Research
Projects and Techniques
Supercritical Fluid Film Deposition
The properties of organic semiconductor films are strongly dependent upon their chemical purity and nanoscale morphology. We are developing a unique method for depositing high quality organic semiconductor films from solutions at high temperatures and pressures, very near their critical point. Pictured at the left is a drawing of our customized pressure chamber. (Drawing courtesy of Mikayla Louie)
Infrared Spectroscopy of Operating Organic Semiconductor Devices
Organic transistors provide a platform for low-cost printed integrated circuitry. Clarifying the mechanism of carrier transport will improve the design of high performance materials. In-situ infrared experiments provide insight into the role of morphological heterogeneity as a factor limiting the rate of carrier movement.
Data in the figure reproduced from the following publication
Kaake, L.G.; Barbara, P.F.; Zhu, X.Y. Intrinsic Charge Trapping in Organic and Polymeric Semiconductors: A Physical Chemistry PerspectiveJ. Phys. Chem. Lett. 2010, 1, 628-635.