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Impact of helical organization on the photovoltaic properties of oligothiophene supramolecular polymers†
Chemical Science ( IF 7.6 ) Pub Date : 2018-03-12 00:00:00 , DOI: 10.1039/c7sc05093c Hayato Ouchi 1, 2, 3, 4, 5 , Takahiro Kizaki 2, 5, 6, 7, 8 , Masaki Yamato 5, 7, 8, 9, 10 , Xu Lin 3, 4, 5, 11, 12 , Nagahiro Hoshi 3, 4, 5, 11, 12 , Fabien Silly 13, 14, 15, 16, 17 , Takashi Kajitani 5, 18, 19, 20, 21 , Takanori Fukushima 5, 18, 19, 20, 21 , Ken-ichi Nakayama 2, 5, 6, 7, 8 , Shiki Yagai 3, 4, 5, 11, 12
Chemical Science ( IF 7.6 ) Pub Date : 2018-03-12 00:00:00 , DOI: 10.1039/c7sc05093c Hayato Ouchi 1, 2, 3, 4, 5 , Takahiro Kizaki 2, 5, 6, 7, 8 , Masaki Yamato 5, 7, 8, 9, 10 , Xu Lin 3, 4, 5, 11, 12 , Nagahiro Hoshi 3, 4, 5, 11, 12 , Fabien Silly 13, 14, 15, 16, 17 , Takashi Kajitani 5, 18, 19, 20, 21 , Takanori Fukushima 5, 18, 19, 20, 21 , Ken-ichi Nakayama 2, 5, 6, 7, 8 , Shiki Yagai 3, 4, 5, 11, 12
Affiliation
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Helical self-assembly of functional π-conjugated molecules offers unique photochemical and electronic properties in the spectroscopic level, but there are only a few examples that demonstrate their positive impact on the optoelectronic device level. Here, we demonstrate that hydrogen-bonded tapelike supramolecular polymers of a barbiturated oligo(alkylthiophene) show notable improvement in their photovoltaic properties upon organizing into helical nanofibers. A tapelike hydrogen-bonded supramolecular array of barbiturated oligo(butylthiophene) molecules was directly visualized by STM at a liquid–solid interface. TEM, AFM and XRD revealed that the tapelike supramolecular polymers further organize into helical nanofibers in solution and bulk states. Bulk heterojunction solar cells of the helical nanofibers and soluble fullerene showed a power conversion efficiency of 4.5%, which is markedly high compared to that of the regioisomer of butyl chains organizing into 3D lamellar agglomerates.
中文翻译：
螺旋结构对低聚噻吩超分子聚合物光伏性质的影响†
功能性π共轭分子的螺旋自组装在光谱学水平上提供了独特的光化学和电子性质，但是只有少数例子证明了它们对光电器件水平的积极影响。在这里，我们证明了巴比妥化的寡聚（烷基噻吩）的氢键结合的带状超分子聚合物在组织成螺旋纳米纤维时在其光伏性能方面显示出显着的改善。STM在液-固界面上直接观察到带状氢键化的巴比妥寡聚（丁基噻吩）分子的超分子阵列。TEM，AFM和XRD显示，带状超分子聚合物以溶液和本体状态进一步组织成螺旋纳米纤维。
更新日期：2018-03-12
中文翻译：
螺旋结构对低聚噻吩超分子聚合物光伏性质的影响†
功能性π共轭分子的螺旋自组装在光谱学水平上提供了独特的光化学和电子性质，但是只有少数例子证明了它们对光电器件水平的积极影响。在这里，我们证明了巴比妥化的寡聚（烷基噻吩）的氢键结合的带状超分子聚合物在组织成螺旋纳米纤维时在其光伏性能方面显示出显着的改善。STM在液-固界面上直接观察到带状氢键化的巴比妥寡聚（丁基噻吩）分子的超分子阵列。TEM，AFM和XRD显示，带状超分子聚合物以溶液和本体状态进一步组织成螺旋纳米纤维。
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