title: Multicolor silicon light-emitting diodes (SiLEDs).
abstract: We present highly efficient electroluminescent devices using size-separated silicon nanocrystals (ncSi) as light emitting material. The emission color can be tuned from the deep red down to the yellow-orange spectral region by using very monodisperse size-separated nanoparticles. High external quantum efficiencies up to 1.1% as well as low turn-on voltages are obtained for red emitters. In addition, we demonstrate that size-separation of ncSi leads to drastically improved lifetimes of the devices and much less sensitivity of the emission wavelength to the applied drive voltage.
authors: Light Technology Institute (LTI) and DFG Center for Functional Nanostructures, Karlsruhe Institute of Technology (KIT), Kaiserstrasse 12, 76131 Karlsruhe, Germany. Florian.Maier-Flaig@kit.edu
authors: Florian
authors: F
authors: Maier-Flaig
authors: Julia
authors: J
authors: Rinck
authors: Moritz
authors: M
authors: Stephan
authors: Tobias
authors: T
authors: Bocksrocker
authors: Michael
authors: M
authors: Bruns
authors: Christian
authors: C
authors: Kübel
authors: Annie K
authors: AK
authors: Powell
authors: Geoffrey A
authors: GA
authors: Ozin
authors: Uli
authors: U
authors: Lemmer