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Monitoring the Effects of Illumination on the Structure of Conjugated Polymer Gels Using Neutron Scattering
Published on: December 21, 2017
Record high hole mobility in polymer semiconductors via side-chain engineering
Il Kang1, Hui-Jun Yun, Dae Sung Chung
1School of Materials Science and Engineering & REGET, Gyeongsang National University , Jinju 660-701, South Korea.
Journal of the American Chemical Society
|September 24, 2013
Summary
Researchers enhanced charge carrier mobility in organic electronics by engineering polymer side chains. This breakthrough achieved record high hole mobility, paving the way for practical organic electronic devices.
Area of Science:
- Materials Science
- Organic Electronics
- Polymer Chemistry
Background:
- Charge carrier mobility is a critical bottleneck for the widespread adoption of organic electronics.
- Developing high-performance organic semiconductor materials is essential for advancing the field.
Purpose of the Study:
- To investigate the impact of side-chain engineering on charge carrier mobility in polymer semiconductors.
- To develop novel polymer structures for enhanced intermolecular electronic communication and device performance.
Main Methods:
- Synthesis of two new polymers, P-29-DPPDBTE and P-29-DPPDTSE, featuring a diketopyrrolopyrrole backbone.
- Modification of side-chain structure by adjusting branching position.
- Photophysical and structural characterization of the synthesized polymers.
- Fabrication and testing of organic electronic devices.
Main Results:
- Achieved record high hole mobility of 12 cm(2)/(V·s) in the new polymers.
- Demonstrated that adjusting side-chain branching position enhances intermolecular interactions and reduces π-π stacking distances.
- Maintained polymer solubility despite structural modifications.
Conclusions:
- Smart side-chain engineering is an effective strategy to improve charge carrier mobility in organic semiconductors.
- The developed polymers show significant potential for high-performance organic electronic applications.
- High hole mobility is achievable at room temperature in devices fabricated with these engineered polymers.
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