Characterization of Carbon Nanotube Purity Using a Quartz Sensor Platform
Stephanie A. Hooker, Ryan Schilt, Natalia Varaksa, John H. Lehman, Paul Rice
Carbon nanotubes are revolutionary materials, with properties that are vastly different than any other bulk form of carbon. Their unique combination of electrical, mechanical, and thermal properties makes them attractive for applications in advanced structures, biomedical devices, and next-generation electronics, among many others. However, properties can differ considerably depending on certain material characteristics (e.g., diameter and chirality). The situation is further complicated by the fact that most routes for nanotube growth do not produce just one species, but instead generate a mixture along with chemical impurities. As a result, nanotube characterization remains a critical issue for manufacturers, product developers, regulatory agencies, and biologists investigating health and safety risks.