Aggregation of non-fullerene acceptors in organic solar cells

Organic solar cells (OSCs) employing non-fullerene acceptors (NFAs) have drawn significant research attention in recent years. Molecular stacking and aggregation of electron donors and acceptors within the photoactive layer is vitally important for light absorption and the photon-to-electricity conv...

Full description

Saved in:
Bibliographic Details
Published in:Journal of materials chemistry. A, Materials for energy and sustainability Materials for energy and sustainability, 2020-01, Vol.8 (31), p.1567-15619
Main Authors: Li, Donghui, Zhang, Xue, Liu, Dan, Wang, Tao
Format: Article
Language:English
Subjects:
Agglomeration
Electromagnetic absorption
Fullerenes
Optoelectronics
Organic chemistry
Photovoltaic cells
Photovoltaics
Solar cells
Stacking
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Organic solar cells (OSCs) employing non-fullerene acceptors (NFAs) have drawn significant research attention in recent years. Molecular stacking and aggregation of electron donors and acceptors within the photoactive layer is vitally important for light absorption and the photon-to-electricity conversion process. Herein, we present the versatile molecular stacking of the state-of-the-art NFAs, as well as the affecting factors including the chemical structures of NFAs and physical processing conditions. We highlight in particular experimental approaches to regulate molecular stacking and aggregation and summarize the influences of these features on optoelectronic and photovoltaic properties of NFA-based OSCs, which provide crucial guidance for further development of high performance OSCs. Various types of molecular stacking can form in NFAs, which influence light absorption and efficiency of organic solar cells.
ISSN:2050-7488
2050-7496
DOI:10.1039/d0ta03703f