A facile approach to hetero-nanorods of Ag2Se–MSe (M = Cd, Zn) with enhanced third-order optical nonlinearity | Zendy

Zhipeng Huang | Zendy; Maoying Li | Zendy; Ding Jia | Zendy; Peng Zhong | Zendy; Feng Tian | Zendy; Zhongzhong Chen | Zendy; Mark G. Humphrey | Zendy; Chi Zhang | Zendy

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A facile approach to hetero-nanorods of Ag2Se–MSe (M = Cd, Zn) with enhanced third-order optical nonlinearity

Author(s) -

Zhipeng Huang,

Maoying Li,

Ding Jia,

Peng Zhong,

Feng Tian,

Zhongzhong Chen,

Mark G. Humphrey,

Chi Zhang

Publication year - 2013

Publication title -

journal of materials chemistry c

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.899

H-Index - 128

eISSN - 2050-7534

pISSN - 2050-7526

DOI - 10.1039/c3tc31919a

Subject(s) - nanorod , crystallinity , materials science , semiconductor , optoelectronics , selenide , nanocrystal , nanotechnology , high resolution transmission electron microscopy , transmission electron microscopy , chemical engineering , selenium , composite material , engineering , metallurgy

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. ? 2014 The Royal Society of Chemistry.

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