Structural and optical properties of the three-dimensional CdS nanocone arrays on the self-assembled Cd∕CdS core-shell microspheres
Autor: | Weihai Kong, Chong Jia, Xinhua Zhang, Song Yin, Qingtao Zhou, Yong Su, Bo Peng, Yiqing Chen, Sen Li |
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Rok vydání: | 2007 |
Předmět: | |
Zdroj: | Applied Physics Letters. 90:203112 |
ISSN: | 1077-3118 0003-6951 |
DOI: | 10.1063/1.2740471 |
Popis: | The authors report on an approach to homoepitaxial growth of the three-dimensional CdS nanocone arrays, in which the Cd∕CdS core-shell sphere is designed to serve as a template. The alternation of the wurtzite (WZ) and zinc blende (ZB) phases along the growth direction of the nanocones is observed in the as-synthesized CdS nanocones. The WZ/ZB admixtures exhibit the features of a quantum well, which causes the two peaks centered at 506 and 503nm in the room-temperature photoluminescence spectrum. |
Databáze: | OpenAIRE |
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