顺序处理通过非卤代有机溶剂实现17%的全聚合物太阳能电池。

Zhao Chaoyue, Wang Lihong, Zhang Guoping, Wang Yajie, Hu Ruiyu, Huang Hui, Qiu Mingxia, Li Shunpu, Zhang Guangye

College of New Materials and New Energies, Shenzhen Technology University, Shenzhen 518118, China.

Molecules. 2022 Sep 5;27(17):5739. doi: 10.3390/molecules27175739.

All-polymer solar cells (All-PSCs), whose electron donor and acceptors are both polymeric materials, have attracted great research attention in the past few years. However, most all-PSC devices with top-of-the-line efficiencies are processed from chloroform. In this work, we apply the sequential processing (SqP) method to fabricate All-PSCs from an aromatic hydrocarbon solvent, toluene, and obtain efficiencies up to 17.0%. By conducting a series of characterizations on our films and devices, we demonstrate that the preparation of SqP devices using toluene can effectively reduce carrier recombination, enhance carrier mobility and promote the fill factor of the device.

全聚合物太阳能电池（All-PSC）的电子供体和受体均为聚合物材料，在过去几年中引起了广泛的研究关注。然而，大多数具有顶尖效率的全聚合物太阳能电池器件都是用氯仿加工而成的。在这项工作中，我们应用顺序处理（SqP）方法，从芳烃溶剂甲苯制备全聚合物太阳能电池，并获得了高达17.0%的效率。通过对我们的薄膜和器件进行一系列表征，我们证明使用甲苯制备顺序处理器件可以有效减少载流子复合，提高载流子迁移率并提升器件的填充因子。