Efficient Perovskite/Organic Tandem Photovoltaic Devices and Large‐area Modules Featuring Thick‐Film Organic Solar Cells
Abstract
Abstract Perovskite‐organic tandem solar cells (TSCs) possess significant potential due to their unique features, such as orthogonal processing solvents, tunable bandgap, and infinite molecular designs. However, their device performance is often hindered by the limited series current density, which is constrained by the absorption of the rear organic solar cell (OSC). Here, a fine‐grained sub‐cell matching model has been developed that enables rapid screening of material combinations based on practical sub‐cell device parameters. The model indicates that increasing the thickness of the OSC layer is an effective approach to boost efficiency, while also reducing manufacturing challenges for large‐scale production. To mitigate the charge collection issues arising from excessive thickness, a contact passivation technique based on a self‐assembled monolayer has been developed, which minimizes non‐radiative recombination and reduces the Schottky barrier at the interface, enabling more balanced hole‐electron transport. As a result, the thick‐film (300 nm) has achieved a record‐high efficiency of 18.08% (certified as 17.80%), enhancing the efficiency of TSCs to 24.31% (certified at 24.00%). Furthermore, a large‐area tandem photovoltaic module with an efficiency exceeding 18.54% (18.48 cm 2 ) has been demonstrated. To the knowledge, this represents the first module demonstration for perovskite‐organic TSCs.
Article Details
Authors (17)
Xu Chen
Jinan University , , , ,
Ziyan Jia
State Key Laboratory of Modern Optical Instrumentation College of Optical Science and Engineering Zhejiang University Hangzhou 310058 China
Zeng Chen
Chuanyu Zhou
Collaborative Innovation Centre of Photovoltaic Science & Engineering Changzhou University Changzhou Jiangsu 213164 China
Siyuan Huang
State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering
Xinxin Xia
Sen Liang
State Key Laboratory of Biopharmaceutical Preparation and Delivery, Institute of Process Engineering, Chinese Academy of Sciences
Pengjiu Wang
State Key Laboratory of Modern Optical Instrumentation College of Optical Science and Engineering Zhejiang University Hangzhou 310058 China
Tingming Jiang
Tianyu Liu
International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, Institute of Microscale Optoelectronics
Xuehui Xu
State Key Laboratory of Modern Optical Instrumentation College of Optical Science and Engineering Zhejiang University Hangzhou 310058 China
Buyi Yan
Jizhong Yao
Hangzhou Microquanta Semiconductor Inc Hangzhou 311121 China
Xinhui Lu
Department of Physics
Weidong Shen
Haiming Zhu
Zhejiang Key Laboratory of Excited-State Energy Conversion and Energy Storage, Department of Chemistry, Institute of Fundamental and Transdisciplinary Research
Yang (Michael) Yang
State Key Laboratory of Modern Optical Instrumentation College of Optical Science and Engineering Zhejiang University Hangzhou 310058 China