Focused ion beam generated antimony nanowires for microscale pH sensors

Abstract

Articles you may be interested inFlexible pH sensors based on polysilicon thin film transistors and ZnO nanowalls Appl. Phys. Lett. 105, 093501 (2014); 10.1063/1.4894805 Indium arsenide nanowire field-effect transistors for pH and biological sensing Appl. Phys. Lett. A pH sensor with a double-gate silicon nanowire field-effect transistor Appl. Phys. Lett. 102, 083701 (2013); 10.1063/1.4793655 Focused ion beam induced synthesis of a porous antimony nanowire network

Spatially resolved measurement of electrochemical activity and pH distributions in corrosion processes by scanning electrochemical microscopy using antimony microelectrode tips

“…The electric potential of this material changes in response to variations in the acidity of the environment due to its tendency to be coated by a Sb2O3 film. Thus, antimony tips have been employed as pH sensor in SECM for the characterization of a variety of systems [17][18][19], as well as microsensors for other techniques [20][21][22][23][24][25][26][27][28]. Due to the metallic properties of antimony, tips from this material can also be employed in amperometric SECM to image the topography of the substrates under investigation [16,18], thus allowing more information to be gained from these systems.…”

Ordered SrTiO3 Nanoripples Induced by Focused Ion Beam

“…Focused ion beam (FIB) bombardment has recently been of considerable interest in self-assembly due to its capability of forming well-ordered nanostructures via selforganization as well as templates for the nanomaterial growth. Ion-beam-induced spatially aligned nanoripples, nanodots, and nanowires have been reported [5][6][7]. For example, the periodic ripples or terrace-like patterns introduced by FIB have been obtained on metals [8,9], semiconductors [10][11][12] and insulators [7,13].…”

Multifunctional Water Sensors for pH, ORP, and Conductivity Using Only Microfabricated Platinum Electrodes

“…The other challenging component is the pH sensing system, because pH sensors have to be insensitive to the environment except for the existence of hydronium ions. Some researchers focus on pH-sensitive antimony [ 12 ] or Ir/IrO 2 electrodes [ 9 , 13 ], and other researchers focus on silicon nanowire pH sensors [ 14 , 15 , 16 ]. Though trade-offs between sensitivity and stability of silicon nanowires is commonly observed [ 15 ], silicone nanowires draw great attention for their fast response and high sensitivity [ 16 ].…”