Non-fused Polymerized Small-Molecule Acceptors with a Benzothiadiazole Core for All-Polymer Solar Cells
Source abstract
Abstract
Polymerized small-molecule acceptors (PSMAs) have made significant progress as the application in all-polymer solar cells (all-PSCs). Most PSMAs are constructed by near-infrared fused-ring electron acceptors via Stille polymerization, such as Y-series acceptors. However, very limited non-fused electron acceptors with simplified synthetic complexity have been used in PSMAs. In this work, two non-fused PSMAs with a benzothiadiazole (BT) core are developed for application in all-PSCs. The S-O non-covalent interaction and the regioregularity have been introduced to improve the crystallinity and charge transport properties. As a result, a high-power conversion efficiency (PCE) of 11.42% with an enhanced photocurrent has been obtained in these regioregular PBTO-γ-based solar cells, representing the highest PCEs based on non-fused PSMAs. The encouraging results will intrigue more design of non-fused PSMAs toward high-performance all-PSCs.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Organic Electronics and Photovoltaics · Conducting polymers and applications · Perovskite Materials and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Beijing Advanced Innovation Center for Soft Matter Science and Engineering and State Key Laboratory of Organic−Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, People’s Republic of China
Institute of Applied Chemistry, Jiangxi Academy of Sciences, Nanchang, Jiangxi 330096, People’s Republic of China
College of Basic Medicine, Hebei University, Baoding, Hebei 071002, People’s Republic of China
Funding
Ministry of Science and Technology of the People's Republic of China · Natural Science Foundation of Beijing Municipality · Central University Basic Research Fund of China · National Natural Science Foundation of China · Jiangxi Academy of Sciences · State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology
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