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
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