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塑化剂的设计原理是"像是溶解像":半导体流体塑化可拉伸的完全π合的聚合物膜,用于统一的大面积和灵活的深蓝色聚合物发光二极管

Jingyao Ma¹, Man Xu¹, Zhiqiang Zhuo²

¹State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Nanjing University of Posts and Telecommunications, 9 Wenyuan Road, Nanjing, 210023, China.

Advanced materials (Deerfield Beach, Fla.)

|November 15, 2024

概括

一个新的"Like Dissolves Like"策略使用半导体流体塑化剂 (SFP) 来创建高度可拉伸的聚合物薄膜. 这种方法通过防止相位分离和提高性能来增强深蓝色聚合物发光二极管 (FPLED).

科学领域:

材料科学材料科学材料科学
聚合物化学聚合物化学
光电学是指光电子产品.

背景情况:

全 π 结合聚合物 (FπCPs) 的物理混合用于灵活光电子中的可拉伸薄膜.
混合往往导致相位分离,形态差,以及深蓝色柔性聚合物发光二极管 (FPLED) 的性能降低.

研究的目的:

为高性能深蓝色FPLED开发使用外部可塑化的内在可拉伸的FPCP薄膜.
为创建有效的半导体流体可塑化剂 (SFPs) 建立一个"Like Dissolves Like"设计原则.

主要方法:

为SFPs提出了三个要求:类似的结合骨架,分子极性和电子结构.
准备的非极性M1和极性M2塑化剂用于聚 (PFO) 基于原理.
制造和特征的大面积塑化PFO薄膜和深蓝色FPLED.

主要成果:

塑化PFO薄膜显示出高效,窄带,稳定的超深蓝色电光发光 (FWHM < 40 nm,CIE: 0.12, 0.04).
薄膜表现出统一的形态和优良的内在伸展性 (骨折应变>20%,裂纹开始应变>120%).
深蓝色的FPLED实现了高亮度 (≈3000 cd cm-2),并展示了出色的拉伸-变形循环稳定性.

结论:

"喜欢溶解喜欢"原则有效地为可拉伸的FπCP薄膜设计匹配的SFP.
这种方法克服了相隔问题,使得高性能可拉伸深蓝FPLED成为可能.
开发的SFP对于推进柔性电子和光电子应用至关重要.

关键词:

深蓝色的柔性聚合物发光二极管.半导体流体的塑化半导体流体可伸缩的全 π 结合聚合物薄膜.一致的深蓝色排放.像是溶解了像的

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