TY - GEN
T1 - Effect of anodization conditions on the synthesis of TiO2 nanopores
AU - Chatterjee, Subhasish
AU - Ginzberg, Miriam
AU - Gersten, Bonnie
PY - 2006
Y1 - 2006
N2 - Nanoporous structures play a promising role in the development of nanomechanical, nanoelectrical and biosensing devices. In addition, nanopores can be utilized as chemical and gas sensors. TiO2 is a semiconductor material, which can have a wide range of applications in nanopore-based sensors. In this study, TiO2 nanopores were prepared by electrochemical anodization. Titanium was used as the anode, while platinum was used as the cathode in an electrochemical cell filled with a hydrofluoric acid electrolyte solution. During the preparation process, titanium was converted to its oxide form. Nanostructures were synthesized under varying physical conditions, including HF concentrations of 0.5-10% and anodization times of 5-30 minutes. The resulting nanopore structures were characterized by scanning electron microscopy (SEM). With a progressive increase in HF concentration (from 0.5% to 10%), the diameter of the nanopores decreased, from approximately 100 nm in diameter to 50 nm. The nanopores showed a transformation from tube-like structures to pore networks with increased HF concentration or anodization time. The results show that the dimensions and morphology of the nanopores can be controlled by alteration of the anodization conditions.
AB - Nanoporous structures play a promising role in the development of nanomechanical, nanoelectrical and biosensing devices. In addition, nanopores can be utilized as chemical and gas sensors. TiO2 is a semiconductor material, which can have a wide range of applications in nanopore-based sensors. In this study, TiO2 nanopores were prepared by electrochemical anodization. Titanium was used as the anode, while platinum was used as the cathode in an electrochemical cell filled with a hydrofluoric acid electrolyte solution. During the preparation process, titanium was converted to its oxide form. Nanostructures were synthesized under varying physical conditions, including HF concentrations of 0.5-10% and anodization times of 5-30 minutes. The resulting nanopore structures were characterized by scanning electron microscopy (SEM). With a progressive increase in HF concentration (from 0.5% to 10%), the diameter of the nanopores decreased, from approximately 100 nm in diameter to 50 nm. The nanopores showed a transformation from tube-like structures to pore networks with increased HF concentration or anodization time. The results show that the dimensions and morphology of the nanopores can be controlled by alteration of the anodization conditions.
UR - http://www.scopus.com/inward/record.url?scp=40949086515&partnerID=8YFLogxK
U2 - 10.1557/proc-0951-e09-27
DO - 10.1557/proc-0951-e09-27
M3 - Conference contribution
AN - SCOPUS:40949086515
SN - 9781604234077
T3 - Materials Research Society Symposium Proceedings
SP - 227
EP - 232
BT - Nanofunctional Materials, Nanostructures and Novel Devices for Biological and Chemical Detection
PB - Materials Research Society
T2 - 2006 MRS Fall Meeting
Y2 - 27 November 2006 through 1 December 2006
ER -