Stretchable Polymer Semiconductors
Abstract
Flexible organic electronics (e.g. solar cells, light-emitting diodes and field-effect transistors) have attracted considerable attention over the past decade. Stretchable electronics represent a new form factor for optoelectronic devices that are made of intrinsically elastic materials so that they are foldable, twistable, and stretchable while maintaining electronic performance, structural integrity and device durability. Incorporated into devices, properly designed stretchable materials may result in more robust devices under bending and strain compared to flexible but not stretchable materials. For intrinsically stretchable electronics, it is desirable to have intrinsically stretchable materials, ranging from stretchable conductors, stretchable dielectrics to stretchable semiconductors. The proposed research will result in a better understanding of molecular design rules for stretchable polymer semiconductors. 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. Therefore, the goal for this project is to develop materials chemistry and understanding to enable intrinsically stretchable electronic devices. In this project, we focus on stretchable semiconductor development. During the current project, we found remaining gaps in fundamental knowledge that need to be addressed. In this project, we would like to further understand the molecular design rules in order to develop a universal parameter that allows us to compare the stretchability of polymer semiconductors without the effects from substrate (i.e. adhesion and modulus) and thin film dimensions. Additionally, we propose chemistry for patterning stretchable semiconductor for realizing fully-stretchable transistor arrays and circuits. Finally, we propose a novel design of deformable conjugated polymer.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Mar 07, 2023
- Source ID
- FA95502110413
Entities
People
- Zhenan Bao
Organizations
- Air Force Office of Scientific Research
- Stanford University
- United States Air Force