Brominated Perylene Diimides as Cathode Interface Materials for High Efficiency Organic Solar Cells
Source abstract
Abstract
Abstract The cathode interface materials (CIMs) are crucial for organic solar cells (OSCs). Herein, excellent CIMs PDINN‐Br and PDINN‐2Br are reported, by bromination of PDINN. Both of them have strong work function (WF) tunability, self‐doping properties, and excellent film‐forming properties. They show higher electron mobility (over 2 × 10−4 cm2 V−1 s−1) and conductivity (≈5 × 10−5 S cm−1) than PDINN. Grazing‐incidence wide‐angle X‐ray scattering measurements (GIWAXS) illustrate that PDINN‐2Br has more ordered arrangement than PDINN and PDINN‐Br. PDINN, PDINN‐Br, and PDINN‐2Br in PM6:Y6‐based OSCs lead to 15.96%, 16.71%, and 17.03% power conversion efficiency (PCE), respectively. The PDINN‐2Br has well performance as well in the PM6:PYIT and D18:L8BO OSCs, PCEs of 18.14% and 18.98% are obtained, respectively, which are higher than PDINN (16.97% and 18.01%).
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Organic Electronics and Photovoltaics · Conducting polymers and applications · Advanced Memory and Neural Computing
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
College of Chemistry and Chemical Engineering Film Energy Chemistry for Jiangxi Provincial Key Laboratory (FEC) Nanchang University 999 Xuefu Avenue Nanchang 330031 China
School of Chemistry and Chemical Engineering Frontiers Science Center for Transformative Molecules In‐situ Center for Physical Science Center of Hydrogen Science Shanghai Jiao Tong University Shanghai 200240 China
Funding
National Natural Science Foundation of China · Natural Science Foundation of Jiangxi Province
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