Positioning growth of NPB crystalline nanowires on the PTCDA nanocrystal template. Issue 21 (23rd May 2018)

• Record Type: Journal Article
• Authors: Wang, Hong; Lin, Haiping; Fan, Xing; Ostendorp, Stefan; Wang, Yandong; Huang, Lizhen; Jiang, Lin; Li, Youyong; Wilde, Gerhard; Fuchs, Harald; Wang, Wenchong; Chi, Lifeng
• Is Part Of: Nanoscale. Volume 10:Issue 21(2018)
• Page Start: 10262
• Page End: 10267
• Publication Date: 2018-05-23
• Subjects: Nanoscience -- Periodicals; Nanotechnology -- Periodicals; 620.505
• DOI: 10.1039/c8nr02085j
• Languages: English
• ISSNs: 2040-3364

Abstract

Abstract : NPB crystalline nanowires are selectively grown on pre-defined areas by employing PTCDA nano-crystal as template. Abstract : Non-planar organic molecules often form amorphous films via vapor phase deposition on surfaces. In this study, we demonstrate for the first time that direct crystalline growth of non-planar NPB is possible when the orientation of initially deposited molecules on a PTCDA nanocrystal template is controlled to make it analogous to the structure of the molecular crystal. The crystalline NPB nanowires can be further positioned by controlling the site-selective growth of PTCDA nanocrystal templates at pre-determined locations. Short channel bottom contact OFET array with the NPB nanowires directly grown on electrodes were subsequently fabricated. The hole mobility of NPB nanowires is improved by 40-fold in comparison to that of the amorphous films.