Hierarchical Self-Assembly of Perylene Diimide (PDI) Crystals

• DOI: 10.1021/acs.jpclett.0c01226
• Publication Date: 2020-04-30T20:51:06Z
• Authors: Yong-Jae Kim; Yonghee Lee; Kangho Park; Chi Won Ahn; Hee-Tae Jung; Hwan-Jin Jeon
• Keywords: Diimide

Controlling molecular self-assembly of organic semiconductors is a key factor in enhancing the performance electronics and optoelectronics. However, unlike various p-type semiconductors, it has proven elusive to control with about tens nm dimensions using n-type including perylene diimide (PDI), which most promising alternative fullerene derivatives, without an additional synthetic method or additives, thus far. Here, we developed simple self-assembling for hierarchical PDI crystals nanometer-to-micrometer scale features pristine PDI-C8 additive. Interestingly, observed crystalline optical properties self-assembled depending on their size structural features. In addition, fabricated p–n junctions composed poly(3-hexylthiophene) (P3HT), where had coassembled blended nanomorphologies, confirmed that nanomorphologies enabled more effective energy transfer than nanomorphologies.