https://scholars.lib.ntu.edu.tw/handle/123456789/598126
標題: | Coil-rod-coil triblock copolymers synthesized by macromolecular clicking and their compatibilizer effects in all-polymer solar cells | 作者: | Otep S Tseng Y.-C Yomogita N Chang J.-F Chueh C.-C Michinobu T. CHU-CHEN CHUEH |
關鍵字: | Absorption spectroscopy;Copper compounds;Fourier transform infrared spectroscopy;Hydrocarbons;Phase separation;Polymer films;Redox reactions;Thermoanalysis;Topography;Ultraviolet spectroscopy;All-Polymer Solar Cells;Click reaction;Coil rods;Polystyrene block;Power conversion efficiencies;Rod-coil;Simple++;Synthesised;Terminal alkyne;Triblock-copolymers;Block copolymers | 公開日期: | 2022 | 卷: | 10 | 期: | 1 | 起(迄)頁: | 346-359 | 來源出版物: | Journal of Materials Chemistry C | 摘要: | Poly(diethynylthiophene) (PDET) synthesizedviaHay coupling polycondensation retains terminal alkynes for tethering polystyrene (PS) blocks by a simple Cu-catalyzed azide-alkyne click (CuAAC) reaction. The successful synthesis of triblock copolymers was confirmed by1H NMR, FTIR, and GPC measurements. Optical and electrochemical properties of thePDETblock were conserved in the triblock copolymers, as determined from the UV-vis absorption spectra and redox potentials. Surface topography of the polymer films revealed the micrometer-scale features attributable to phase separation, which was supported by thermal analyses. The compatibilizer functions ofPDETand triblock copolymerP1were investigated and compared in all-polymer solar cells (all-PSCs). Addition of 1 wt%P1was shown to result in an enhanced power conversion efficiency (PCE) from 5.90% to 6.24%, corresponding to a relative increase of ?6%, whereas the addition of 1 wt%PDETdecreased the resultant PCE. Notably, adding a proper compatibilizer helped reduce the device's potential loss, as evidenced by the improvedVocin the 1 wt%P1device. Our results highlight the critical role of the coil segment in designing block copolymer-based compatibilizers for all-PSCs. Also, this study demonstrates a straightforward synthetic route for coil-rod-coil triblock copolymers that afford a compatibilizer function suitable for all-PSCs. ? The Royal Society of Chemistry 2021. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85121907947&doi=10.1039%2fd1tc04948h&partnerID=40&md5=0cd56afd1f4cd94dea7882ebe19e7541 https://scholars.lib.ntu.edu.tw/handle/123456789/598126 |
ISSN: | 20507534 | DOI: | 10.1039/d1tc04948h |
顯示於: | 化學工程學系 |
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