Dresden 2017 – scientific programme

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MM: Fachverband Metall- und Materialphysik

MM 17: Functional Materials I

MM 17.2: Talk

Monday, March 20, 2017, 16:00–16:15, IFW D

Fabrications of Nanoporous Film and Nanowire Arrays with High Gas-Sensing Performances — •Shipu Xu, Huaping Zhao, Rui Xu, Liaoyong Wen, and Yong Lei — Institute of Physics & Institute of Micro- and Nanotechnologies (ZIK MacroNano), Ilmenau University of Technology, 98693 Ilmenau, Germany

Gas sensing has an important effect on many aspects in our society, and has gained much progress by nanostructuring materials. Herein, nanoporous film and nanowire arrays were respectively fabricated on the device substrate and directly used as the sensing platform. Different kinds of N- and P-type sensing materials (e. g., SnO2, Fe2O3 and NiO) were independent or composited with graphene to serve as functional materials. Given by the intrinsic advantages of nanostructuring (e. g., large specific area and rich active sites), as-prepared sensors had exhibited high-sensitive and rapid sensing response in the ambient atmosphere even at room temperature. Furthermore, the pristine sensing property could be manipulated by their nanostructures, such as surface pore size of porous film or the length of nanowire arrays, to meet the requirements of the practical applications. Obviously, the way to improve and manipulate the sensing property that based on the nanostructuring (e. g., nanoporous film and nanowire arrays) enables the feasibility of next-generation gas-sensor.