title: Dense and vertically-aligned centimetre-long ZnS nanowire arrays: ionic liquid assisted synthesis and their field emission properties.
abstract: Based on the self-ordering behavior of ionic liquids on solid surface, a gold ion containing ionic liquid was employed to obtain a uniform pattern of gold nanoparticles on Si substrate. Using this catalytic pattern, super-dense, centimetre long, well-crystallized and vertically-aligned ZnS nanowire arrays were then generated. It was found that the densely-packed gold nanoparticles played a key role in the nanowire alignment. Furthermore, the field-emission measurements show that the present ultralong ZnS nanowires arrays possess a low turn-on field of 3.69 V μm(-1) and a high field-enhancement factor of 1215.4, indicating they are valuable field emitters.
authors.affiliation: International Center for Materials Nanoarchitectonics, National Institute for Materials Science, Namiki 1-1, Tsukuba, Ibaraki 3050044, Japan. CHEN.Shimou@nims.go.jp
authors.forename: Shimou
authors.initials: S
authors.lastname: Chen
authors.forename: Liang
authors.initials: L
authors.lastname: Li
authors.forename: Xi
authors.initials: X
authors.lastname: Wang
authors.forename: Wei
authors.initials: W
authors.lastname: Tian
authors.forename: Xuebing
authors.initials: X
authors.lastname: Wang
authors.forename: Dai-Ming
authors.initials: DM
authors.lastname: Tang
authors.forename: Yoshio
authors.initials: Y
authors.lastname: Bando
authors.forename: Dmitri
authors.initials: D
authors.lastname: Golberg