Details

Autor(en) / Beteiligte

• Wu, Hung-Chin
• Nikzad, Shayla
• Zhu, Chenxin
• Yan, Hongping
• Li, Yang
• Niu, Weijun
• Matthews, James R
• Xu, Jie
• Matsuhisa, Naoji
• Arunachala, Prajwal Kammardi
• Rastak, Reza
• Linder, Christian
• Zheng, Yu-Qing
• Toney, Michael F
• He, Mingqian
• Bao, Zhenan

Titel

Highly stretchable polymer semiconductor thin films with multi-modal energy dissipation and high relative stretchability

Ist Teil von

• Nature communications, 2023-12, Vol.14 (1), p.8382-8382, Article 8382

Ort / Verlag

England: Nature Publishing Group

Erscheinungsjahr

2023

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Stretchable polymer semiconductors (PSCs) have seen great advancements alongside the development of soft electronics. But it remains a challenge to simultaneously achieve high charge carrier mobility and stretchability. Herein, we report the finding that stretchable PSC thin films (<100-nm-thick) with high stretchability tend to exhibit multi-modal energy dissipation mechanisms and have a large relative stretchability (rS) defined by the ratio of the entropic energy dissipation to the enthalpic energy dissipation under strain. They effectively recovered the original molecular ordering, as well as electrical performance, after strain was released. The highest rS value with a model polymer (P4) exhibited an average charge carrier mobility of 0.2 cm V s under 100% biaxial strain, while PSCs with low rS values showed irreversible morphology changes and rapid degradation of electrical performance under strain. These results suggest rS can be used as a parameter to compare the reliability and reversibility of stretchable PSC thin films.