A Self-Assembled 3D Penetrating Nanonetwork for High-Performance Intrinsically Stretchable Polymer Light-Emitting Diodes,Advanced Materials

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A Self-Assembled 3D Penetrating Nanonetwork for High-Performance Intrinsically Stretchable Polymer Light-Emitting Diodes
Advanced Materials ( IF 27.4 ) Pub Date : 2022-04-29 , DOI: 10.1002/adma.202201844
Yanwei Liu _{1,

2} , Mingliang Zhu _{1,

2} , Jianzhe Sun _{1,

2} , Wenkang Shi _{1,

2} , Zhiyuan Zhao ₁ , Xiaofang Wei ₁ , Xin Huang ₁ , Yunlong Guo _{1,

2} , Yunqi Liu _{1,

2}

Affiliation

The emergence of wearable technology can significantly benefit from electronic displays fabricated using intrinsically stretchable (is-) materials. Typically, an improvement in the stretchability of conventional light-emitting polymers is accompanied by a decrease in charge transportability, thus resulting in a significant decrease in device efficiency. In this study, a self-assembled 3D penetrating nanonetwork is developed to achieve increased stretchability and mobility simultaneously, based on high-molecular-weight phenylenevinylene (L-SY-PPV) and polyacrylonitrile (PAN). The mobility of L-SY-PPV/PAN increases by 5–6 times and the stretchability increases from 20% (pristine L-SY-PPV film) to 100%. A high current efficiency (CE) of 8.13 cd A⁻¹ is observed in polymer light-emitting diodes (PLEDs) fabricated using 40% stretched L-SY-PPV/PAN. Furthermore, using a polyethyleneimine ethoxylated (PEIE), an 1,10-phenanthroline monohydrate (pBphen), and a reduced Triton X-100 (TR) chelated Zn-based is- electron-injection layer of Zn-PEIE-pBphen-TR, an is-PLED is realized with a turn-on voltage of 6.5 V and a high CE of 2.35 cd A⁻¹. These results demonstrate the effectiveness of using the self-assembled 3D penetrating nanonetwork for the fabrication of is-PLEDs.

中文翻译：

用于高性能本征可拉伸聚合物发光二极管的自组装 3D 穿透纳米网络

可穿戴技术的出现可以显着受益于使用固有可拉伸 (is-) 材料制造的电子显示器。通常，传统发光聚合物的可拉伸性的提高伴随着电荷传输能力的降低，从而导致器件效率的显着降低。在这项研究中，基于高分子量亚苯基亚乙烯基 (L-SY-PPV) 和聚丙烯腈 (PAN) 开发了一种自组装的 3D 穿透纳米网络，以同时实现更高的拉伸性和流动性。L-SY-PPV/PAN 的流动性提高了 5-6 倍，拉伸性从 20%（原始 L-SY-PPV 薄膜）提高到 100%。8.13 cd A ^{-1的高电流效率 (CE)}在使用 40% 拉伸 L-SY-PPV/PAN 制造的聚合物发光二极管 (PLED) 中观察到。此外，使用聚乙烯亚胺乙氧基化 (PEIE)、1,10-菲咯啉一水合物 (pBphen) 和还原的 Triton X-100 (TR) 螯合 Zn 基是- Zn-PEIE-pBphen-TR 的电子注入层，is -PLED以6.5 V 的开启电压和 2.35 cd A ^-1的高 CE 实现。这些结果证明了使用自组装 3D 穿透纳米网络制造is - PLED 的有效性。

更新日期：2022-04-29

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