Journal
JOURNAL OF MATERIALS CHEMISTRY C
Volume 2, Issue 8, Pages 1418-1426Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3tc31919a
Keywords
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Funding
- National Natural Science Foundation of China [61006049, 50925207]
- Ministry of Science and Technology of China [2009DFA50620, 2011DFG52970]
- Ministry of Education of China [IRT1064]
- Jiangsu Innovation Research Team, JSHRSS [2011-XCL-019]
- Education Department of Jiangsu [10KJB430004]
- Jiangsu University [09JDG043]
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Semiconductor-semiconductor hetero-nanorods (Ag2Se-CdSe and Ag2Se-ZnSe) with high crystallinity have been synthesized by a facile and low-cost method. High resolution transmission electron microscopy investigations reveal that the growth follows a catalyst-assisted mechanism. A preliminary investigation of nonlinear optical properties shows that the hetero-nanorods exhibit significantly enhanced third-order nonlinear optical properties. The free carrier absorption cross-section of Ag2Se-CdSe hetero-nanorods is one order of magnitude higher than that of the corresponding single component CdSe nanocrystals. The results obtained in this study represent a new approach to the design and construction of metal selenide hetero-nanorods with high crystallinity and enhanced nonlinear optical capabilities.
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