Tetrathienoanthracene-Based Copolymers for Efficient Solar Cells
摘要:
A series of semiconducting copolymers (PTAT-x) containing extended pi-conjugated tetrathienoanthracene units have been synthesized. It was shown that the extended conjugation system enhanced the pi-pi stacking in the polymer/PC61 BM blend films and facilitated the charge transport in heterojunction solar cell devices. After structural fine-tuning, the polymer with bulky 2-butyloctyl side chains (PTAT-3) exhibited a PCE of 5.6% when it was blended with PC61BM.
[EN] AN ELECTRON-DONATING UNIT, A COPOLYMER THEREOF AND THEIR PREPARATION METHODS, AS WELL AS THEIR USES<br/>[FR] MOTIF DONNEUR D'ÉLECTRONS, SON COPOLYMÈRE ET LEURS PROCÉDÉS DE PRÉPARATION, AINSI QUE LEURS UTILISATIONS
申请人:UNIV SOUTH SCIENCE & TECHNOLOGY CHINA
公开号:WO2017152354A1
公开(公告)日:2017-09-14
An electron-donating unit of the Formula, a copolymer thereof and their preparation methods, as well as their uses in thin-film transistor or polymer solar cell. The electron-donating unit is an effective building block for constructing high-performance polymer semiconductors due to its solubilizing ability, centrosymmetric geometry, backbone planarity, compact packing, and appropriate electron donating ability versus the previously reported BTOR and DTP units.
In search of efficient solubilizing groups for liquid and luminescent oligo(phenylene-thiophene) chromophores
作者:Yuriy N. Luponosov、Dmitry O. Balakirev、Ivan V. Dyadishchev、Alexander N. Solodukhin、Marina A. Obrezkova、Evgeniya A. Svidchenko、Nikolay M. Surin、Sergey A. Ponomarenko
DOI:10.1039/d0tc04536e
日期:——
liquefaction for them. It was revealed that oligomers with long and branched alkyl SGs still retain high crystallinity, whereas oligomers with alkyl-oligodimethylsiloxane SGs combine very low glass transition temperatures (up to −111 °C) with a liquid-crystalline behaviour. The alkylsilyl SGs were found to be the most efficient, since the oligomersend-capped with trihexyl- and tri(2-butyloctyl)silyl
在这项工作中,具有刚性封端的,共轭的4,4'-双(2-噻吩基)联苯片段被各种类型的增溶基团(SGs)(例如烷基或烷基甲硅烷基或烷基-低聚二甲基硅氧烷)封端的低聚物的合成被报道。与具有简单的己基或三甲基甲硅烷基SG的模型高结晶性低聚物相比,对它们的热和光学性质以及流变学进行了全面研究,这使我们能够阐明结构-性质的相关性,并在液化方面找到了最强大的SG类型。结果表明,具有长链和支链烷基SG的低聚物仍保持较高的结晶度,而具有烷基-低聚二甲基硅氧烷SG的低聚物将极低的玻璃化转变温度(高达-111°C)与液晶性能结合在一起。已发现烷基甲硅烷基SG最有效,因为被三己基和三(2-丁基辛基)甲硅烷基SG封端的低聚物是液体,并且玻璃化转变温度(最高-60°C)和低粘度(最高1.94 Pa s)。所制备的所有低聚物均具有相似的光吸收/发光光谱,并且溶液中的光致发光量子产率较高(90-95%),而对SG类型没有
Semiconducting Compounds and Related Compositions and Devices
申请人:Polyera Corporation
公开号:US20130168659A1
公开(公告)日:2013-07-04
Disclosed are new semiconductor materials prepared from thienocoronene-based compounds and related heteroaromatic analogs. Such compounds can exhibit high carrier mobility and/or good current modulation characteristics. In addition, the compounds of the present teachings can possess certain processing advantages such as solution-processability and/or good stability at ambient conditions.
Four BDT-TPD polymers (PA–PD) were synthesized by modifying the alkylthienyl chains on BDT, placing spacer group between BDT and TPD, and installing extended conjugated side chains on the BDT of the polymer to investigate the correlation between structure and photovoltaic performance for these polymers. The molecular weight of PA–PD polymers ranged from the highest (Mn = 80 kDa for PA) to the lowest