Photoluminescence of Si-based nanotips fabricated by anodic aluminum oxide template |
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Authors: | Yangjuan LiKai Huang Hongkai Lai Cheng LiSongyan Chen Junyong Kang |
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Institution: | Department of Physics, Xiamen University, Xiamen 361005, China |
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Abstract: | Large-area, high-density silicon-based nanotips were fabricated using electrochemical lithography. The morphology and optical properties of the samples were characterized by atomic force microscopy and photoluminescence. The distribution and size of the silicon-based nanotips were uniform. Two photoluminescence peaks were observed at 585 and 620 nm. The peak centered at 585 nm exhibited a narrow full-width at half maximum. No evident peak energy shift was observed when the measurement temperature was increased from 10 K to room temperature, which suggested that the photoluminescence should be attributed to the interface states and/or defects in the silicon-based nanotips. |
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Keywords: | Anodic aluminum oxide template Si-based nanotips Morphology Optical properties |
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