High-speed printing of a bulk-heterojunction architecture in organic solar cells films

To facilitate the potential applications of organic solar cells (OSCs), the highly cost-effective processing fabrication of solar cells and modules is an important prerequisite. However, process development has received little attention and is rarely reported. Herein, we propose a polymeric self-dop...

Full description

Saved in:
Bibliographic Details
Published in:Energy & environmental science 2023-04, Vol.16 (4), p.1711-172
Main Authors: Zhao, Xinbi, Sun, Rui, Wu, Xiaohei, Zhang, Meimei, Gao, Yuan, Wan, Ji, Min, Jie
Format: Article
Language:English
Subjects:
Aggregation behavior
Blade coating
Commercialization
Doping
Economic analysis
Fabrication
Heterojunctions
High speed
Low molecular weights
Modules
Molecular weight
Photovoltaic cells
Photovoltaics
Solar cells
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:To facilitate the potential applications of organic solar cells (OSCs), the highly cost-effective processing fabrication of solar cells and modules is an important prerequisite. However, process development has received little attention and is rarely reported. Herein, we propose a polymeric self-doping strategy to fabricate high-performance bulk-heterojunction (BHJ)-type active layers with super-fast blade-coating speeds. We found that doping a small amount of PM6 with a relatively low molecular weight (namely PM6 L ) into the PM6:Y6 system can remarkably improve the high-speed processability of the active layer without sacrificing its photovoltaic performance, supported by relevant morphological and physical measurements. The in situ analysis further illustrates the effects of PM6 L -doping on the molecular aggregation behaviors during the film-forming process at low and high blade-coating speeds. The universality of this PM6 L -doping strategy was confirmed in three other PM6-based BHJ-type OSCs. Importantly, the high-speed manufacturing of large-scale solar modules and their techno-economic analysis further highlight the merits of this strategy, thus driving the commercialization of the OSC technique forward. A polymer self-doping strategy can improve the high-speed processability of the active layer without compromising performance to reduce minimum sustainable price, which guide the lab-to-fab of the high coating speed printing of organic solar cells.
ISSN:1754-5692
1754-5706
DOI:10.1039/d2ee03966d