Journal
CHEMICAL SOCIETY REVIEWS
Volume 47, Issue 20, Pages 7504-7521Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8cs00418h
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Funding
- NSF of China [51525202, 61574054, 51772084, 61505051, 61635001, 51802089]
- Aid program for Science and Technology Innovative Research Team in Higher Educational Institutions of Hunan Province
- Joint Research Fund for Overseas Chinese, Hong Kong
- Macau Scholars of the National Natural Science Foundation of China [61528403]
- Fundamental Research Funds for the Central Universities
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Low dimensional heterostructures have potential applications in information, sensing, and energy-related technologies. In order to obtain high-quality low dimensional heterostructures, an essential method is tuning chemical composition in a single nanostructure to obtain two or multiple components with well-matched electronic band structures. Here, we present a tutorial review of a unique chemical vapor growth approach with in situ switchable solid chemical sources that can build composition-modulated chalcogenide heterostructures in one-dimensional nanowires, quasi one-dimensional nanobelts and two-dimensional atomic layered nanosheets in a controlled manner. This approach has generated a large variety of heterostructures that not only exhibit gradient distribution in chemical composition, but also show sharp interfaces. Diverse integrated photonic and optoelectronic devices are enabled by the composition-modulated heterostructures based on chalcogenides or other material systems.
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