School of Materials Science and Engineering, Inha University, Incheon 402-751, Republic of Korea.
Nanotechnology. 2013 Jan 18;24(2):025504. doi: 10.1088/0957-4484/24/2/025504. Epub 2012 Dec 13.
Networked SnO(2) nanowire sensors were achieved using the selective growth of SnO(2) nanowires and their tangling ability, particularly on on-chip V-groove structures, in an effort to overcome the disadvantages imposed on the conventional trench-structured SnO(2) nanowire sensors. The sensing performance of the V-groove-structured SnO(2) nanowire sensors was highly dependent on the geometrical dimension of the groove, being superior to those of their conventional trench-structured counterparts. Pt nanoparticles were decorated on the surface of the networked SnO(2) nanowires via γ-ray radiolysis to enhance the sensing performances of the V-groove sensors whose V-groove widths had been optimized. The V-groove-structured Pt-nanoparticle-decorated SnO(2) nanowire sensors exhibited outstanding and reliable sensing capabilities towards toluene and nitrogen dioxide gases, indicating their potential for use as a platform for chemical gas sensors.
采用 SnO(2)纳米线的选择性生长及其缠结能力，在片上 V 型槽结构上实现了网络化 SnO(2)纳米线传感器，以克服传统沟槽结构 SnO(2)纳米线传感器的缺点。V 型槽结构 SnO(2)纳米线传感器的传感性能高度依赖于槽的几何尺寸，优于其传统沟槽结构的对应物。通过 γ 射线辐射分解在网络化 SnO(2)纳米线表面上修饰 Pt 纳米粒子，以增强 V 型槽传感器的传感性能，这些传感器的 V 型槽宽度已得到优化。V 型槽结构的 Pt 纳米粒子修饰 SnO(2)纳米线传感器对甲苯和二氧化氮气体表现出出色且可靠的传感能力，表明它们有望用作化学气体传感器的平台。
