电场对自组装苝二酰亚胺电学性质的影响。

Saberi Moghaddam Reza, Draper Emily R, Wilson Claire, Heidari Hadi, Adams Dave J

School of Chemistry, University of Glasgow Glasgow G12 8QQ UK

School of Engineering, James Watt Nanofabrication Centre, University of Glasgow Glasgow G12 8QQ UK.

RSC Adv. 2018 Oct 4;8(59):34121-34125. doi: 10.1039/c8ra06870d. eCollection 2018 Sep 28.

A functionalised perylene bisimide forms two different self-assembled structures in water depending on the solution pH. Structure 1 (formed at pH 6.2) consists of a fibrous structure, whilst structure 2 (formed at pH 9.4) consists of disordered aggregates. Despite being formed from the same molecule, structure 1 shows higher stability under illumination and electric field than structure 2, demonstrating that the nature of the self-assembled aggregate is critical in devices. Interestingly, both structures show p-type behaviour.

一种功能化苝二酰亚胺在水中会根据溶液的pH值形成两种不同的自组装结构。结构1（在pH 6.2时形成）由纤维状结构组成，而结构2（在pH 9.4时形成）由无序聚集体组成。尽管由相同的分子形成，但结构1在光照和电场下比结构2表现出更高的稳定性，这表明自组装聚集体的性质在器件中至关重要。有趣的是，两种结构都表现出p型行为。