Synthesis of ternary ZnxCd1−xS nanowires by thermal evaporation and the study of their photoluminescence

Autor:	Teresa L. Y. Cheung, Dickon H.L. Ng, Yan-Yan Xi
Rok vydání:	2008
Předmět:	Photoluminescence Materials science Nanocomposite Mechanical Engineering Analytical chemistry Nanowire Nanotechnology Condensed Matter Physics Mechanics of Materials Particle General Materials Science Vapor–liquid–solid method Ternary operation Ambient pressure Wurtzite crystal structure
Zdroj:	Materials Letters. 62:128-132
ISSN:	0167-577X
DOI:	10.1016/j.matlet.2007.04.094
Popis:	Ternary ZnxCd1 − xS nanowires were synthesized on Au-coated Si (100) substrates by thermal evaporation method. The nanowires obtained under ambient and reduced pressure of ∼ 100 Torr were studied and compared. Both of them were single crystalline wurtzite structured with similar chemical composition. The tip of the nanowires obtained in ambient pressure contained an Au-rich particle, but that obtained under reduced pressure was impurity-free. Hence, both vapor–liquid–solid (VLS) and mixed vapor–solid (VS)–VLS growth mechanisms were proposed for these two types of nanowires. Furthermore, photoluminescence studies revealed that their intrinsic and extrinsic emission bands were within the visible region.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f0403162e717b03666dbc9c50a388620 https://doi.org/10.1016/j.matlet.2007.04.094 Zobrazit plný text záznamu Full Text from ScienceDirect