Boosting the performance of ternary solar cells by fine-tuning the distribution of the third component
Year: 2025
Type: article
Abstract: Ternary organic solar cells (T-OSCs) utilizing energy transfer can enhance light absorption efficiency, thereby significantly improving power conversion efficiency (PCE). However, the uncontrollable distribution of the third component results in low energy transfer efficiency ( E FRET ). To address this, we proposed a localized deposition strategy for establishing a bulk heterojunction with a controlled distribution of the third component, denote as CD-HJ, wherein the energy donor is embedded within the energy acceptor phase. Meanwhile, for the very first time, we have combined experimental characterization with simulation and image processing to achieve a groundbreaking quantitative analysis of the third component distribution. Taking for PM6:PY-DT:IBC-F blend for instance, the device based on CD-HJ structure increases the proportion of IBC-F within the PM6 phase from 28.1 % to 80.6 % compared to the device based on BHJ. The optimized distribution of IBC-F boosted the E FRET from 38.26 % to 66.52 %. Consequently, the device based on CD-HJ structure achieved a PCE of 18.69 %.
Source: Chemical Engineering Journal
Authors: Yan Zhang, Jing Peng, Zemin He, Yutong Zhang, Xingpeng Liu, Zhenhui Xu, Chunpeng Song, Xipeng Yin, Junzheng Yan, Qiuju Liang, Jiangang Liu
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $4,830
Funders: National Natural Science Foundation of China, China Postdoctoral Science Foundation, Aeronautical Science Foundation of China, Fundamental Research Funds for the Central Universities, Natural Science Basic Research Program of Shaanxi Province, Basic and Applied Basic Research Foundation of Guangdong Province
OpenAlex ID: W4409452018