Positioning and joining of organic single-crystalline wires

Yuchen Wu, Jiangang Feng, Xiangyu Jiang, Zhen Zhang, Xuedong Wang, Bin Su, Lei Jiang

Research output: Contribution to journalArticleResearchpeer-review

93 Citations (Scopus)

Abstract

Organic single-crystal, one-dimensional materials can effectively carry charges and/or excitons due to their highly ordered molecule packing, minimized defects and eliminated grain boundaries. Controlling the alignment/position of organic single-crystal one-dimensional architectures would allow on-demand photon/electron transport, which is a prerequisite in waveguides and other optoelectronic applications. Here we report a guided physical vapour transport technique to control the growth, alignment and positioning of organic single-crystal wires with the guidance of pillar-structured substrates. Submicrometre-wide, hundreds of micrometres long, highly aligned, organic single-crystal wire arrays are generated. Furthermore, these organic single-crystal wires can be joined within controlled angles by varying the pillar geometries. Owing to the controllable growth of organic single-crystal one-dimensional architectures, we can present proof-of-principle demonstrations utilizing joined wires to allow optical waveguide through small radii of curvature (internal angles of ∼90–120º). Our methodology may open a route to control the growth of organic single-crystal one-dimensional materials with potential applications in optoelectronics.
Original languageEnglish
Article number6737
Number of pages10
JournalNature Communications
Volume6
DOIs
Publication statusPublished - 27 Mar 2015
Externally publishedYes

Cite this