title: Scalable alignment and transfer of nanowires based on oriented polymer nanofibers.
abstract: We develop a simple and scalable method based on oriented polymer nanofiber films for the parallel assembly and transfer of nanowires at high density. Nanowires dispersed in solution are aligned and selectively deposited at the central space of parallel nanochannels formed by the well-oriented nanofibers as a result of evaporation-induced flow and capillarity. A general contact printing method is used to realize the transfer of the nanowires from the donor nanofiber film to a receiver substrate. The mechanism, which involves ordered alignment of nanowires on oriented polymer nanofiber films, is also explored with an evaporation model of cylindrical droplets. The simplicity of the assembly and transfer, and the facile fabrication of large-area well-oriented nanofiber films, make the present method promising for the application of nanowires, especially for the disordered nanowires synthesized by solution chemistry.
authors.affiliation: State Key Laboratory of Bioelectronics (Chien-Shiung Wu Laboratory), School of Biological Science and Medical Engineering, Southeast University, Nanjing, People's Republic of China.
authors.forename: Shancheng
authors.initials: S
authors.lastname: Yan
authors.forename: Lanxin
authors.initials: L
authors.lastname: Lu
authors.forename: Hao
authors.initials: H
authors.lastname: Meng
authors.forename: Ningping
authors.initials: N
authors.lastname: Huang
authors.forename: Zhongdang
authors.initials: Z
authors.lastname: Xiao