Significant enhancement of the sensing characteristics of In2O3 nanowires by functionalization with Pt nanoparticles.
We report a significant enhancement in the gas sensing properties of In(2)O(3) nanowires by functionalizing their surfaces with Pt nanoparticles. For Pt-functionalization, In(2)O(3)-Pt core-shell nanowires are synthesized by the sputtering deposition of Pt layers on bare In(2)O(3) nanowires. Next, continuous Pt shell layers are transformed into Pt nanoparticles of cubic phase by heat treatment. In an O(2) gas sensing test, the Pt-functionalized In(2)O(3) nanowires reveal exceptionally higher sensitivity and faster response than bare In(2)O(3) nanowires.
Kim
Sang Sub
SS
Division of Materials Science and Engineering, Inha University, Incheon, Republic of Korea.
Park
Jae Young
JY
Choi
Sun-Woo
SW
Kim
Hyo Sung
HS
Na
Han Gil
HG
Yang
Ju Chan
JC
Kim
Hyoun Woo
HW