Control of Molecular Ordering, Alignment, and Charge Transport in Solution-Processed Conjugated Polymer Thin Films

Polymers

卷:9

Byoungnam Park¹  Elsa Reichmanis²  Mincheol Chang³  Gyun Taek Lim³ 

[1] Department of Materials Science and Engineering, Hongik University, Seoul 121-791, Korea;

[2] School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA;

[3] School of Polymer Science and Engineering, Chonnam National University, Gwangju 61186, Korea;

关键词: conjugated polymers;    morphologies;    charge transport;    self-assembly;    molecular ordering;    polymer chain alignment;    organic field-effect transistors;   

DOI  :  10.3390/polym9060212

来源: DOAJ

【 摘 要 】

Morphology of conjugated polymers is a critical factor that significantly affects intrinsic charge transport characteristics and in turn performance of polymer-based devices. Morphological defects including misaligned crystalline grains and grain boundaries significantly impede efficient charge hopping between transport sites, resulting in degradation of device performance. Therefore, one important challenge is to control morphology of active polymer thin-films for achieving high performance flexible electronic devices. In the past decade, significant progress has been achieved in morphology control of conjugated polymer thin-films using solution-based processing techniques. This review focuses on recent advances in processing strategies that can tune the morphologies and thus impact charge transport properties of conjugated polymer thin films. Of the available processing strategies, polymer solution treatments and film deposition techniques will be mainly highlighted. The correlation between processing conditions, active layer morphologies, and device performance will be also be discussed.

【 授权许可】

Unknown