当前位置：
X-MOL 学术
›
J. Mater. Chem. A
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Chemical reaction between an ITIC electron acceptor and an amine-containing interfacial layer in non-fullerene solar cells†
Journal of Materials Chemistry A ( IF 10.7 ) Pub Date : 2018-01-08 00:00:00 , DOI: 10.1039/c7ta10306a Lin Hu 1, 2, 3, 4, 5 , Yun Liu 1, 2, 3, 4, 5 , Lin Mao 1, 2, 3, 4, 5 , Sixing Xiong 1, 2, 3, 4, 5 , Lulu Sun 1, 2, 3, 4, 5 , Nan Zhao 1, 2, 3, 4, 5 , Fei Qin 1, 2, 3, 4, 5 , Youyu Jiang 1, 2, 3, 4, 5 , Yinhua Zhou 1, 2, 3, 4, 5
Journal of Materials Chemistry A ( IF 10.7 ) Pub Date : 2018-01-08 00:00:00 , DOI: 10.1039/c7ta10306a Lin Hu 1, 2, 3, 4, 5 , Yun Liu 1, 2, 3, 4, 5 , Lin Mao 1, 2, 3, 4, 5 , Sixing Xiong 1, 2, 3, 4, 5 , Lulu Sun 1, 2, 3, 4, 5 , Nan Zhao 1, 2, 3, 4, 5 , Fei Qin 1, 2, 3, 4, 5 , Youyu Jiang 1, 2, 3, 4, 5 , Yinhua Zhou 1, 2, 3, 4, 5
Affiliation
|
The development of non-fullerene acceptors keeps pushing forward the efficiency record of organic solar cells and resulting in new solar cell physics and chemistry to research. ITIC-based materials are an important type of non-fullerene acceptors. Herein, we report a new finding that the ITIC acceptor can react with the widely used low work-function interfacial layer polyethylenimine (PEI or PEIE) in non-fullerene organic solar cells. The amine interfacial material reacts as a nucleophile with the C![[double bond, length as m-dash]](https://www.rsc.org/images/entities/char_e001.gif)
O moiety of the ITIC, that destroys the original electronic structure and the intramolecular charge transfer of the ITIC molecules. Inverted non-fullerene solar cells with a PBDB-T:ITIC active layer deposited on PEI or PEIE display much lower PCE values compared with those of reference cells with the active layers deposited on ZnO electron-collecting interlayers. This chemical reaction between the ITIC acceptor and PEI or PEIE becomes more severe under thermal annealing and further deteriorates the solar cell performance. This original finding pays important attention to the design and development of the interfaces required for efficient non-fullerene organic solar cells.
中文翻译：
非富勒烯太阳能电池中ITIC电子受体与含胺界面层之间的化学反应†
非富勒烯受体的发展不断推动有机太阳能电池的效率记录，并为太阳能电池的物理和化学研究提供了新的方法。基于ITIC的材料是非富勒烯受体的一种重要类型。在此，我们报告了一个新发现，即ITIC受体可以与非富勒烯有机太阳能电池中广泛使用的低功函数界面层聚乙烯亚胺（PEI或PEIE）反应。胺界面材料作为亲核试剂与C反应ITIC的O部分，破坏ITIC分子的原始电子结构和分子内电荷转移。与在ZnO电子收集中间层上沉积有源层的参比电池相比，在PEI或PEIE上沉积有PBDB-T：ITIC有源层的倒型非富勒烯太阳能电池显示出低得多的PCE值。在热退火下，ITIC受体与PEI或PEIE之间的这种化学反应变得更加严重，并进一步使太阳能电池的性能下降。这个原始发现非常重视高效非富勒烯有机太阳能电池所需界面的设计和开发。
更新日期：2018-01-08
O moiety of the ITIC, that destroys the original electronic structure and the intramolecular charge transfer of the ITIC molecules. Inverted non-fullerene solar cells with a PBDB-T:ITIC active layer deposited on PEI or PEIE display much lower PCE values compared with those of reference cells with the active layers deposited on ZnO electron-collecting interlayers. This chemical reaction between the ITIC acceptor and PEI or PEIE becomes more severe under thermal annealing and further deteriorates the solar cell performance. This original finding pays important attention to the design and development of the interfaces required for efficient non-fullerene organic solar cells.
中文翻译：
非富勒烯太阳能电池中ITIC电子受体与含胺界面层之间的化学反应†
非富勒烯受体的发展不断推动有机太阳能电池的效率记录，并为太阳能电池的物理和化学研究提供了新的方法。基于ITIC的材料是非富勒烯受体的一种重要类型。在此，我们报告了一个新发现，即ITIC受体可以与非富勒烯有机太阳能电池中广泛使用的低功函数界面层聚乙烯亚胺（PEI或PEIE）反应。胺界面材料作为亲核试剂与C反应
ITIC的O部分，破坏ITIC分子的原始电子结构和分子内电荷转移。与在ZnO电子收集中间层上沉积有源层的参比电池相比，在PEI或PEIE上沉积有PBDB-T：ITIC有源层的倒型非富勒烯太阳能电池显示出低得多的PCE值。在热退火下，ITIC受体与PEI或PEIE之间的这种化学反应变得更加严重，并进一步使太阳能电池的性能下降。这个原始发现非常重视高效非富勒烯有机太阳能电池所需界面的设计和开发。
京公网安备 11010802027423号