Multifunctional all‐polymer photovoltaic blend with simultaneously improved efficiency (18.04%), stability and mechanical durability
Tao Liu,
Kangkang Zhou,
Ruijie Ma,
Libin Zhang,
Ciyuan Huang,
Zhenghui Luo,
Hongxiang Zhu,
Shangfei Yao,
Chuluo Yang,
Bingsuo Zou,
Long Ye
Affiliations
Tao Liu
Guangxi Key Lab of Processing for Nonferrous Metals and Featured Materials and Key lab of new Processing Technology for Nonferrous Metals and Materials, Ministry of Education; School of Resources, Environments and Materials Guangxi University Nanning China
Kangkang Zhou
School of Materials Science and Engineering, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Tianjin University Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Tianjin China
Ruijie Ma
Department of Electronic and Information Engineering, Research Institute for Smart Energy (RISE) The Hong Kong Polytechnic University Hong Kong China
Libin Zhang
Guangxi Key Lab of Processing for Nonferrous Metals and Featured Materials and Key lab of new Processing Technology for Nonferrous Metals and Materials, Ministry of Education; School of Resources, Environments and Materials Guangxi University Nanning China
Ciyuan Huang
Guangxi Key Lab of Processing for Nonferrous Metals and Featured Materials and Key lab of new Processing Technology for Nonferrous Metals and Materials, Ministry of Education; School of Resources, Environments and Materials Guangxi University Nanning China
Zhenghui Luo
Shenzhen Key Laboratory of New Information Display and Storage Materials, College of Materials Science and Engineering Shenzhen University Shenzhen P. R. China
Hongxiang Zhu
Guangxi Key Lab of Processing for Nonferrous Metals and Featured Materials and Key lab of new Processing Technology for Nonferrous Metals and Materials, Ministry of Education; School of Resources, Environments and Materials Guangxi University Nanning China
Shangfei Yao
Guangxi Key Lab of Processing for Nonferrous Metals and Featured Materials and Key lab of new Processing Technology for Nonferrous Metals and Materials, Ministry of Education; School of Resources, Environments and Materials Guangxi University Nanning China
Chuluo Yang
Shenzhen Key Laboratory of New Information Display and Storage Materials, College of Materials Science and Engineering Shenzhen University Shenzhen P. R. China
Bingsuo Zou
Guangxi Key Lab of Processing for Nonferrous Metals and Featured Materials and Key lab of new Processing Technology for Nonferrous Metals and Materials, Ministry of Education; School of Resources, Environments and Materials Guangxi University Nanning China
Long Ye
School of Materials Science and Engineering, Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Tianjin University Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Tianjin China
Abstract One of the most appealing material systems for solar energy conversion is all‐polymer blend. Presently, the three key merits (power conversion efficiency, operation stability and mechanical robustness) exhibited a trade‐off in a particular all‐polymer blend system, which greatly limit its commercial application. Diverting the classic ternary tactic of organic solar cells based on polymer, nonfullerene small molecule and fullerene, herein we demonstrate that the three merits of a benchmark all‐polymer blend PM6:PY‐IT can be simultaneously maximized via the introduction of a polymerized fullerene derivative PPCBMB. Importantly, the addition of the guest component promoted the power conversion efficiency of PM6:PY‐IT blend from 16.59% to 18.04%. Meanwhile, the device stability and film ductility are also improved due to the addition of this polymerized fullerene material. Morphology and device physics analyses reveal that optimal ternary system contains well‐maintained molecular packing and crystallinity, being beneficial to keeping favorable charge transport and the reduced domain size contributed to charge generation and ductility improvement. Furthermore, the ternary photovoltaic blend was successfully used as photocatalysts, and an excellent heavy metal removal from water was demonstrated. This study showcases the multi‐functions of all‐polymer blends via the use of polymerized fullerenes.
