title: Stable p-type conduction from Sb-decorated head-to-head basal plane inversion domain boundaries in ZnO nanowires.
abstract: We report that Sb-decorated head-to-head (H-H) basal plane inversion domain boundaries (b-IDBs) lead to stable p-type conduction in Sb-doped ZnO nanowires (NWs) due to Sb and O codoping. Aberration-corrected Z-contrast scanning transmission electron microscopy shows that all of the Sb in the NWs is incorporated into H-H b-IDBs just under the (0001) NW growth surfaces and the (0001) bottom facets of interior voids. Density functional theory calculations show that the extra basal plane of O per H-H b-IDB makes them electron acceptors. NWs containing these defects exhibited stable p-type behavior in a single NW FET over 18 months. This new mechanism for p-type conduction in ZnO offers the potential of ZnO NW based p-n homojunction devices.
authors.affiliation: Department of Material Science and Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA.
authors.forename: Andrew B
authors.initials: AB
authors.lastname: Yankovich
authors.forename: Brian
authors.initials: B
authors.lastname: Puchala
authors.forename: Fei
authors.initials: F
authors.lastname: Wang
authors.forename: Jung-Hun
authors.initials: JH
authors.lastname: Seo
authors.forename: Dane
authors.initials: D
authors.lastname: Morgan
authors.forename: Xudong
authors.initials: X
authors.lastname: Wang
authors.forename: Zhenqiang
authors.initials: Z
authors.lastname: Ma
authors.forename: Alex V
authors.initials: AV
authors.lastname: Kvit
authors.forename: Paul M
authors.initials: PM
authors.lastname: Voyles
mesh_terms: D000965:Antimony / Q000737:chemistry*; D004553:Electric Conductivity; D004867:Equipment Design; D019544:Equipment Failure Analysis; D008422:Materials Testing; D008968:Molecular Conformation; D043942:Nanotubes / Q000737:chemistry* / Q000648:ultrastructure*; D010316:Particle Size; D012666:Semiconductors; D014173:Transistors, Electronic; D015034:Zinc Oxide / Q000737:chemistry*
chemical_list: D000965:Antimony; D015034:Zinc Oxide