Sökning: onr:"swepub:oai:research.chalmers.se:8d1eb107-dcc3-4a0e-9455-fb7ddf26e718" > Low-bandgap polymer...
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000 | 03672naa a2200445 4500 | |
001 | oai:research.chalmers.se:8d1eb107-dcc3-4a0e-9455-fb7ddf26e718 | |
003 | SwePub | |
008 | 190521s2020 | |||||||||||000 ||eng| | |
024 | 7 | a https://research.chalmers.se/publication/5103182 URI |
024 | 7 | a https://doi.org/10.1016/j.jechem.2019.04.0072 DOI |
040 | a (SwePub)cth | |
041 | a engb eng | |
042 | 9 SwePub | |
072 | 7 | a art2 swepub-publicationtype |
072 | 7 | a ref2 swepub-contenttype |
100 | 1 | a Shahid, Bilalu Chinese Academy of Sciences4 aut |
245 | 1 0 | a Low-bandgap polymers with quinoid unit as π bridge for high-performance solar cells |
264 | 1 | b Elsevier BV,c 2020 |
520 | a To construct efficient low band gap polymers, increasing the Quinone structure of the polymer backbone could be one desirable strategy. In this work, two D–Q–A–Q polymers P1 and P2 were designed and synthesized with thiophenopyrrole diketone (TPD) and benzothiadiazole (BT) unit as the core and ester linked thieno[3,4-b]thiophene (TT) segment as π-bridging, and the main focus is to make a comparative analysis of different cores in the influence of the optical, electrochemical, photochemical and morphological properties. Compared with the reported PBDTT EH –TBTT HD−i , P1 exhibited the decreased HOMO energy level of −5.38 eV and lower bandgap of 1.48 eV. Furthermore, when replaced with BT core, P2 showed a red-shifted absorption profile of polymer but with up-shifted HOMO energy level. When fabricated the photovoltaic devices in conventional structure, just as expected, the introduction of ester substituent made an obvious increase of V OC from 0.63 to 0.74 V for P1. Besides, due to the deep HOMO energy level, higher hole mobility and excellent phase separation with PC 71 BM, a superior photovoltaic performance (PCE = 7.13%) was obtained with a short-circuit current density (J SC ) of 14.9 mA/cm 2 , significantly higher than that of P2 (PCE = 2.23%). Generally, this study highlights that the strategy of inserting quinoid moieties into D–A polymers could be optional in LBG-polymers design and presents the importance and comparison of potentially competent core groups. | |
650 | 7 | a NATURVETENSKAPx Kemix Polymerkemi0 (SwePub)104062 hsv//swe |
650 | 7 | a NATURAL SCIENCESx Chemical Sciencesx Polymer Chemistry0 (SwePub)104062 hsv//eng |
650 | 7 | a NATURVETENSKAPx Fysikx Annan fysik0 (SwePub)103992 hsv//swe |
650 | 7 | a NATURAL SCIENCESx Physical Sciencesx Other Physics Topics0 (SwePub)103992 hsv//eng |
650 | 7 | a NATURVETENSKAPx Fysikx Den kondenserade materiens fysik0 (SwePub)103042 hsv//swe |
650 | 7 | a NATURAL SCIENCESx Physical Sciencesx Condensed Matter Physics0 (SwePub)103042 hsv//eng |
653 | a Quinone structure | |
653 | a Low bandgap polymer | |
653 | a π-bridging | |
653 | a Side-chain engineering | |
700 | 1 | a Yuan, Xiyueu Chinese Academy of Sciences4 aut |
700 | 1 | a Wang, Qianu Chinese Academy of Sciences4 aut |
700 | 1 | a Zhou, Diu Chinese Academy of Sciences4 aut |
700 | 1 | a Wang, Ergang,d 1981u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)ergang |
700 | 1 | a Bao, Xichangu Chinese Academy of Sciences4 aut |
700 | 1 | a Zhu, D. Q.u Chinese Academy of Sciences4 aut |
700 | 1 | a Yang, R.u Chinese Academy of Sciences4 aut |
710 | 2 | a Chinese Academy of Sciencesb Chalmers tekniska högskola4 org |
773 | 0 | t Journal of Energy Chemistryd : Elsevier BVg 40:2020, s. 180-187q 40:2020<180-187x 2095-4956 |
856 | 4 8 | u https://research.chalmers.se/publication/510318 |
856 | 4 8 | u https://doi.org/10.1016/j.jechem.2019.04.007 |
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