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Published on: May 15, 2017
All-solution-processed transparent thin film transistor and its application to liquid crystals driving
Kwang-Ho Lee1, Sang-Mook Kim, Huisu Jeong
1School of Materials Science and Engineering, Department of Nanobio Materials and Electronics, Gwangju Institute of Science and Technology (GIST), 123 Cheomdan-gwagiro (Oryong-dong), Buk-gu, Gwangju 500-712, Republic of Korea.
Advanced Materials (Deerfield Beach, Fla.)
|April 23, 2013
Summary
All-solution-processed transparent thin film transistors (TTFTs) were created using printable silver electrodes. These TTFTs successfully operated liquid crystal cells, showcasing a viable vacuum-free fabrication method.
Area of Science:
- Materials Science
- Electronics Engineering
- Optoelectronics
Background:
- Transparent thin film transistors (TTFTs) are crucial for flexible displays and smart windows.
- Traditional fabrication methods often require expensive and energy-intensive high vacuum systems.
- Developing solution-processed alternatives is key for cost-effective and large-scale manufacturing.
Purpose of the Study:
- To demonstrate all-solution-processed TTFTs with printable silver grid electrodes.
- To evaluate the optical and electrical properties of the silver grid electrodes.
- To confirm the functionality of TTFTs in driving liquid crystal cells.
Main Methods:
- Fabrication of silver grid source/drain electrodes using printing and silver nanoparticle solution coating.
- Characterization of electrode transmittance, electrical conductance, and mechanical strength.
- Integration of TTFTs with liquid crystal cells to test switching operations.
Main Results:
- Successful fabrication of TTFTs using a continuous, vacuum-free process.
- Silver grid electrodes exhibited good visible light transmittance, moderate conductivity, and adequate mechanical robustness.
- TTFTs effectively drove liquid crystal cells, demonstrating successful switching functionality.
Conclusions:
- All-solution processing offers a promising route for manufacturing TTFTs.
- Printable silver electrodes are suitable for TTFT applications, balancing performance and process simplicity.
- The developed TTFTs show potential for integration into display and optoelectronic systems.
