Photovoltaic cells using molecular dyes, semiconductor quantum dots or perovskite pigments as light harvesters have emerged as credible contenders to conventional devices. Dye sensitized solar cells use a three-dimensional nanostructured junction for photovoltaic electricity production. They possess unique practical advantages in particular highly effective electricity production from ambient light, ease of manufacturing, flexibility and transparency, bifacial light harvesting, and aesthetic appeal, which have enabled industrial mass production and commercial applications. They served as a launch pad for perovskite solar cells which are presently being intensively investigated as one of the most promising future PV technologies, the power conversion efficiency of solution processed laboratory cells having currently reached 27 %. Present research focusses on ascertaining their long-term operational stability and scale up to pilot production of large modules. My lecture will cover our most recent findings in these revolutionary photovoltaic domains.
采用分子染料、半导体量子点或钙钛矿色素作为光捕获材料的光伏电池，已成为传统器件的强劲竞争者。染料敏化太阳能电池通过三维纳米结构结实现光电转换，具备独特的实用优势：包括弱光环境高效发电、易于制造、柔性与透明度俱佳、双面采光能力以及美学吸引力，这些特质促成了其工业化量产与商业应用。该技术更为钙钛矿太阳能电池的发展奠定基础——后者作为最具前景的未来光伏技术之一，其溶液加工实验室电池的功率转换效率目前已达27%，现阶段的重点研究在于确认其长期运行稳定性，并推进大型组件的试点量产。本次演讲将涵盖我们在这些革命性光伏领域的最新研究成果。
嘉宾介绍
Michael Grätzel
中国科学院外籍院士Michael Grätzel，瑞士洛桑联邦理工学院（EPFL）教授，被誉为“染料敏化太阳能电池之父”。他发明了染料敏化太阳能电池（被称为“Grätzel电池”），其开创性的工作奠定了介观系统中能量和电荷转移反应研究及其在能量转换系统中应用的基础。这项工作直接推动了钙钛矿太阳能电池的诞生与迅猛发展，该技术在短短十余年间实现了超过27%的效率突破。他同时在太阳燃料创新研究方面贡献卓著。迄今已在Nature、Science等顶级期刊发表论文2000余篇，总被引超51万次，单篇最高引超3.7万次，h指数高达312（Google Scholar）。近期，斯坦福大学主导的一项科学家排名将Grätzel教授列为各领域10万名顶级科学家中的第1名。Grätzel教授荣获包括欧洲千禧年创新奖、英国皇家化学会法拉第奖章、和爱因斯坦世界科学奖等在内的30余项国际知名奖项。