Melt-Processing of Complementary Semiconducting Polymer Blends for High Performance Organic Transistors.

Area of Science:

• Materials Science
• Organic Electronics
• Semiconductor Physics

Background:

• Organic field-effect transistors (OFETs) are crucial for flexible electronics.
• Melt-processing offers a scalable and cost-effective fabrication method for OFETs.
• Achieving high charge carrier mobility and current on/off ratios in melt-processed OFETs remains a challenge.

Purpose of the Study:

• To investigate the melt-processing of complementary semiconducting polymer blends for OFET applications.
• To achieve record performance metrics in melt-processed OFETs.

Main Methods:

• Fabrication of OFETs using complementary semiconducting polymer blends via melt-processing.
• Characterization of device performance, including charge carrier mobility and current on/off ratios.

Main Results:

• Achieved an average charge carrier mobility of 0.4 cm² V^-1 s^-1.
• Demonstrated current on/off ratios exceeding 10⁵.
• Established a new record performance for melt-processed organic field-effect transistors.

Conclusions:

• Melt-processing of complementary semiconducting polymer blends is a viable route to high-performance OFETs.
• The achieved performance metrics surpass previous records for melt-processed OFETs.
• This work paves the way for scalable and efficient manufacturing of organic electronic devices.