MnS hierarchical hollow spheres with novel shell structure.
High yields of MnS microspheres with novel hierarchical structure were prepared through a simple solution method. Field emission scanning electron microscopy and transmission electron microscopy analyses reveal that the microsphere has a core-shell structure: the interior hollow sphere is covered by a shell consisting of nanorod arrays. Interestingly, the nanorod is a wurtzite (WZ)/zinc blende (ZB) phase admixture with a large amount of stacking faults/twins. The alternation of WZ and ZB along the growth direction of the nanorod enables it to exhibit the features of a quantum well. Furthermore, the WZ/ZB admixture structure could also be regarded as a type II homomaterial heterostructure. All these features imply that the novel core-shell structure has great potential for applications, among them the quantum well photoelectrical and heterostructure photoconduction fields.
Cheng
Yao
Y
State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Graduate School of Chinese Academy of Sciences, Fuzhou, Fujian 350002, China.
Wang
Yuansheng
Y
Jia
Chong
C
Bao
Feng
F