Mixed-flow design for microfluidic printing of two-component polymer semiconductor systems
Abstract
Blade coating is a promising methodology for the large-scale printing of polymer electronics, affording nonnegligible microstructure control and properties enhancement. Nevertheless, in two-component systems, the optical/electrical/physical properties are largely dominated by phase separation and domain purity phenomena that are challenging to control. Here, we report a mixed-flow microfluidic printing approach to phase purity control, enabled by a printing blade design based on fluid flow simulations. The result is 50% efficiency enhancement for printed all-polymer solar cells vs. conventional printing and similar enhancements for polymer transistors. Mixed flow is a versatile approach to control domain purity in two-component polymeric semiconductor systems and offers a methodology for printing high-performance soft-matter electronics.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jul 09, 2020
- Source ID
- 10.1073/pnas.2000398117
Entities
People
- Antonio Facchetti
- Binghao Wang
- Dean M. DeLongchamp
- Dengke Shen
- Ding Zheng
- Ferdinand S Melkonyan
- Gang Wang
- J. Fraser. Stoddart
- Jinhui Yan
- Joseph W Strzalka
- Liang-Wen Feng
- Simone Fabiano
- Subhrangsu Mukherjee
- Tobin J. Marks
- Wei Huang
- Yao Chen
- Zhu Meifang
Organizations
- Air Force Office of Scientific Research
- Argonne National Laboratory
- Division of Materials Research
- Donghua University
- E-Institutes of Shanghai Municipal Education Commission
- Formas
- Linköping University
- National Institute of Standards and Technology
- National Nanotechnology Initiative
- National Natural Science Foundation of China
- Natural Science Foundation of Shanghai
- Northwestern University
- Office of Naval Research
- Swedish Governmental Agency for Innovation Systems
- United States Department of Commerce
- United States Department of Energy
- University of Illinois Urbana–Champaign