English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Journal Article

Single crystalline wurtzite ZnO/zinc blende ZnS coaxial heterojunctions and hollow zinc blende ZnS nanotubes: synthesis, structural characterization and optical properties

MPS-Authors
/persons/resource/persons39194

Huang,  Xing
Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences;
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons22243

Willinger,  Marc Georg
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons49294

Xie,  Zailai
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons21731

Klein-Hoffmann,  Achim
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

/persons/resource/persons21557

Girgsdies,  Frank
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

External Ressource
No external resources are shared
Fulltext (public)

c4nr01575d.pdf
(Publisher version), 2MB

Supplementary Material (public)
There is no public supplementary material available
Citation

Huang, X., Willinger, M. G., Fan, H., Xie, Z., Wang, L., Klein-Hoffmann, A., et al. (2014). Single crystalline wurtzite ZnO/zinc blende ZnS coaxial heterojunctions and hollow zinc blende ZnS nanotubes: synthesis, structural characterization and optical properties. Nanoscale, 6(15), 8787-8795. doi:10.1039/C4NR01575D.


Cite as: http://hdl.handle.net/11858/00-001M-0000-001A-24F1-E
Abstract
Synthesis of ZnO/ZnS heterostructures under thermodynamic conditions generally results in the wurtzite (WZ) structure of the ZnS component because its WZ phase is thermodynamically more stable than its zinc blende (ZB) phase. In this report, we demonstrate for the first time the preparation of ZnO/ZnS coaxial nanocables composed of single crystalline ZB structured ZnS epitaxially grown on WZ ZnO via a two-step thermal evaporation method. The deposition temperature is believed to play a crucial role in determining the crystalline phase of ZnS. Through a systematic structural analysis, the ZnO core and the ZnS shell are found to have an orientation relationship of (0002)ZnOWZ//(002)ZnSZB and [01−10]ZnOWZ//[2−20]ZnSZB. Observation of the coaxial nanocables in cross-section reveals the formation of voids between the ZnO core and the ZnS shell during the coating process, which is probably associated with the nanoscale Kirkendall effect known to result in porosity. Furthermore, by immersing the ZnO/ZnS nanocable heterojunctions in an acetic acid solution to etch away the inner ZnO cores, single crystalline ZnS nanotubes orientated along the [001] direction of the ZB structure were also achieved for the first time. Finally, optical properties of the hollow ZnS tubes were investigated and discussed in detail. We believe that our study could provide some insights into the controlled fabrication of one dimensional (1D) semiconductors with desired morphology, structure and composition at the nanoscale, and the synthesized WZ ZnO/ZB ZnS nanocables as well as ZB ZnS nanotubes could be ideal candidates for the study of optoelectronics based on II–VI semiconductors