Journal Article

High-speed sequential deposition of photoactive layers for organic solar cell manufacturing

Wang, Yang, Li, Yongfang, Wu, Yao, Yang, Xinrong, Min, Jie, Brabec, Christoph J., Wang, Tao, Sun, Rui, Zhang, Maojie, Wu, Qiang

2022

نظرة عامة

Despite the great success of organic photovoltaics in terms of device efficiency and stability at the laboratory scale, pressing demand for high-throughput and cost-effective solutions remains unresolved and rarely reported. Here we propose that a sequential-deposition, blade-coating approach using donor and acceptor materials can facilitate high-speed fabrication of photoactive layers while maintaining device performance. The sequential-deposition-processed blend and thickness of its designed PM6:T8 system can be optimized by the fine-tuning of the solution concentrations and coating speeds. We show that this strategy can be applied to a non-halogenated solvent and under high-humidity conditions. This high-speed approach is applicable to other non-fullerene photovoltaic systems and the slot-die coating technique. Techno-economic analysis suggests that this strategy can decrease the minimum sustainable price of module manufacturing. Overall, this work represents a step towards the scalable, cost-effective manufacturing of organic photovoltaics with both high performance and high throughput. High-speed deposition of organic solar cells is crucial to manufacturing, yet it remains a challenge. Now, Sun et al. show that layer-by-layer deposition holds potential for speeding up the fabrication of solar cells while retaining high efficiency.

• الناشر: Nature Publishing Group UK,Nature Publishing Group
• موضوع: 639/4077/909/4101/4096/946 / 639/638/675 / Acceptor materials / Blade coating / Coatings / Deposition / Economic analysis / Economics and Management / Energy / Energy Policy / Energy Storage / Energy Systems / Fabrication / Fullerenes / High speed / Manufacturing / Photovoltaic cells / Photovoltaics / Renewable and Green Energy / Slot dies / Solar cells