PMID- 28684661 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20180723 LR - 20180723 IS - 1361-6528 (Electronic) IS - 0957-4484 (Linking) VI - 28 IP - 36 DP - 2017 Sep 8 TI - Strategies for the AFM-based manipulation of silver nanowires on a flat surface. PG - 365301 LID - 10.1088/1361-6528/aa7e35 [doi] AB - Silver nanowires (Ag NWs) are a promising material for building various sensors and devices at the nanoscale. However, the fast and precise placement of individual Ag NWs is still a challenge today. Atomic force microscopy (AFM) has been widely used to manipulate nanoparticles, yet this technology encounters many difficulties when being applied to the movement of Ag NWs as well as other soft one-dimensional (1D) materials, since the samples are easily distorted or even broken due to friction and adhesion on the substrate. In this paper, two novel manipulation strategies based on the parallel pushing method are presented. This method applies a group of short parallel pushing vectors (PPVs) to the Ag NW along its longitudinal direction. Identical and proportional vectors are respectively proposed to translate and rotate the Ag NWs with a straight-line configuration. The rotation strategy is also applied to straighten flexed Ag NWs. The finite element method simulation is introduced to analyse the behaviour of the Ag NWs as well as to optimize the parameter setting of the PPVs. Experiments are carried out to confirm the efficiency of the presented strategies. By comprehensive application of the new strategies, four Ag NWs are continuously assembled in a rectangular pattern. This study improves the controllability of the position and configuration of Ag NWs on a flat substrate. It also indicates the practicability of automatic nanofabrication using common AFMs. FAU - Liu, Hong-Zhi AU - Liu HZ AD - School of Precision Instruments and Opto-electronics Engineering, Tianjin University, Tianjin, People's Republic of China. FAU - Wu, Sen AU - Wu S FAU - Zhang, Jun-Ming AU - Zhang JM FAU - Bai, Hui-Tian AU - Bai HT FAU - Jin, Fan AU - Jin F FAU - Pang, Hai AU - Pang H FAU - Hu, Xiao-Dong AU - Hu XD LA - eng PT - Journal Article DEP - 20170707 PL - England TA - Nanotechnology JT - Nanotechnology JID - 101241272 EDAT- 2017/07/08 06:00 MHDA- 2017/07/08 06:01 CRDT- 2017/07/08 06:00 PHST- 2017/07/08 06:00 [pubmed] PHST- 2017/07/08 06:01 [medline] PHST- 2017/07/08 06:00 [entrez] AID - 10.1088/1361-6528/aa7e35 [doi] PST - ppublish SO - Nanotechnology. 2017 Sep 8;28(36):365301. doi: 10.1088/1361-6528/aa7e35. Epub 2017 Jul 7.