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Merck

V-groove SnO2 nanowire sensors: fabrication and Pt-nanoparticle decoration.

Nanotechnology (2012-12-15)
Gun-Joo Sun, Sun-Woo Choi, Sung-Hyun Jung, Akash Katoch, Sang Sub Kim
要旨

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.

材料
製品番号
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製品内容

Sigma-Aldrich
酸化スズ(IV), nanopowder, ≤100 nm avg. part. size
Sigma-Aldrich
酸化スズ(IV), ≥99.99% trace metals basis
Sigma-Aldrich
酸化スズ(IV), −325 mesh, 99.9% trace metals basis