title: A scalable colloidal approach to prepare hematite films for efficient solar water splitting.
abstract: The development of technologically and economically viable strategies for large-scale fabrication of photoelectrodes is crucial for solar H2 production from photoelectrochemical water splitting. Herein, a low-cost and facile colloidal electrophoretic deposition approach was developed for scalable fabrication of hematite (α-Fe2O3) films. Large-sized uniform films (e.g. 80 mm × 70 mm) with tailored thickness and nanostructures can be easily prepared on conductive substrates within 2 minutes. The resultant films showed a high photocurrent of ∼1.1 mA cm(-2) at 1.23 V(RHE) under standard AM 1.5G illumination, which is among the highest reported values achieved on hematite films prepared using other complex colloidal approaches. The present work will pave a new avenue for fabrication of efficient photoelectrodes toward practically viable solar H2 production.
authors.affiliation: ARC Centre of Excellence for Functional Nanomaterials, School of Chemical Engineering and AIBN, The University of Queensland, QLD 4072, Australia.
authors.forename: Xu
authors.initials: X
authors.lastname: Zong
authors.forename: Supphasin
authors.initials: S
authors.lastname: Thaweesak
authors.forename: Hongyi
authors.initials: H
authors.lastname: Xu
authors.forename: Zheng
authors.initials: Z
authors.lastname: Xing
authors.forename: Jin
authors.initials: J
authors.lastname: Zou
authors.forename: Gaoqing Max
authors.initials: GM
authors.lastname: Lu
authors.forename: Lianzhou
authors.initials: L
authors.lastname: Wang