Highlights
Mar 13, 2012
University of Nebraska - Lincoln
Organic Molecular Layers for Efficient Charge Injection
Peter A. Dowben, Axel Enders (Nebraska MRSEC); Luis Rosa (University of Puerto Rico - Humacao); Julian Velev (University of Puerto Rico - Río Piedras)
High conductivity and efficient charge injection into organic layers could lead to the design of more efficient organic solar cells and molecular electronics, especially light emitting diodes. Most organic materials are however insulators and only few exhibit high conducting properties. Nebraska MRSEC researchers in collaboration with their colleagues at University of Puerto Rico have discovered that zwitterion molecules of the p-benzoquinonemonoimine type are different from being a standard insulator.
Mar 12, 2012
University of Nebraska - Lincoln
Enhanced Ferroelectric Stability by Interface Engineering
A. Gruverman and E. Y. Tsymbal (Nebraska MRSEC); C.-B. Eom (University of Wisconsin); X. Pan (University of Michigan)
Ferroelectric materials are characterized by a spontaneous polarization that can be switched by external electric field. This property is important for various technological applications such ferroelectric random access memories. However, when ferroelectric film thickness is reduced down to a nanoscale the ferroelectric polarization may become unstable due to strong depolarization fields and interface effects.
Mar 12, 2012
Ohio State University
Gating Individual Dopants with an Individual Defect in Semiconductors
One factor limiting the scaling and
reproducibility of device elements in computer processors is the random
distribution of dopants in semiconductor nanostructures. To overcome this
obstacle for faster computing, new ways to position and address individual
dopants are needed. Proposals for next-generation computing based on quantum
variables such as electron spin also require the ability to address and control
interactions between individual atoms.
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