期刊
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
卷 10, 期 12, 页码 7997-8003出版社
AMER SCIENTIFIC PUBLISHERS
DOI: 10.1166/jnn.2010.3000
关键词
nanowires; Hydrothermal Method; beta-Cyclodextrin; Field Effect Transistor
类别
资金
- NSFC [50703012, 50433030]
- National 973 Project [2009CB930600, 2009CB623600]
Well-dispersed and uniform needle-like tellurium nanowires (NWs) have been fabricated in high yield by an environmentally-friendly hydrothermal method. It is found that beta-cyclodextrin ligands and reaction temperature play a great role on the morphology of Te NWs. Uniform needle-like Te NWs can only be obtained at suitable concentration of beta-CD and reaction temperature. A possible mechanism for the formation of the needle-liked Te NWs is discussed based on the experiment results briefly. High quality single Te NW field effect transistors are prepared through photolithographic patterning. By optimizing electrode and surface treatments, the NW FET has a high carrier mobility of 299 cm(2)V(-1)s(-1), which is the highest value ever reported for Te NW-based FETs. The performance is influenced by purity, crystallinity, surface species of NWs and metal contacts of NW device.
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