Photo-cross-linked perylene diimide derivative materials as efficient electron transporting layers in inverted polymer solar cells,Nanoscale

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Photo-cross-linked perylene diimide derivative materials as efficient electron transporting layers in inverted polymer solar cells
Nanoscale ( IF 5.8 ) Pub Date : 2017-11-01 00:00:00 , DOI: 10.1039/c7nr06632e
Yong-Jin Noh _{1,

2,

3,

4} , Yu-Jin Choi _{2,

3,

4,

5,

6} , Ji-Ho Jeong _{1,

2,

3,

4} , Seok-Soon Kim _{4,

7,

8,

9} , Kwang-Un Jeong _{2,

3,

4,

5,

6} , Seok-In Na _{1,

2,

3,

4}

Affiliation

We present an efficient and stable interfacial material based on a water-soluble perylene diimide derivative functionalized with ionic and methacrylate groups (abbreviated as PDIM), which can be stabilized by the photo-polymerization of diacrylate groups at both ends of the side chain in the PDIM. The characteristics of the photo-cross-linked PDIM films were examined using absorption spectra, cyclic voltammetry, work function, and surface morphology. The feasibility of the photo-cross-linked PDIM films as a novel electron transporting layer (ETL) in polymer solar cells (PSCs) was also investigated. The PTB7-Th:PC₇₁BM-based PSC using the PDIM as the ETL achieved the excellent power conversion efficiency of 9.44% similar to the conventional polyethylenimine ethoxylated (PEIE) and better than ZnO. Furthermore, the PSC with the PDIM films exhibited a similar lifetime to that of the PEIE-based device. This approach suggests that the photo-cross-linked PDIM film could be regarded as a promising interfacial material for fabricating highly efficient PSCs.

中文翻译：

光交联的ylene二酰亚胺衍生物材料作为反向聚合物太阳能电池中的有效电子传输层

我们提出了一种基于离子化和甲基丙烯酸酯基团官能化的水溶性per二酰亚胺衍生物的高效，稳定的界面材料（缩写为PDIM），可以通过在侧链两端的二丙烯酸酯基团的光聚合来使其稳定。 PDIM。使用吸收光谱，循环伏安法，功函数和表面形态检查了光交联的PDIM膜的特性。还研究了光交联的PDIM膜作为聚合物太阳能电池（PSC）中新型电子传输层（ETL）的可行性。PTB7-Th：PC ₇₁使用PDIM作为ETL的基于BM的PSC达到了9.44％的出色功率转换效率，与传统的聚乙烯亚胺乙氧基化（PEIE）相似，并且优于ZnO。此外，带有PDIM膜的PSC的寿命与基于PEIE的器件的寿命相似。该方法表明，光交联的PDIM膜可以被认为是用于制造高效PSC的有前途的界面材料。

更新日期：2017-11-23

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