An oxygen heterocycle-fused fluorene based non-fullerene acceptor for high efficiency organic solar cells,Materials Chemistry Frontiers

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An oxygen heterocycle-fused fluorene based non-fullerene acceptor for high efficiency organic solar cells
Materials Chemistry Frontiers ( IF 6.0 ) Pub Date : 2020-06-16 , DOI: 10.1039/d0qm00287a
Xin Ke _{1,

2,

3,

4,

5} , Lingxian Meng _{1,

2,

3,

4,

5} , Xiangjian Wan _{1,

2,

3,

4,

5} , Yanna Sun _{1,

2,

3,

4,

5} , Ziqi Guo _{1,

2,

3,

4,

5} , Simin Wu _{1,

2,

3,

4,

5} , Hongtao Zhang _{1,

2,

3,

4,

5} , Chenxi Li _{1,

2,

3,

4,

5} , Yongsheng Chen _{1,

2,

3,

4,

5}

Affiliation

A new acceptor–donor–acceptor (A–D–A) small molecule acceptor, named FCO-2F, is designed and synthesized based on the previous acceptor F-H. By inserting an oxygen atom into the backbone of F-H and fluorination on the end group, FCO-2F shows a much red-shifted absorption compared with F-H, and also a wider absorption up to 830 nm. Using polymer PM6 as the donor, the organic solar cell (OSC) devices based on FCO-2F offer a power conversion efficiency (PCE) of 13.36%, with a much improved short circuit current (J_sc) of 20.90 mA cm⁻².

中文翻译：

用于高效有机太阳能电池的氧杂环稠合芴基非富勒烯受体

在以前的受体FH的基础上设计并合成了一种新的受体-供体-受体（A–D–A）小分子受体，称为FCO-2F。通过在FH的主链中插入一个氧原子并在端基上进行氟化，与FH相比，FCO-2F表现出红移得多的吸收，在830 nm处也有更宽的吸收。使用聚合物PM6作为施主，基于FCO-2F的有机太阳能电池（OSC）器件的功率转换效率（PCE）为13.36％，短路电流（J _sc）大大提高了20.90 mA cm ^-2。

更新日期：2020-06-29

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