title: Synthesis of long indium nitride nanowires with uniform diameters in large quantities.
abstract: Large quantities of indium nitride (InN) nanowires are synthesized by the in situ nitriding of indium oxide (In(2)O(3)) powders in an ammonia (NH(3)) flux. Tens of milligrams of nanowires are obtained in one batch. Every 100 mg of In(2)O(3) starting powder can produce up to 65 mg of InN nanowires under the optimized conditions. The synthesized nanowires grow along the [001] direction with excellent crystallinity. They are of high purity and are 30-50 microm in length with an almost uniform diameter of about 100 nm. Photoluminescence measurements of the nanowires exhibit a strong peak at 707 nm. An optical bandgap of about 1.7 eV is estimated based on the absorption spectrum. The experimental results also demonstrate that the approach of nitriding In(2)O(3) powders in situ is feasible for the synthesis of high-purity InN nanowires in large quantities, with good reproducibility and without catalyst materials. The synthesis of InN nanowires in large quantities would be of benefit to the further study and understanding of their intrinsic properties, as well as being advantageous for their potential application in nanodevices.
authors.affiliation: Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, PR China.
authors.forename: Shudong
authors.initials: S
authors.lastname: Luo
authors.forename: Weiya
authors.initials: W
authors.lastname: Zhou
authors.forename: Zengxing
authors.initials: Z
authors.lastname: Zhang
authors.forename: Lifeng
authors.initials: L
authors.lastname: Liu
authors.forename: Xinyuan
authors.initials: X
authors.lastname: Dou
authors.forename: Jianxiong
authors.initials: J
authors.lastname: Wang
authors.forename: Xiaowei
authors.initials: X
authors.lastname: Zhao
authors.forename: Dongfang
authors.initials: D
authors.lastname: Liu
authors.forename: Yan
authors.initials: Y
authors.lastname: Gao
authors.forename: Li
authors.initials: L
authors.lastname: Song
authors.forename: Yanjuan
authors.initials: Y
authors.lastname: Xiang
authors.forename: Jianjun
authors.initials: J
authors.lastname: Zhou
authors.forename: Sishen
authors.initials: S
authors.lastname: Xie
mesh_terms: D007204:Indium / Q000737:chemistry*; D008027:Light; D008855:Microscopy, Electron, Scanning; D046529:Microscopy, Electron, Transmission; D008956:Models, Chemical; D049329:Nanostructures; D036103:Nanotechnology / Q000379:methods*; D043942:Nanotubes; D053770:Nanowires / Q000737:chemistry*; D011208:Powders; D012666:Semiconductors; D013053:Spectrophotometry; D013499:Surface Properties; D013696:Temperature; D014961:X-Ray Diffraction
chemical_list: D011208:Powders; D007204:Indium; C513701:indium nitride