Influence of thermal annealing on the charge generation and transport in PM6-based non-fullerene solar cells

被引：0

作者：

Rong Hu

Yurong Liu

Liangliang Tian

Wei Zhang

Xiaochuan He

机构：

[1] Chongqing University of Arts and Sciences,School of Materials Science and Engineering

[2] Guangzhou University,School of Physics and Electronic Engineering

[3] Sichuan University,College of Materials Science and Engineering

[4] Songshan Lake Materials Laboratory,undefined

来源：

Journal of Materials Science: Materials in Electronics | 2021年 / 32卷

关键词：

D O I：

暂无

中图分类号：

学科分类号：

摘要：

To study the influence of thermal annealing on the charge generation and transport in PM6-based non-fullerene solar cells. Morphology, optical and electrochemical properties of active layers as well as electrical properties of polymer solar cells were studied. Furthermore, the photoelectric conversion processes of annealed and unannealed devices were also examined by means of time resolved spectroscopy. The results showed that thermal annealing had a weak influence on the dynamics of exciton states. Besides, annealed device is found to suppress bimolecular recombination owing to its higher charge carrier mobility in ordered donor and acceptor aggregation phases, which led to higher photocurrent and power conversion efficiency than unannealed photovoltaic device.

引用

页码：22879 / 22889

页数：10

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