (PV) market of more than 90% share. At present, world-record c-Si solar cell efficiency is already up to 26.7%, which is approaching the practical Shockley-Queisser (S-Q) efficiency limit of 29.4%. For commercial 180 μm-thick Si solar cells, there are several key drawbacks preventing from maximizing industrial application potentials: For instance, (i) the Si material alone occupies as high as approximately 40% of module cost; (ii) The c-Si PV module is very heavy, which greatly constrains its roof application range; (iii) The present thick c-Si cannot be integrated on flexible substrates (like thin film solar cells). Thin- and ultrathin c-Si solar cells present an innovative technology for next PV industry revolution. In this talk, I will review Si solar cells first and then present our research progresses on thin-and ultrathin c-Si solar cells presenting the highest conversion efficiency in the research area. Finally, I will briefly introduce the opportunities of direct laser writing method in ultrahigh efficiency solar cell research area.

       
       晶体硅(c-Si)太阳能电池占据全球光伏(PV)市场的90%以上的份额。目前,世界纪录的c-Si太阳能电池的效率已达到26.7%,接近值为29.4%的肖克利-奎伊瑟(S-Q)效率极限。然而对于商用的180 μm厚的Si太阳能电池,其存在的几个关键性缺陷,阻碍了其在工业应用发挥其最大性能潜力。例如,(i)仅Si材料就占模块成本的40%左右; (ii)c-Si PV模块比较重,这极大地限制了其在屋顶上的应用; (iii)这样厚度的c-Si不能集成在柔性基板(如薄膜太阳能电池板)上。因此,薄和超薄c-Si太阳能电池是下一代光伏产业革命的创新型技术。在本次报告中,我将先回顾硅太阳能电池的历史,然后展示我们在薄和超薄c-Si太阳能电池上的研究进展,这些太阳能电池在这个研究领域具有最高的转换效率。最后,我将简要介绍激光直接写入方法在超高效太阳能电池研究领域的发展前景。



报告人简介 (Biography)        

     严文生博士于2008年获得南京大学物理系微电子专业博士学位。从2009年至今,他一直在新加坡,澳大利亚和德国从事硅太阳能电池研究。他以项目负责人的身份获得了几项海外研究经费。2015年到2017年任德国研究基金会(DFG)的项目负责人,现任德国研究基金会(DFG)的独立PI.他曾在多个国际会议中担任会议分会主席,并任30多个学术期刊的审稿人。到目前为止,严文生博士已经获得了若干的国内和国际奖项,包括南京大学优秀博士学位论文;江苏省优秀博士学位论文;全国优秀博士学位论文(提名);重庆市(省级)巴渝学者特聘教授;澳大利亚可再生能源机构博士后奖学金; IAAM科学家奖章;德国为经验丰富的研究人员(高级研究员)设立的洪堡研究奖学金。此外,严文生博士曾在海外创建并经营了一家光伏创业公司


       Wensheng Yan received his PhD degree from the Major of Microelectronics, the Physics Department of Nanjing University in 2008. Since 2009 to the present, he has worked on silicon solar cells across Singapore, Australia, and Germany. As first PI, he has independently undertaken a couple of overseas funding. In Germany, he was a group leader from 2015 to 2017 and now is in a German Research Foundation (DFG) PI position. He was acting session chairs in several international conferences and regular reviewers for above 30 academic journals. So far, Wensheng Yan has won quite a couple of domestic and international awards including outstanding doctor degree dissertation of Nanjing University, China; Outstanding doctor degree dissertation, Jiangsu province, China; National outstanding doctor degree dissertation (Nomination), China; Bayu scholar distinguished professor of Chongqing city (Provincial level), China; Australian Renewable Energy Agency Postdoctoral Fellowship, Australia; IAAM Scientist Medal; and Humboldt Research Fellowship for Experienced Researchers (Senior fellow), Germany. In parallel, Wensheng Yan has the experience in establishing and running overseas start-up PV company.