PMID- 25852309 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20150408 LR - 20200929 IS - 1931-7573 (Print) IS - 1556-276X (Electronic) IS - 1556-276X (Linking) VI - 10 DP - 2015 TI - Morphological engineering of self-assembled nanostructures at nanoscale on faceted GaAs nanowires by droplet epitaxy. PG - 11 LID - 10.1186/s11671-014-0717-y [doi] LID - 11 AB - Fabrication of advanced artificial nanomaterials is a long-term pursuit to fulfill the promises of nanomaterials and it is of utter importance to manipulate materials at nanoscale to meet urgent demands of nanostructures with designed properties. Herein, we demonstrate the morphological tailoring of self-assembled nanostructures on faceted GaAs nanowires (NWs). The NWs are deposited on different kinds of substrates. Triangular and hexagonal prism morphologies are obtained, and their corresponding 110 sidewalls act as platforms for the nucleation of gallium droplets (GDs). We demonstrate that the morphologies of the nanostructures depend not only on the annealing conditions but also on the morphologies of the NWs' sidewalls. Here, we achieve morphological engineering in the form of novel quantum dots (QDs), 'square' quantum rings (QRs), 'rectangular' QRs, 3D QRs, crescent-shaped QRs, and nano-antidots. The evolution mechanisms for the peculiar morphologies of both NWs and nanostructures are modeled and discussed in detail. This work shows the potential of combining nano-structural engineering with NWs to achieve multifunctional properties and applications. FAU - Zha, Guo-Wei AU - Zha GW AD - State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, P.O. Box 912, Beijing, 100083 China ; Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026 China. FAU - Zhang, Li-Chun AU - Zhang LC AD - State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, P.O. Box 912, Beijing, 100083 China ; Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026 China. FAU - Yu, Ying AU - Yu Y AD - State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, P.O. Box 912, Beijing, 100083 China ; Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026 China. FAU - Xu, Jian-Xing AU - Xu JX AD - State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, P.O. Box 912, Beijing, 100083 China ; Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026 China. FAU - Wei, Si-Hang AU - Wei SH AD - State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, P.O. Box 912, Beijing, 100083 China ; Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026 China. FAU - Shang, Xiang-Jun AU - Shang XJ AD - State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, P.O. Box 912, Beijing, 100083 China ; Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026 China. FAU - Ni, Hai-Qiao AU - Ni HQ AD - State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, P.O. Box 912, Beijing, 100083 China ; Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026 China. FAU - Niu, Zhi-Chuan AU - Niu ZC AD - State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, P.O. Box 912, Beijing, 100083 China ; Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026 China. LA - eng PT - Journal Article DEP - 20150127 PL - United States TA - Nanoscale Res Lett JT - Nanoscale research letters JID - 101279750 PMC - PMC4384706 OTO - NOTNLM OT - Droplet epitaxy OT - Morphology OT - Nanostructures OT - Nanowires EDAT- 2015/04/09 06:00 MHDA- 2015/04/09 06:01 PMCR- 2015/01/27 CRDT- 2015/04/09 06:00 PHST- 2014/11/25 00:00 [received] PHST- 2014/12/26 00:00 [accepted] PHST- 2015/04/09 06:00 [entrez] PHST- 2015/04/09 06:00 [pubmed] PHST- 2015/04/09 06:01 [medline] PHST- 2015/01/27 00:00 [pmc-release] AID - 717 [pii] AID - 10.1186/s11671-014-0717-y [doi] PST - epublish SO - Nanoscale Res Lett. 2015 Jan 27;10:11. doi: 10.1186/s11671-014-0717-y. eCollection 2015.