Studying multi‐purpose applications of a specific material is a challenging topic in the organic electronics community. In this work, through molecular engineering and smart device structure design strategy, high performance in transistors and thin film display devices is simultaneously achieved by applying a simple new dye molecule, naphthalene flanked diketopyrrolopyrrole (DPPN), as the active layer material. Short alkyl chains (hexyl or octyl side groups for H‐DPPN and O‐DPPN, respectively) are adapted to improve the hole mobility in organic thin film transistors (OTFTs) and single crystal transistors (SCTs). Specifically, H‐DPPN shows a similar hole mobility in either OTFTs or SCTs, while O‐DPPN exhibits a dramatically enhanced mobility, reaching 0.125 cm² V⁻¹ s⁻¹ in SCTs. Additionally, a smart organic light emitting diode (OLED) device is designed by using DPPN molecule as the dopant with a host matrix. The promising external quantum efficiencies of 4.0% and 2.3% are achieved for H‐DPPN and O‐DPPN fabricated OLEDs. Overall, in this work, it is reported that DPP‐based small molecules can simultaneously function well in both transistors and thin film displays with high device performance through molecular and smart device engineering.

中文翻译：

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萘侧链二酮吡咯并吡咯对高性能单晶晶体管和有机薄膜显示器的短烷基链工程调制

在有机电子领域，研究特定材料的多用途应用是一个具有挑战性的主题。在这项工作中，通过分子工程和智能器件结构设计策略，通过应用简单的新型染料分子萘侧二酮吡咯并吡咯（DPPN）作为活性层材料，可以同时在晶体管和薄膜显示设备中实现高性能。短的烷基链（分别为H-DPPN和O-DPPN的己基或辛基侧基）适用于改善有机薄膜晶体管（OTFT）和单晶晶体管（SCT）中的空穴迁移率。具体而言，H-DPPN在OTFT或SCT中显示出相似的空穴迁移率，而O-DPPN则显示出显着增强的迁移率，达到0.125 cm ² V ^-1 s ^-1在SCT中。此外，通过使用DPPN分子作为掺杂剂和主体基质，设计了一种智能有机发光二极管（OLED）器件。H-DPPN和O-DPPN制成的OLED的外部量子效率有望达到4.0％和2.3％。总体而言，据报道，通过分子和智能设备工程，基于DPP的小分子可以在晶体管和薄膜显示器中同时发挥良好的性能，并具有很高的设备性能。