Organic solar cells have achieved breakthrough power conversion efficiencies exceeding 21% over the past five years, alongside advances in operational stability, green-solvent and solvent-tolerant scalable processing, and application-specific form factors, including flexible, semitransparent, indoor, and building-integrated photovoltaics. They can be implemented as single-junction devices or all-organic tandem solar cells, and can also be integrated with silicon, perovskite, and other absorber materials in hybrid tandem architectures.
With this cross-journal Collection, the editors at Nature Communications, Communications Materials, and Scientific Reports invite manuscripts that highlight advances in the synthesis, design, fabrication, and real-world testing of OSCs.
In this Collection we aim to bring together Molecular and materials design for high-efficiency organic solar cells, Device engineering and Scalable fabrication strategies, for both single-junction and tandem (including hybrid) photovoltaic architectures and invite Commentary from experts.
Topics of interest include but are not limited to the following:
- High-performance donor–acceptor molecular design
- Morphology control and structure–property relationships
- Interfacial materials and contact engineering
- Charge-transfer, recombination, and energy-loss mechanisms
- Ultrafast spectroscopy and operando photophysics
- Tandem architectures
- Flexible, stretchable and wearable OSC
- Semi-transparent and building-integrated OSC
- Scalable coating and printing methods
- Green solvents and sustainable fabrication
- Large-area module design and fabrication
We welcome the submissions of primary research that fall into any of the above-mentioned categories. All the submissions will be subject to the same peer review process and editorial standard as regular Nature Communications, Communications Materials, and Scientific Reports articles.

