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首页> 外文期刊>RSC Advances >Highly crystalline and uniform conjugated polymer thin films by a water-based biphasic dip-coating technique minimizing the use of halogenated solvents for transistor applications
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Highly crystalline and uniform conjugated polymer thin films by a water-based biphasic dip-coating technique minimizing the use of halogenated solvents for transistor applications

机译：高结晶和均匀的共轭聚合物薄膜通过水基双相浸涂技术，最小化使用卤化溶剂进行晶体管应用

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摘要

The commercialization of organic electronics will require minimizing the use of halogenated solvents used to solution-process organic semiconductors, which is a crucial step for large-area coating methods, such as the dip-coating method. Here, we report a novel biphasic dip-coating method which uses a water-based biphasic solution and produces a uniform, smooth, and crystalline conjugated polymer thin film in the presence of a solvent additive. We demonstrated that a solvent additive with a high boiling point and solubility parameter similar to that of the solution affected the solvent evaporation rate and improved the crystallinity of the dip-coated polymer thin film. The method used to add the solvent strongly influenced how the solvent additive diffused into the polymer solution, which affected the resulting film morphology. The crystallinity and morphology of the polymer films were correlated with the electrical characteristics, and the most crystalline film displayed a high hole field effect mobility of 0.0391 cm(2) V-1 s(-1) when processed from the solvent mixture without post-treatment. Our findings provide a direction for the development of reliable and promising organic thin film transistor technologies.
机译：有机电子器件的商业化需要最小化使用用于溶液加工有机半导体的卤代溶剂，这是大面积涂布方法的关键步骤，例如浸涂方法。在此，我们报告了一种新型双相浸涂法，其使用水基双相溶液，并在溶剂添加剂存在下产生均匀，光滑和结晶的缀合的聚合物薄膜。我们证明，具有高沸点和溶解度参数的溶剂添加剂类似于溶液的溶解度，影响溶剂蒸发速率并改善了浸涂聚合物薄膜的结晶度。用于加入溶剂的方法强烈影响溶剂添加剂的扩散到聚合物溶液中的影响，这影响了所得薄膜形态。聚合物膜的结晶度和形态与电特性相关，并且当从溶剂混合物中加工时，最晶体膜显示出0.0391cm（2）V-1s（-1）的高孔场效液迁移率，而无需后 - 治疗。我们的研究结果提供了可靠和有前途的有机薄膜晶体管技术的发展方向。

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  • 来源
    《RSC Advances》 |2019年第11期|共7页
  • 作者

    Kwon Eun Hye; Jang Young Jin; Kim Gun Woo; Kim Min; Park Yeong Don;

  • 作者单位

    Incheon Natl Univ Dept Energy &

    Chem Engn Incheon 22012 South Korea;

    Incheon Natl Univ Dept Energy &

    Chem Engn Incheon 22012 South Korea;

    Incheon Natl Univ Innovat Ctr Engn Incheon 22012 South Korea;

    Ist Italiano Tecnol Ctr Nano Sci &

    Technol Polimi Via Giovanni Pascoli 70-3 I-20133 Milan Italy;

    Incheon Natl Univ Dept Energy &

    Chem Engn Incheon 22012 South Korea;

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  • 正文语种 eng
  • 中图分类 化学;
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