Journal
NATURE MATERIALS
Volume 12, Issue 7, Pages 665-671Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/NMAT3650
Keywords
-
Categories
Funding
- Department of Energy, Laboratory Directed Research and Development [DE-AC02-76SF00515]
- National Science Scholarship from the Agency for Science, Technology and Research (AstarSTAR), Singapore
- National Science Foundation DMR-Solid State Chemistry [DMR-0705687-002]
- National Science Foundation of China [NSFC 51133002]
- Center for Advanced Molecular Photovoltaics by King Abdullah University of Science and Technology [KUS-C1-015-21]
- National Science Foundation Graduate Research Fellowship Program
- Toshiba through the Stanford CIS-FMA programme
- ILJU foundation in South Korea
Ask authors/readers for more resources
Solution coating of organic semiconductors offers great potential for achieving low-cost manufacturing of large-area and flexible electronics. However, the rapid coating speed needed for industrial-scale production poses challenges to the control of thin-film morphology. Here, we report an approach-termed fluid-enhanced crystal engineering (FLUENCE)-that allows for a high degree of morphological control of solution-printed thin films. We designed a micropillar-patterned printing blade to induce recirculation in the ink for enhancing crystal growth, and engineered the curvature of the ink meniscus to control crystal nucleation. Using FLUENCE, we demonstrate the fast coating and patterning of millimetre-wide, centimetre-long, highly aligned single-crystalline organic semiconductor thin films. In particular, we fabricated thin films of 6,13-bis(triisopropylsilylethynyl) pentacene having non-equilibrium single-crystalline domains and an unprecedented average and maximum mobilities of 8.1 +/- 1.2 cm(2) V-1 s(-1) and 11 cm(2) V-1 s(-1). FLUENCE of organic semiconductors with non-equilibrium single-crystalline domains may find use in the fabrication of high-performance, large-area printed electronics.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available