Study on ICBA/PCBM Hybrid Organic Electron Transport Layers for Enhancing the Performance of Wide-bandgap Perovskite Solar Cells
GAO Sibo1, XIA Shizhe1, ZHANG Qiuhui1, WANG Yingchun2, JIANG Weibin2,*
1 Ningbo Power Supply Company of State Grid Zhejiang Electric Power Co., Ltd., Ningbo 315000, Zhejiang, China 2 Yantai Taixin Electronics Technology Co., Ltd., Yantai 264000, Shandong, China
Abstract: Wide-bandgap perovskites effectively absorb short-wavelength sunlight. Recently, these materials have been integrated with silicon to create tandem solar cells, achieving high power conversion efficiencies (PCEs). This study focuses on enhancing the performance of wide-bandgap perovskite solar cells by developing a hybrid organic electron transport layer (ETL). We utilized a specific wide-bandgap perovskite with the composition Cs0.15FA0.79MA0.06Pb(I0.7Br0.3)3 and a bandgap of 1.74 eV. To optimize electron transport, we coated a thin layer of [6, 6]-phenyl-C-61-butyric acid methyl ester (PCBM) onto an indene-C60 bisadduct (ICBA) layer. This strategy improved the energy band alignment within the device, facilitating efficient electron transport from the perovskite to the Ag electrode. Our findings indicate that a 10 nm PCBM layer yielded the best performance for the wide-bandgap perovskite solar cells, resulting in an average PCE of 18.5%. In contrast, the control devices without the PCBM layer showed an average PCE of only 16.8%. Further characterization revealed that the inclusion of PCBM significantly reduced the charge transport resistance from 452.2 Ω to 375.6 Ω and decreased the charge extraction time from 0.63 ms to 0.32 ms. As a result, the short-circuit current density and fill factor of the devices were improved, thereby improving the PCE. The strategy presented in this work signi-ficantly improves the performance of wide-bandgap perovskite solar cells, which is crucial for advancing the development of high-efficiency tandem solar cells.
高斯泊, 夏时哲, 张秋慧, 王迎春, 姜维宾. ICBA/PCBM复合有机电子传输层提升宽带隙钙钛矿太阳能电池性能的研究[J]. 材料导报, 2026, 40(10): 25040160-5.
GAO Sibo, XIA Shizhe, ZHANG Qiuhui, WANG Yingchun, JIANG Weibin. Study on ICBA/PCBM Hybrid Organic Electron Transport Layers for Enhancing the Performance of Wide-bandgap Perovskite Solar Cells. Materials Reports, 2026, 40(10): 25040160-5.
1 Dai J Q, Zhang D, Wu X S. Progress in Physics, 2024, 44(1), 19 (in Chinese). 戴加祺, 章东, 吴小山. 物理学进展, 2024, 44(1), 19. 2 NREL Best Research-Cell Efficiency Chart (Photovoltaic Research). Available online:http://www.nrel.gov/pv/cell-efficiency. html, accessed on 10 February 2025. 3 Chai L, Zhong M. Acta Physica Sinica, 2016, 65(23), 18 (in Chinese). 柴磊, 钟敏. 物理学报, 2016, 65(23), 18. 4 Liu S W, Ren L Z, Jin B W, et al. Acta Physica Sinica, 2024, 73(6), 379 (in Chinese). 刘思雯, 任立志, 金博文. 物理学报, 2024, 73(6), 379. 5 Dong Y M, Tan Z A. Journal of Inorganic Materials, 2023, 38(9), 1031 (in Chinese). 董怡曼, 谭占鳌. 无机材料学报, 2023, 38(9), 1031. 6 Zhang M R, Zhu Z W, Yang X Q. Acta Physica Sinica, 2023, 72(5), 156 (in Chinese). 张美荣, 祝曾伟, 杨晓琴. 物理学报, 2023, 72(5), 156. 7 Wang R, Liu X, Yan S, et al. Nature Communications, 2024, 15, 8899. 8 Lin Y, Chen B, Zhao F, et al. Advanced Materials, 2017, 29, 1700607. 9 Gan Y, Hao X, Li W, et al. Solar RRL, 2023, 7, 2300519. 10 Chen B, Wang P, Ren N, et al. Journal of Semiconductors, 2022, 43, 052201. 11 Pan M A, Lau T K, Tang Y, et al. Journal of Materials Chemistry A, 2019, 7, 20713. 12 Liu L, Yang Y, Du M, et al. Advanced Energy Materials, 2023, 13, 2202802. 13 Jiang X, Wang F, Wei Q, et al. Nature Communications, 2020, 11, 1245. 14 Nie T, Fang Z, Ren X, et al. Nano-Micro Letters, 2023, 15, 70. 15 Patel J, Wong L J, Van Reenen S, et al. Advanced Electronic Materials, 2017, 3, 1600470. 16 Meng J, Gao B W. Acta Physica Sinica, 2023, 72(12), 310 (in Chinese). 孟婧, 高博文. 物理学报, 2023, 72(12), 310. 17 Xu X, Sun C, Jing J, et al. ACS Applied Materials & Interfaces, 2022, 14, 36582.
渝公网安备50019002502923号 版权所有：《材料导报》编辑部
2026, Vol. 40 
