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Full-Text Articles in Condensed Matter Physics
Low-Dimensional Materials For Organic Electronic Applications, Sumit Beniwal
Low-Dimensional Materials For Organic Electronic Applications, Sumit Beniwal
Department of Physics and Astronomy: Dissertations, Theses, and Student Research
This thesis explores the self-assembly, surface interactions and electronic properties of functional molecules that have potential applications in electronics. Three classes of molecules - organic ferroelectric, spin-crossover complex, and molecules that assemble into a 2D semiconductor, have been studied through scanning tunneling microscopy and surfacesensitive spectroscopic methods. The scientific goal of this thesis is to understand the self-assembly of these molecules in low-dimensional (2D) configurations and the influence of substrate on their properties. First, a H-bonded organic ferroelectric, the 3-Hydroxyphenalenone, is studied on two noble metal substrates. It is demonstrated how a variety of different assemblies including 1D chains, p-p …
First-Principles Studies Of Group Iv And Group V Related Two Dimensional Materials, Gaoxue Wang
First-Principles Studies Of Group Iv And Group V Related Two Dimensional Materials, Gaoxue Wang
Dissertations, Master's Theses and Master's Reports
Two dimensional (2D) materials have been extensively studied due to their novel properties and technologically important applications. Especially, the discovery of graphene has stimulated an avalanche of investigations to exploit its novel properties for applications at nanoscale. In the post-silicon era, graphene has been widely regarded as the most promising building blocks for the electronic devices. However, its metallic nature together with sensitivity to the environment leads to somewhat limited scope of applications. A finite band gap in a material is known to be essential for the fabrication of devices such as transistors. Such a limitation associated with graphene has …