Realization of the welding of individual TiO2 semiconductor nano-objects using a novel 1D Au80Sn20 nanosolder. Issue 43 (18th September 2015)

• Record Type: Journal Article
• Authors: Qu, Ke; Zhang, Hong; Lan, Qianqian; Deng, Xia; Ma, Xinlong; Huang, Yuanqing; Zhang, Junwei; Ma, Hongbin; Inkson, Beverley J.; Xue, Desheng; Peng, Yong
• Is Part Of: Journal of materials chemistry. Volume 3:Issue 43(2015)
• Page Start: 11311
• Page End: 11317
• Publication Date: 2015-09-18
• Subjects: Materials -- Periodicals; Chemistry, Analytic -- Periodicals; Optical materials -- Research -- Periodicals; Electronics -- Materials -- Research -- Periodicals; 543.0284
• DOI: 10.1039/c5tc01267h
• Languages: English
• ISSNs: 2050-7526

Abstract

Abstract : Individual semiconductor TiO2 nanowires were successfully welded together using novel one-dimensional Au80 Sn20 nanosolders in situ TEM and in situ SEM for the first time. Abstract : Individual semiconductor nanowires (NWs) TiO2 were successfully welded together using novel one-dimensional (1D) Au80 Sn20 (mass ratio) nanosolders at the nano-scale for the first time. The nanosolders were electrodeposited into nanoporous templates to form a 1D structure, and their morphology, crystal structure, chemistry and elemental electronic states were systematically characterized. Individual Au80 Sn20 nanowires were proved to consist of mixed crystal phases, including a Au5Sn phase with a trigonal structure, a AuSn phase with a hexagonal structure and a small SnO2 phase produced the by oxidation of the surface portion. Chemical analysis indicated that the composition was Au80 Sn20 . The testing of the welding capability by either in situ TEM or in situ SEM by nanomanipulators and infiltration experiment revealed a good wet ability and diffusion ability between the Au80 Sn20 nanosolder and the TiO2 nanowire. It is believed that our study contributes to the field a special nanosolder for future nano-scale welding techniques, which also make the bonding of titanium-based semiconductor oxide nanomaterials at the nano-scale a reality.