【大师讲坛】第256期:分子光伏与钙钛矿太阳能电池的惊人崛起
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。
Michael Grätzel
中国科学院外籍院士