Growth mechanism and photoluminescence of CdS nanobelts on Si substrate
作者： Weifeng Liu , Chong Jia , Chuangui Jin , Lianzeng Yao , Weili Cai
DOI: 10.1016/J.JCRYSGRO.2004.05.093
关键词: Photoluminescence 、 Absorption spectroscopy 、 Crystallography 、 Electron diffraction 、 X-ray photoelectron spectroscopy 、 Transmission electron microscopy 、 Scanning electron microscope 、 Evaporation (deposition) 、 Chemistry 、 Selected area diffraction
摘要: Abstract Large-scale CdS nanobelts were synthesized using a simple physical evaporation of particles under controlled conditions on an Si substrate without any catalyst. The are single crystals with hexagonal structure growing along the [0 0 1] direction and growth process follows vapor–solid mechanism. Two emission bands around 517 735 nm observed, X-ray photoelectron spectroscopy (XPS) results reveal that band at originates from V s + vacancies.
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