Organic light-emitting diodes

The goal of the SULI project will be to model and understand the physics underlying organic semiconductor light emitting devices (OLEDs) that are being fabricated within the Photonic Systems FWP. We will develop a novel Monte-Carlo approach to model the transport and recombination of holes and electrons in these devices, that results in the emission of light. Experimentally determined motilities of electrons and holes will be utilized. The Monte-Carlo approach will be utilized to understand recent observations of light emission at ultra-violet and blue wavelengths emitting species in OLEDS. We will simultaneously model the emission from OLEDs with rigorous optical simulations to correlate experimental observations of how the emission depends on OLED geometry.

The project will be closely tied to the Photonics FWP and measurements performed within Dr. J. Shinar's group. The student should have a rudimentary knowledge, or be able to learn quickly, the basics of Unix and scientific programming.

Mentor: Rana Biswas, Ames Laboratory scientist