Fig. 1.
Schematic illustration of the key strategies for achieving the PCE ≥ 20% in non-D18-based OSCs.
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Fang Yang, Erming Feng, Chujun Zhang, Jianhui Chang, Hengyue Li, Fangyang Liu, Yingping Zou, Junliang Yang. Non-D18-based organic solar cells: strategies and insights toward the efficiency ≥ 20%[J]. Journal of Semiconductors, 2026, In Press. doi: 10.1088/1674-4926/25080035
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F Yang, E M Feng, C J Zhang, J H Chang, H Y Li, F Y Liu, Y P Zou, and J L Yang, Non-D18-based organic solar cells: strategies and insights toward the efficiency ≥ 20%[J]. J. Semicond., 2026, 47(2), 021801 doi: 10.1088/1674-4926/25080035
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Non-D18-based organic solar cells: strategies and insights toward the efficiency ≥ 20%
DOI: 10.1088/1674-4926/25080035
CSTR: 32376.14.1674-4926.25080035
More Information-
Fang Yang got her BS from Jiangxi Technology and Normal University and her MS from Hunan University. Now she is a PhD student at Central South University under the supervision of Prof. Junliang Yang. Her work focuses on high efficiency organic solar cells -
Junliang Yang received his PhD in 2008 from CIAC (CAS). Then he joined Tim Jones Group at the University of Warwick. In April 2011, he joined Andrew Holmes Group at the University of Melbourne and CSIRO. In 2012, he was appointed to be a Professor in School of Physics and Electronics at the Central South University. His research focuses on perovskite solar cells, organic solar cells, flexible and printed electronics - Corresponding author: junliang.yang@csu.edu.cn
- Revised Date: 2025-09-18 Available Online: 2025-10-13
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Abstract
Significant progress has been achieved in the field of organic solar cells (OSCs). Most devices with power conversion efficiencies (PCEs) exceeding 20% rely predominantly on active materials that incorporate D18 or its derivatives as the donor. In contrast, the PCEs over 20% have been realized as well for OSCs with the non-D18-based donor materials by simultaneously optimizing material properties, active layer morphologies and interface engineering, thereby demonstrating the potential to outperform D18 counterparts. Therefore, this review summarizes an overview of recent advancements in OSCs with the PCEs over 20% utilizing the non-D18-based donor materials, and highlights three critical aspects including molecular design strategies, the active layer morphologies, and the interface optimization. Their synergistic roles are advantageous in enhancing the exciton dissociation, facilitating the charge transport, and suppressing the recombination losses, accordingly supporting the improved PCEs over 20%. Furthermore, the challenges and valuable insights are discussed, which can lead to improved efficiency, scalable fabrication, and enhanced environmental and thermal stability, potentially accelerating the commercialization of OSCs. -
References
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