Lowering Toxicity of Solvent in Organic Solar Cells Manufacturing for 20% Efficiency
Thin film organic photovoltaics (OPVs) aim to harness solar energy environmentally friendly, highly efficient, and cost-effective means, thereby offering a sustainable solution for energy production and ecological preservation. Efforts are undertook to optimize engineering preparation technology for OPV devices and mini-modules, through the development of low-ecological-impact solvent processing method. A newly developed solvent engineering strategy employing environmentally benign o-xylene (OXY) with synergistic dual additives (DIM and DIB) achieved an optimal power conversion efficiency (PCE) of 20.0% (J<sub>SC</sub> of 26.6 mA cm<sup>-2</sup>, V<sub>OC</sub> of 0.935 V, FF of 80.3%) alongside exceptional stability metrics (82%-1500h). The mini-module processed with optimized TCE:OXY (1:3 v/v) solvent demonstrated scalable performance reaching 17.6% (18.4 cm<sup>2</sup>), representing the highest performance achieved in the development safe solvent based OPVs. Suitable microscale patterns contributed to a broader range of receiving angles, enabling more flexible installation geometries for building-integrated applications.
Authors
- Senke Tan (ORCID: https://orcid.org/0000-0001-5379-7955)
- Bonan Hao (ORCID: https://orcid.org/0000-0001-7759-188X)
- Jinge Zhu
- Zichun Zhou (ORCID: https://orcid.org/0000-0002-8203-7354)
- Zheng Tang (ORCID: https://orcid.org/0000-0003-0036-2362)
- Lin Yi (ORCID: https://orcid.org/0000-0002-7975-1901)
- Lei Zhu (ORCID: https://orcid.org/0000-0003-3971-0299)
- Lixuan Kan
- Zachary Fink (ORCID: https://orcid.org/0000-0002-8289-3185)
- Wenkai Zhong (ORCID: https://orcid.org/0000-0001-8333-4898)
- Xingyu Gao (ORCID: https://orcid.org/0000-0003-1477-0092)
- Jiawei Deng (ORCID: https://orcid.org/0009-0003-6683-5043)
- Feng Liu (ORCID: https://orcid.org/0000-0002-5572-8512)
- Ming Zhang (ORCID: https://orcid.org/0000-0002-0630-8693)
- Xuefei Wu
- Cheng Wang (ORCID: https://orcid.org/0000-0003-1127-5563)
- Shengjie Xu (ORCID: https://orcid.org/0009-0006-2834-4771)
- Wutong Zhao
- Xiaonan Xue
- Guanqing Zhou
- Yongming Zhang
- Thomas P. Russell
- Rui Zeng
- Hao Jing
Institutions
- Lawrence Berkeley National Laboratory (US)
- Donghua University (CN)
- Shanghai Jiao Tong University (CN)
- University of Massachusetts Amherst (US)
- Beijing Solar Energy Research Institute (CN)
Publication Details
- Journal
- Advanced Materials
- Published
- 2025-04-23
- DOI
- https://doi.org/10.1002/adma.202501812
- Citations
- 30
- Primary Topic
- Organic Electronics and Photovoltaics
- Type
- article
- Field-Weighted Citation Impact
- 21.91
Funders
- National Natural Science Foundation of China
- Natural Science Foundation of Shandong Province
- National Key Research and Development Program of China