BibTex format
@article{Alqahtani:2020:10.1002/cssc.202002004,
author = {Alqahtani, M and Kafizas, A and Sathasivam, S and Ebaid, M and Cui, F and Alyamani, A and Jeong, H-H and Chun, Lee T and Fischer, P and Parkin, I and Grätzel, M and Wu, J},
doi = {10.1002/cssc.202002004},
journal = {ChemSusChem: chemistry and sustainability, energy and materials},
pages = {6028--6036},
title = {A hierarchical 3D TiO2 /Ni nanostructure as an efficient hole-extraction and protection layer for GaAs photoanodes},
url = {http://dx.doi.org/10.1002/cssc.202002004},
volume = {13},
year = {2020}
}
RIS format (EndNote, RefMan)
TY - JOUR
AB - Photoelectrochemical (PEC) water splitting is a promising clean route to hydrogen fuel. The best-performing materials (III/V semiconductors) require surface passivation, as they are liable to corrosion, and a surface co-catalyst to facilitate water splitting. At present, optimal design combining photoelectrodes with oxygen evolution catalysts remains a significant materials challenge. Here, we demonstrate that nickel-coated amorphous three-dimensional (3D) TiO2 core-shell nanorods on a TiO2 thin film function as an efficient hole-extraction layer and serve as a protection layer for the GaAs photoanode. Transient-absorption spectroscopy (TAS) demonstrated the role of nickel-coated (3D) TiO2 core-shell nanorods in prolonging photogenerated charge lifetimes in GaAs, resulting in a higher catalytic activity. This strategy may open the potential of utilizing this low-cost (3D) nanostructured catalyst for decorating narrow-band-gap semiconductor photoanodes for PEC water splitting devices.
AU - Alqahtani,M
AU - Kafizas,A
AU - Sathasivam,S
AU - Ebaid,M
AU - Cui,F
AU - Alyamani,A
AU - Jeong,H-H
AU - Chun,Lee T
AU - Fischer,P
AU - Parkin,I
AU - Grätzel,M
AU - Wu,J
DO - 10.1002/cssc.202002004
EP - 6036
PY - 2020///
SN - 1864-5631
SP - 6028
TI - A hierarchical 3D TiO2 /Ni nanostructure as an efficient hole-extraction and protection layer for GaAs photoanodes
T2 - ChemSusChem: chemistry and sustainability, energy and materials
UR - http://dx.doi.org/10.1002/cssc.202002004
UR - https://www.ncbi.nlm.nih.gov/pubmed/32986913
UR - http://hdl.handle.net/10044/1/84245
VL - 13
ER -