Molecularly Engineered Ru(II) Sensitizers Compatible with Cobalt(II/III) Redox Mediators for Dye-Sensitized Solar Cells
作者:Kuan-Lin Wu、Aron J. Huckaba、John N. Clifford、Ya-Wen Yang、Aswani Yella、Emilio Palomares、Michael Grätzel、Yun Chi、Mohammad Khaja Nazeeruddin
DOI:10.1021/acs.inorgchem.6b00427
日期:2016.8.1
Thiocyanate-free isoquinazolylpyrazolate Ru(II) complexes were synthesized and applied as sensitizers in dye-sensitized solar cells (DSCs). Unlike most other successful Ru sensitizers, Co-based electrolytes were used, and resulting record efficiency of 9.53% was obtained under simulated sunlight with an intensity of 100 mW cm–2. Specifically, dye 51-57dht.1 and an electrolyte based on Co(phen)3 led
合成了无硫氰酸盐的异喹唑基吡唑啉化物Ru(II)配合物,并将其用作染料敏化太阳能电池(DSC)中的敏化剂。与大多数其他成功的Ru敏化剂不同,使用了Co基电解质,在模拟的日光强度为100 mW cm –2的情况下,记录效率为9.53%。具体来说,染料51-57dht.1和基于Co(phen)3的电解质导致J SC的测量值为13.89 mA cm –2,V OC900 mV的FF和0.762的FF产生9.53%的效率。器件性能的改善是通过在异喹啉亚基上包含2-己基噻吩单元,以及延长吡唑酸酯螯合基团上的全氟烷基链来实现的,这在使用Co基电解质时起到了增加光吸收和降低重组效果的作用。如本研究所示,带有空间要求的配体的Ru(II)敏化剂可以成功地利用重要的Co电解质和高性能。