Arie, Arenst Andreas Lee, Joong Kee 2024-01-20T15:03:42Z 2024-01-20T15:03:42Z 2021-09-05 2012-04 1533-4880 https://pubs.kist.re.kr/handle/201004/129393 A Fullerene C-60 film was introduced as a coating layer for silicon nanowires (Si NWs) by a plasma assisted thermal evaporation technique. The morphology and structural characteristics of the materials were studied by scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS). SEM observations showed that the shape of the nanowire structure was maintained after the C-60 coating and the XPS analysis confirmed the presence of the carbon coating layer. The electrochemical characteristics of C-60 coated Si NWs as anode materials were examined by charge-discharge tests and electrochemical impedance measurements. With the C-60 film coating, Si NW electrodes exhibited a higher initial coulombic efficiency of 77% and a higher specific capacity of 2020 mA h g(-1) after the 30th cycle at a current density of 100 mu A cm(-2) with cut-off voltage between 0-1.5 V. These improved electrochemical characteristics are attributed to the presence of the C-60 coating layer which suppresses side reaction with the electrolyte and maintains the structural integrity of the Si NW electrodes during cycle tests. English AMER SCIENTIFIC PUBLISHERS ION BATTERIES Fullerene C-60 Coated Silicon Nanowires as Anode Materials for Lithium Secondary Batteries Article 10.1166/jnn.2012.5557 1 JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v.12, no.4, pp.3547 - 3551 JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY 12 4 3547 3551 scie scopus 000305850900116 2-s2.0-84863336617 Chemistry, Multidisciplinary Nanoscience & Nanotechnology Materials Science, Multidisciplinary Physics, Applied Physics, Condensed Matter Chemistry Science & Technology - Other Topics Materials Science Physics Article; Proceedings Paper ION BATTERIES Si NWs C-60 Coated Lithium Secondary Batteries Anode