Metal Phthalocyanine-Fullerene Dyads: Promising Lamellar Columnar Donor-Acceptor Liquid Crystal Phases.

Metal Phthalocyanine-Fullerene Dyads: Promising Lamellar Columnar Donor-Acceptor Liquid Crystal Phases.
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金属酞菁-富勒烯二元组:有前途的层状柱状供体-受体液晶相

DOI:
10.1002/cplu.202000540
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发表时间:
1938
期刊:
影响因子:
3.4
通讯作者:
E. Freytag
E. Freytag
中科院分区:
化学3区
文献类型:
--
作者:
M. Lehmann;M. Dechant;D. Weh;E. Freytag

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以富勒烯为基团的液晶两亲分子在光伏领域的应用已被广泛研究,X-射线结果表明,C60在π堆积圆盘周围形成了螺旋状的纳米分离结构。迄今报道的最有前景的材料已被重新合成,并通过XRS、密度测量、模拟和电子密度重建进行了全面的研究。与前人报道的结果不同,结果表明金属酞菁−富勒烯介晶以p2gm对称性的层状柱状相堆积。富勒烯成层聚集,两侧是酞菁柱,从而解释了电子和空穴的平衡载流子迁移率。这种可变施主−受体结构在有机电子领域具有广阔的应用前景。
Liquid crystal (LC) shape‐amphiphiles with a disc tethered to a fullerene have been intensely studied for the application in photovoltaics, and helical nanosegregation of C60has been claimed around the π‐stacking disks based on X‐ray results. The most promising materials reported to date have been resynthesized and studied comprehensively by XRS, density measurements, modelling, and electron density reconstruction. In contrast to previous reports, the results indicate that metal phthalocyanine−fullerene mesogens pack in lamellar columnar phases with p2gm symmetry. Fullerenes assemble in layers and are flanked by phthalocyanine columns, thus explaining the balanced charge carrier mobility of electrons and holes. Such variable donor−acceptor structures are promising for organic electronic applications.
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