【大師講壇】第256期:分子光伏與鈣鈦礦太陽能電池的驚人崛起
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、半導體量子點或鈣鈦礦色素作為光捕獲材料的光伏電池,已成為傳統器件的強勁競爭者。染料敏化太陽能電池通過三維納米結構結實現光電轉換,具備獨特的實用優勢:包括弱光環境高效發電、易于制造、柔性與透明度俱佳、雙面采光能力以及美學吸引力,這些特質促成了其工業化量產與商業應用。該技術更為鈣鈦礦太陽能電池的發展奠定基礎——后者作為最具前景的未來光伏技術之一,其溶液加工實驗室電池的功率轉換效率目前已達27%,現階段的重點研究在于確認其長期運行穩定性,并推進大型組件的試點量產。本次演講將涵蓋我們在這些革命性光伏領域的最新研究成果。
Michael Gr?tzel
中國科學院外籍院士