Enhancing stability of doped semiconductor polymers with cytop protective layers: An examination of electrical property retention

Doping is a critical method for enhancing the electrical properties of semiconducting polymers, with ongoing innovations in dopant molecules and doping techniques. However, introducing dopants can disrupt the conjugated backbone of polymers like poly[(2,5-bis(3-tetradecylthiophen-2-yl)thieno[3,2-b]t...

Full description

Saved in:
Bibliographic Details
Published in:Journal of polymer research 2024-10, Vol.31 (10), Article 298
Main Authors: Ma, Haibao, Chen, Chen, Yue, Baiqiao, Lu, Kaiqing, Lin, Yue
Format: Article
Language:English
Subjects:
Amorphous materials
Barrier layers
Characterization and Evaluation of Materials
Chemistry
Chemistry and Materials Science
Degradation
Dopants
Doped films
Doping
Electrical properties
Fluorine
Industrial Chemistry/Chemical Engineering
Ion exchange
Original Paper
Polymer films
Polymer Sciences
Polymers
Stability
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Doping is a critical method for enhancing the electrical properties of semiconducting polymers, with ongoing innovations in dopant molecules and doping techniques. However, introducing dopants can disrupt the conjugated backbone of polymers like poly[(2,5-bis(3-tetradecylthiophen-2-yl)thieno[3,2-b]thiophene)] (PBTTT) and indendithiophene-benzothiadiazole (IDTBT), accelerating the degradation of electronic properties, particularly under air exposure. Cytop, as a cross-linked fluorine-rich polymer material, can form amorphous, smooth hydrophobic surfaces that are isolated from air. However, there is a lack of research on Cytop to inhibit the degradation of electrical properties of polymers in air. This study employed ion-exchange and immersion doping techniques on these polymers and explored the protective effects of the crosslinked polymer Cytop as a barrier layer. We measured the electrical properties of doped films both with and without the Cytop layer under various conditions to determine its impact on the polymers' stability. The findings demonstrate that Cytop significantly enhances the films' stability, offering insights into the long-term performance and reliability of doped semiconducting polymers.
ISSN:1022-9760
1572-8935
DOI:10.1007/s10965-024-04140-y