title: Highly integrated synthesis of heterogeneous nanostructures on nanowire heater array.
abstract: We have proposed a new method for the multiplexed synthesis of heterogeneous nanostructures using a top-down fabricated nanowire heater array. Hydrothermally synthesized nanostructures can be grown only on the heated nanowire through nanoscale temperature control using a Joule heated nanowire. We have demonstrated the selective synthesis of zinc oxide (ZnO) nanowires and copper oxide (CuO) nanostructures, as well as their surface modification with noble metal nanoparticles, using a nanowire heater array. Furthermore, we could fabricate an array of heterogeneous nanostructures via Joule heating of individual nanowire heaters and changing of the precursor solutions in a sequential manner. We have formed a parallel array of palladium (Pd) coated ZnO nanowires and gold (Au) coated ZnO nanowires, as well as a parallel array of ZnO nanowires and CuO nanospikes, in the microscale region by using the developed method.
authors.affiliation: Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 305-701, Korea. inkyu@kaist.ac.kr.
authors.forename: Chun Yan
authors.initials: CY
authors.lastname: Jin
authors.forename: Jeonghoon
authors.initials: J
authors.lastname: Yun
authors.forename: Jung
authors.initials: J
authors.lastname: Kim
authors.forename: Daejong
authors.initials: D
authors.lastname: Yang
authors.forename: Dong Hwan
authors.initials: DH
authors.lastname: Kim
authors.forename: Jae Hyuk
authors.initials: JH
authors.lastname: Ahn
authors.forename: Kwang-Cheol
authors.initials: KC
authors.lastname: Lee
authors.forename: Inkyu
authors.initials: I
authors.lastname: Park