title: Electronic durability of flexible transparent films from type-specific single-wall carbon nanotubes.
abstract: The coupling between mechanical flexibility and electronic performance is evaluated for thin films of metallic and semiconducting single-wall carbon nanotubes (SWCNTs) deposited on compliant supports. Percolated networks of type-purified SWCNTs are assembled as thin conducting coatings on elastic polymer substrates, and the sheet resistance is measured as a function of compression and cyclic strain through impedance spectroscopy. The wrinkling topography, microstructure and transparency of the films are independently characterized using optical microscopy, electron microscopy, and optical absorption spectroscopy. Thin films made from metallic SWCNTs show better durability as flexible transparent conductive coatings, which we attribute to a combination of superior mechanical performance and higher interfacial conductivity.
authors.affiliation: Department of Physics, Department of Coatings and Polymeric Materials, North Dakota State University, Fargo, North Dakota 58108, USA.
authors.forename: John M
authors.initials: JM
authors.lastname: Harris
authors.forename: Ganjigunte R Swathi
authors.initials: GR
authors.lastname: Iyer
authors.forename: Anna K
authors.initials: AK
authors.lastname: Bernhardt
authors.forename: Ji Yeon
authors.initials: JY
authors.lastname: Huh
authors.forename: Steven D
authors.initials: SD
authors.lastname: Hudson
authors.forename: Jeffrey A
authors.initials: JA
authors.lastname: Fagan
authors.forename: Erik K
authors.initials: EK
authors.lastname: Hobbie
mesh_terms: D003460:Crystallization / Q000379:methods*; D055119:Elastic Modulus; D004553:Electric Conductivity; D046911:Macromolecular Substances / Q000737:chemistry; D008422:Materials Testing; D008968:Molecular Conformation; D037742:Nanotubes, Carbon / Q000737:chemistry* / Q000648:ultrastructure*; D010316:Particle Size; D012031:Refractometry; D012666:Semiconductors; D013499:Surface Properties
chemical_list: D046911:Macromolecular Substances; D037742:Nanotubes, Carbon