Growth of ZnSe∶Mn Nanocrystals from Vapour Phase
来源期刊：JOURNAL OF RARE EARTHS2006年增刊第1期
论文作者：K Balkis Ameen S Soundeswaran R Dhanasekaran O Senthil Kumar T Rajasekharan
Key words：Ⅱ-Ⅵ semiconductors; nanocrystalline materials; electron spin resonance;
Abstract: ZnSe∶Mn nanocrystals were grown by chemical vapour transport method using the matrix of SiO2 aerogels. The cubic structure of the nanocrystals was confirmed by powder X-ray diffraction (XRD) and electron diffraction (ED) studies. The size of the crystals was observed using transmission electron microscope (TEM). The oxidation state of Mn in ZnSe nanocrystal was found using electron spin resonance (ESR) spectrum. The room temperature luminescence measurements show the peaks corresponding to both bandgap of the material and Mn in ZnSe.
K Balkis Ameen1，S Soundeswaran2，R Dhanasekaran2，O Senthil Kumar2，T Rajasekharan1
(1.Defence Metallurgical Research Laboratory, Hyderabad-500 058, India;
2.Crystal Growth Centre, Anna University, Chennai-600 025, India)
Abstract:ZnSe∶Mn nanocrystals were grown by chemical vapour transport method using the matrix of SiO2 aerogels. The cubic structure of the nanocrystals was confirmed by powder X-ray diffraction (XRD) and electron diffraction (ED) studies. The size of the crystals was observed using transmission electron microscope (TEM). The oxidation state of Mn in ZnSe nanocrystal was found using electron spin resonance (ESR) spectrum. The room temperature luminescence measurements show the peaks corresponding to both bandgap of the material and Mn in ZnSe.
Key words:Ⅱ-Ⅵ semiconductors; nanocrystalline materials; electron spin resonance;
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