Hybrid Perovskite Quantum Dot/Non-Fullerene Molecule Solar Cells with Efficiency Over 15% |
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| Authors: | Jiabei Yuan Xuliang Zhang Jianguo Sun Robert Patterson Huifeng Yao Di Xue Yao Wang Kang Ji Long Hu Shujuan Huang Dewei Chu Tom Wu Jianhui Hou Jianyu Yuan |
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| Affiliation: | 1. Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Joint International Research Laboratory of Carbon-Based Functional Materials and Devices, Soochow University, 199 Ren-Ai Road, Suzhou Industrial Park, Suzhou, Jiangsu, 215123 China;2. Australian Centre for Advanced Photovoltaics, School of Photovoltaic and Renewable Energy Engineering, University of New South Wales (UNSW), Sydney, NSW, 2052 Australia;3. State Key Laboratory of Polymer Physics and Chemistry, Beijing National Laboratory for Molecular Sciences CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190 China;4. School of Engineering, Macquarie University Sustainable Energy Research Centre, Macquarie University, Sydney, NSW, 2109 Australia;5. School of Materials Science and Engineering, University of New South Wales (UNSW), Sydney, NSW, 2052 Australia |
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| Abstract: | Organic-inorganic hybrid film using conjugated materials and quantum dots (QDs) are of great interest for solution-processed optoelectronic devices, including photovoltaics (PVs). However, it is still challenging to fabricate conductive hybrid films to maximize their PV performance. Herein, for the first time, superior PV performance of hybrid solar cells consisting of CsPbI3 perovskite QDs and Y6 series non-fullerene molecules is demonstrated and further highlights their importance on hybrid device design. In specific, a hybrid active layer is developed using CsPbI3 QDs and non-fullerene molecules, enabling a type-II energy alignment for efficient charge transfer and extraction. Additionally, the non-fullerene molecules can well passivate the QDs, reducing surface defects and energetic disorder. The champion CsPbI3 QD/Y6-F hybrid device has a record-high efficiency of 15.05% for QD/organic hybrid PV devices, paving a new way to construct solution-processable hybrid film for efficient optoelectronic devices. |
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| Keywords: | CsPbI
3 non-fullerene molecules organic-inorganic hybrid solar cells perovskite quantum dots |
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