Electrical current suppression in Pd-doped vanadium pentoxide nanowires caused by reduction in PdO due to hydrogen exposure

Byung Hoon Kim; Soon-Young Oh; Hu Young Jeong; Han Young Yu; Yong Ju Yun; Yark Yeon Kim; Hong, Won G.; Jeong Yong Lee; Hae Jin Kim
April 2010
Applied Physics Letters;4/19/2010, Vol. 96 Issue 16, p163111
Academic Journal
Pd nanoparticle-doped vanadium pentoxide nanowires (Pd-VONs) were synthesized. Electrical current suppression was observed when the Pd-VON was exposed to hydrogen gas, which cannot be explained by the work function changes mentioned in previous report such as Pd-doped carbon nanotubes and SnO2 nanowires. Using the x-ray photoelectron spectroscopy, we found that the reduction in PdO due to hydrogen exposure plays an important role in the current suppression of the Pd-VON.


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