title: Deterministic Assembly of Flexible Si/Ge Nanoribbons via Edge-Cutting Transfer and Printing for van der Waals Heterojunctions.
abstract: As the promising building blocks for flexible electronics and photonics, inorganic semiconductor nanomembranes have attracted considerable attention owing to their excellent mechanical flexibility and electrical/optical properties. To functionalize these building blocks with complex components, transfer and printing methods in a convenient and precise way are urgently demanded. A combined and controllable approach called edge-cutting transfer method to assemble semiconductor nanoribbons with defined width (down to submicrometer) and length (up to millimeter) is proposed. The transfer efficiency can be comprehended by a classical cantilever model, in which the difference of stress distributions between forth and back edges is investigated using finite element method. In addition, the vertical van der Waals PN (p-Si/n-Ge) junction constructed by a two-round process presents a typical rectifying behavior. The proposed technology may provide a practical, reliable, and cost-efficient strategy for transfer and printing routines, and thus expediting its potential applications for roll-to-roll productions for flexible devices.
authors.affiliation: State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, P. R. China.
authors.forename: Qinglei
authors.initials: Q
authors.lastname: Guo
authors.affiliation: State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, P. R. China.
authors.forename: Miao
authors.initials: M
authors.lastname: Zhang
authors.affiliation: State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, P. R. China.
authors.forename: Zhongying
authors.initials: Z
authors.lastname: Xue
authors.affiliation: State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, P. R. China.
authors.forename: Gang
authors.initials: G
authors.lastname: Wang
authors.affiliation: State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, P. R. China.
authors.forename: Da
authors.initials: D
authors.lastname: Chen
authors.affiliation: Department of Materials Science, Fudan University, Shanghai, 200433, P. R. China.
authors.forename: Ronggen
authors.initials: R
authors.lastname: Cao
authors.affiliation: Department of Materials Science, Fudan University, Shanghai, 200433, P. R. China.
authors.forename: Gaoshan
authors.initials: G
authors.lastname: Huang
authors.affiliation: Department of Materials Science, Fudan University, Shanghai, 200433, P. R. China.
authors.forename: Yongfeng
authors.initials: Y
authors.lastname: Mei
authors.affiliation: State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, P. R. China.
authors.forename: Zengfeng
authors.initials: Z
authors.lastname: Di
authors.affiliation: State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, P. R. China.
authors.forename: Xi
authors.initials: X
authors.lastname: Wang
keywords: Si/Ge nanoribbons; deterministic assembly; edge-cutting transfer; flexible electronics; heterojunctions; printing