Journal
NANO LETTERS
Volume 8, Issue 9, Pages 2794-2799Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nl801353c
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Funding
- National Major Project of Fundamental Research: Nanomaterials and Nanostructures [2005CB23603]
- Special fund for President Scholarship
- Chinese Academy of Science
- Natural Science Foundation of China [90406008]
- World Premier International Research Center on Materials Nanoarchitectonics (MANA)
- MEXT
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We report on a controlled synthesis of two novel semiconducting heterostructures: heterocrystalline-ZnS/single-crystalline-ZnO biaxial nanobelts and side-to-side single-crystalline ZnS/ZnO biaxial nanobelts via a simple one-step thermal evaporation method. In the first heterostructure, a ZnS domain is composed of the heterocrystalline superlattice (3C-ZnS)(N)(2H-ZnS)(M)[111]-[0001] with the atomically smooth interface between wurtzite and zinc blende ZnS fragments. High-spatial resolution cathodoluminescence studies on individual heterostructures for the first time reveal a new ultraviolet emission peak (similar to 355 nm), which is not observed in separate ZnS or ZnO nanostructures. The present hererostructures are expected to become valuable not only with respect to fundamental research but also for a design of new broad-range ultraviolet nanoscale lasers and sensors.
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