title: Luminance behavior of lithium-doped ZnO nanowires with p-type conduction characteristics.
abstract: The present study describes the room-temperature cathodeluminescence (CL) and temperature-dependent photoluminescence (PL) properties of p-type lithium (Li)-doped zinc oxide (ZnO) nanowires (NWs) grown by hydrothermal doping and post-annealing processes. A ZnO thin film was used as a seed layer in NW growth. The emission wavelengths and intensities of undoped ZnO NWs and p-type Li-doped ZnO NWs were analyzed for comparison. CL and PL observations of post-annealed p-type Li-doped ZnO NWs clearly exhibited a dominant sharp band-edge emission. Finally, a n-type ZnO thin film/p-type annealed Li-doped ZnO NW homojunction diode was prepared to confirm the p-type conduction of annealed Li-doped ZnO NWs as well as the structural properties measured by transmission electron microscopy.
authors.affiliation: Novel Functional Materials and Device Laboratory, Department of Physics, Research Institute for Natural Science, Hanyang University, Seoul 133-791, Korea.
authors.forename: Won Bae
authors.initials: WB
authors.lastname: Ko
authors.forename: Jun Seok
authors.initials: JS
authors.lastname: Lee
authors.forename: Sang Hyo
authors.initials: SH
authors.lastname: Lee
authors.forename: Seung Nam
authors.initials: SN
authors.lastname: Cha
authors.forename: Jung Inn
authors.initials: JI
authors.lastname: Sohn
authors.forename: Jong Min
authors.initials: JM
authors.lastname: Kim
authors.forename: Young Jun
authors.initials: YJ
authors.lastname: Park
authors.forename: Hyun Jung
authors.initials: HJ
authors.lastname: Kim
authors.forename: Jin Pyo
authors.initials: JP
authors.lastname: Hong