title: Photoelectrochemical properties of vertically oriented hematite/gold multi-block nanorod arrays and their comparison to pure hematite nanorod arrays.
abstract: Vertically oriented hematite/gold (alpha-Fe2O3/Au) multi-block nanorod arrays are prepared with the goal of achieving enhanced photocatalytic ability to produce hydrogen from water. The effects of the insertion of the Au block in the pure alpha-Fe2O3 nanorod on the photocurrent generation are firstly characterized by photocurrent-voltage. The insertion of Au is expected to play an important role in the enhancement of the transport of electrons generated in the alpha-Fe2O3. The multi-block nanorod arrays show an improved photocurrent density and negative shift of the onset potential under 100 mW cm(-2) simulated solar light illumination.
authors.affiliation: School of Chemical Engineering and SAINT, Sungkyunkwan University, Suwon 440-746, Republic of Korea.
authors.forename: Aiming
authors.initials: A
authors.lastname: Mao
authors.forename: Wanjung
authors.initials: W
authors.lastname: Kim
authors.forename: Gui Young
authors.initials: GY
authors.lastname: Han
authors.forename: Jong Hyeok
authors.initials: JH
authors.lastname: Park