Morphology, luminescence, and electrical resistance response to H 2 and CO gas exposure of porous InP membranes prepared by electrochemistry in a neutral electrolyte Article

Volciuc, O, Monaico, E, Enachi, M et al. (2010). Morphology, luminescence, and electrical resistance response to H 2 and CO gas exposure of porous InP membranes prepared by electrochemistry in a neutral electrolyte . APPLIED SURFACE SCIENCE, 257(3), 827-831. 10.1016/j.apsusc.2010.07.074

cited authors

  • Volciuc, O; Monaico, E; Enachi, M; Ursaki, VV; Pavlidis, D; Popa, V; Tiginyanu, IM

abstract

  • Porous InP membranes have been prepared by anodization of InP wafers with electron concentration of 1 × 10 17 cm -3 and 1 × 10 18 cm -3 in a neutral NaCl electrolyte. The internal surfaces of pores in some membranes were modified by electrochemical deposition of gold in a pulsed voltage regime. Photoluminescence and photosensitivity measurements indicate efficient light trapping and porous surface passivation. The photoluminescence and electrical resistivity of the membranes are sensitive to the adsorption of H 2 and CO gas molecules. These properties are also influenced by the deposition of Au nanoparticles inside the pores. © 2010 Elsevier B.V. All rights reserved.

publication date

  • November 15, 2010

published in

Digital Object Identifier (DOI)

start page

  • 827

end page

  • 831

volume

  • 257

issue

  • 3