title: Tuning of multifunctional Cu-doped ZnO films and nanowires for enhanced piezo/ferroelectric-like and gas/photoresponse properties.
abstract: The prospect of tuning and enhancing multiple properties of ZnO from optical, electrical, piezo to ferroelectricity/magnetism with Cu dopants will certainly spur the pursuit of facile doping methodology to immensely advance this field of research. Here, a one-step aqueous synthesis of Cu-doped ZnO nanostructured materials with effective controllability over the morphology (film to nanowire) and doping concentrations both on rigid and flexible substrates has been developed. High structural integrity Cu-doped ZnO films and nanowires were achieved without multiple/harsh post-processing which tends to degrade their functional properties. Comprehensive investigations of varying doping concentrations on the enhancement and tunability of room temperature piezo/ferroelectricity to gas/photosensing multifunctional properties were systematically reported for the first time.
authors: Department of Electrical and Computer Engineering, National University of Singapore, Singapore 117576, Singapore. elehgw@nus.edu.sg.
authors: Wei Li
authors: WL
authors: Ong
authors: Hejin
authors: H
authors: Huang
authors: Juanxiu
authors: J
authors: Xiao
authors: Kaiyang
authors: K
authors: Zeng
authors: Ghim Wei
authors: GW
authors: Ho