Controlling Electronic Connectivity in Nanoscale Systems
Presented By Natalia Gadjieva
Superconductivity in doped polyaromatic hydrocarbons is promising, with reports that hint at superconductivity up to 120 K in p-terphenyl. Unfortunately, the superconducting fraction is quite low, and no structural data is reported for this phase. We introduce a novel approach to study the structure-function relationship in alkali-doped p-terphenyl. All known alkali-doped PAH superconductors are synthesized through solid-state synthesis to produce the superconducting phase, which forgoes the ability to study the material's molecular structure. Our main goal is to create a method that reliably yields crystalline samples that can be fully characterized, both structurally and property-wise. A mild doping approach combined with a chelating agent to capture the alkali cation results in reproducible crystalline samples, each with varying degrees of promise for future superconductive applications. The building blocks can be modulated to produce phase pure materials with various levels of doped p-terphenyl.