Material Chemistry of Semiconductors Towards Stretchable Electronics
Abstract
In this project, we will advance our understanding on molecular design concepts for intrinsically stretchable polymer semiconductors. We will gain understanding on using nanoconfinement approach to develop high-performance and photo-patternable stretchable n-type polymer semiconductors. Additionally, we will develop fundamental understanding on tuning electronic, optical and mechanical properties of conjugated oligomers and polymers containing novel spring-like deformable units. In all cases, the materials will be fully characterized under various strain conditions together with the corresponding microstructures, electrical and mechanical behaviors. With the promising semiconducting materials and patterning method we develop from the above studies, we will proceed to fabricate fully stretchable transistor arrays and the first CMOS circuit blocks. This will not only allow us to test the stretchable semiconductors we develop in practical setting and evaluate their behavior under various strain levels, but also will allow us to understand advanced requirements for intrinsic stretchable semiconductors as active materials for circuits, sensors and displays. The results will be used to feedback to the further improvements of the materials. Additionally, the molecular spring concept offers a completely new direction for intrinsically stretchable polymer semiconductor design and may potentially generate a new class of chiral optical material. The proposed research will result in a better understanding of molecular design rules for stretchable polymer semiconductors. This project will develop materials chemistry and understanding to enable intrinsically stretchable electronic devices. The realization of these materials will result in fully solution processed devices, improved form factor for organic devices, increased robustness and potentially new applications in wearable electronics. During the project period, the PI and students will make visits to Air Force Research Lab to better understand defense needs and applications so that the materials developed will better align with defense future needs.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Feb 06, 2025
- Source ID
- FA95502510008
Entities
People
- Zhenan Bao
Organizations
- Air Force Office of Scientific Research
- Stanford University
- United States Air Force