A cyclometalating organic ligand with an Iridium center toward dramatically improved photovoltaic performance in organic solar cells.
A cyclometalating organic ligand with an Iridium center toward dramatically improved photovoltaic performance in organic solar cells.
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DOI：
10.1039/c9cc00173e
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发表时间：
2019-02
影响因子：
4.9
通讯作者：
Qingjing Wu;Yang Cheng;Zhongyuan Xue;Xuyu Gao;Menghan Wang;Wenbo Yuan;S. Huettner;Shigang Wan;Xudong Cao;Youtian Tao;Wei Huang
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文献类型：
--
作者：
Qingjing Wu;Yang Cheng;Zhongyuan Xue;Xuyu Gao;Menghan Wang;Wenbo Yuan;S. Huettner;Shigang Wan;Xudong Cao;Youtian Tao;Wei Huang
有机金属化合物作为光活性材料在有机太阳能电池中是相对较新的材料。环金属化后，与平面有机2-(5‘’-hexyl-[2，2‘：5’，2‘’-terthiophen]-5-yl)benzo[d]thiazole(Tbz)配体相比，八面体异构型Ir配合物TbzIr表现出显著的光吸收增强和薄膜形态的改善。因此，当与∼71BM相结合时，功率转换效率(PCE)从PC0显著提高到3.81%。
Organometallic compounds as photoactive materials are relatively new in organic solar cells. Upon cyclometalation, the octahedral heteroleptic Ir complex TBzIr exhibits significantly enhanced optical-absorption and improved film-morphology compared to the planar organic 2-(5''-hexyl-[2,2':5',2''-terthiophen]-5-yl)benzo[d]thiazole (TBz) ligand. Thus, a dramatically improved power conversion efficiency (PCE) from ∼0 to 3.81% is attained when combined with PC71BM.