Journal
PHYSICAL REVIEW LETTERS
Volume 107, Issue 1, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.107.016103
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Funding
- Kempestiftelserna
- Carl Tryggers Stiftelse
- Swedish Research Council (VR)
- Royal Swedish Academy of Sciences through Knut and Alice Wallenberg Foundation
- Office of Basic Energy Sciences of the U.S. Department of Energy
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The dynamics of doping transformation fronts in organic semiconductor plasma is studied for application in light-emitting electrochemical cells. We show that new fundamental effects of the plasma dynamics can significantly improve the device performance. We obtain an electrodynamic instability, which distorts the doping fronts and increases the transformation rate considerably. We explain the physical mechanism of the instability, develop theory, provide experimental evidence, perform numerical simulations, and demonstrate how the instability strength may be amplified technologically. The electrodynamic plasma instability obtained also shows interesting similarity to the hydrodynamic Darrieus-Landau instability in combustion, laser ablation, and astrophysics.
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