Details

Autor(en) / Beteiligte

• He, Rongxiang
• Lv, Aifeng
• Jiang, Xingyu
• Cai, Chang
• Wang, Yazhou
• Yue, Wan
• Huang, Lizhen
• Yin, Xue‐Bo
• Chi, Lifeng

Titel

Organic Electrochemical Transistor Based on Hydrophobic Polymer Tuned by Ionic Gels

Ist Teil von

• Angewandte Chemie International Edition, 2023-09, Vol.62 (37), p.e202304549-n/a

Auflage

International ed. in English

Ort / Verlag

Germany: Wiley Subscription Services, Inc

Erscheinungsjahr

2023

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Hydrophobic conjugated polymers have poor ionic transport property, so hydrophilic side chains are often grafted for their application as organic electrochemical transistors (OECTs). However, this modification lowers their charge transport ability. Here, an ionic gel interfacial layer is applied to improve the ionic transport while retaining the charge transport ability of the polymers. By using the ionic gels comprising gel matrix and ionic liquids as the interfacial layers, the hydrophobic polymer achieves the OECT feature with high transconductance, low threshold voltage, high current on/off ratio, short switching time, and high operational stability. The working mechanism is also revealed. Moreover, the OECT performance can be tuned by varying the types and ratios of ionic gels. With the proposed ionic gel strategy, OECTs can be effectively realized with hydrophobic conjugated polymers. An ionic gel interfacial layer is applied to improve the ionic transport of the hydrophobic conjugated polymers in organic electrochemical transistors (OECTs). With this approach, hydrophobic conjugated polymers could be used directly, while the types and ratios of gel matrix and ionic liquids in the ionic gels could be tuned to achieve optimal OECT properties for improved performance.