Molar Mass Improves the Performance of n‑Type Organic Electrochemical Transistors.

IF 7 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Chemistry of Materials Pub Date : 2025-07-07 eCollection Date: 2025-07-22 DOI:10.1021/acs.chemmater.5c00949

Dominik Stegerer, Tiefeng Liu, Miao Xiong, Han-Yan Wu, Min Gyu Kang, Han Young Woo, Simone Fabiano, Michael Sommer

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Abstract

We report on the synthesis and use of two side-chain-free ionenes with varying heteroatoms, PFu and PTh, for n-type accumulation-mode OECTs. Compared to PTh, PFu is more challenging to make, less stable, and shows increased water solubility. The optical properties and surface morphologies of the two derivatives are comparable, but their microstructures vary distinctly in terms of ordering and backbone orientation. While the backbones of PTh show a preferential face-on orientation, PFu is significantly less ordered. The OECT performance of PTh is improved by 1 order of magnitude compared to PFu, as indicated by μC* values of 116.16 and 10.66 F cm^-1 V^-1 s^-1, respectively. Further increasing the molar mass of PTh doubles the performance, resulting in a record-high μC* value of 225.71 F cm^-1 V^-1 s^-1 and a high μ value of 0.58 cm² V^-1 s^-1, highlighting the crucial role of molecular weight control for enhancing device performance.

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摩尔质量提高n型有机电化学晶体管的性能。

我们报道了两种具有不同杂原子的无侧链离子烯PFu和PTh的合成和使用，用于n型积累模式OECTs。与PTh相比，PFu更难制造，稳定性更差，水溶性更高。这两种衍生物的光学性质和表面形貌具有可比性，但它们的微观结构在有序和主链取向方面存在明显差异。虽然PTh的骨架表现出优先的面朝取向，但PFu的有序性明显较低。PTh的OECT性能比PFu提高了1个数量级，μC*值分别为116.16和10.66 F cm-1 V-1 s-1。进一步增加PTh的摩尔质量，器件性能翻倍，μ c *值达到创纪录的225.71 F cm-1 V-1 s-1， μ值达到创纪录的0.58 cm2 V-1 s-1，这表明分子量控制对器件性能的提高至关重要。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Chemistry of Materials 工程技术-材料科学：综合

CiteScore

14.10

自引率

5.80%

发文量

929

审稿时长

1.5 months

期刊介绍： The journal Chemistry of Materials focuses on publishing original research at the intersection of materials science and chemistry. The studies published in the journal involve chemistry as a prominent component and explore topics such as the design, synthesis, characterization, processing, understanding, and application of functional or potentially functional materials. The journal covers various areas of interest, including inorganic and organic solid-state chemistry, nanomaterials, biomaterials, thin films and polymers, and composite/hybrid materials. The journal particularly seeks papers that highlight the creation or development of innovative materials with novel optical, electrical, magnetic, catalytic, or mechanical properties. It is essential that manuscripts on these topics have a primary focus on the chemistry of materials and represent a significant advancement compared to prior research. Before external reviews are sought, submitted manuscripts undergo a review process by a minimum of two editors to ensure their appropriateness for the journal and the presence of sufficient evidence of a significant advance that will be of broad interest to the materials chemistry community.