A fluorescent quenching performance enhancing principle for carbon nanodot-sensitized aqueous solar cells
Publication in refereed journal

香港中文大學研究人員
替代計量分析
.

其它資訊
摘要We report a fluorescent quenching principle capable of markedly enhancing the conversion efficiency of carbon nanodots (CNDs)-sensitized aqueous solar cells (CNDs-ASCs). A conversion efficiency of 0.529%, over 4-times of the best conversion efficiency reported for CNDs-sensitized solar cells, is achieved with a cell constructed using CNDs as the sensitizer and aqueous I-/I3- electrolyte serving a dual-function as the recombination blocker (fluorescent quencher) and redox mediator. The results confirm that the significantly enhanced utilization efficiency of the photo-excited electrons resulting from the efficiently quenched fluorescent emission of CNDs sensitizer by I- is responsible for the markedly improved conversion efficiency of CNDs-ASCs. The findings of this work validate a principle that could be widely applicable for enhancing the performance of solar cells employing other fluorescent quantum dots/nanodots sensitizers.
著者Zhang H., Wang Y., Liu P., Li Y., Yang H.G., An T., Wong P.-K., Wang D., Tang Z., Zhao H.
期刊名稱Nano Energy
出版年份2015
月份4
日期1
卷號13
出版社Elsevier BV
出版地Netherlands
頁次124 - 130
國際標準期刊號2211-2855
電子國際標準期刊號2211-3282
語言英式英語
關鍵詞Aqueous solar cells, Carbon nanodot sensitizer, Fluorescent quenching, Iodide quencher, Natural biomass

上次更新時間 2021-27-02 於 01:45