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High-quality single-crystal CdSe nanoribbons and their optical properties

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Abstract

Large-scale synthesis of single-crystal CdSe nanoribbons is achieved by a modified thermal evaporation method, in which two-step-thermal-evaporation is used to control CdSe sources’ evaporation. The synthesized CdSe nanoribbons are usually several micrometers in width, 50 nm in thickness, and tens to several hundred micrometers in length. Studies have shown that high-quality CdSe nanoribbons with regular shapes can be obtained by this method. Room-temperature photoluminescence indicates that the lasing emission at 710 nm has been observed under optical pumping (266 nm) at power densities of 25–153 kW/cm2. The full width half maximum (FWHM) of the lasing mode is 0.67 nm

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Authors and Affiliations

  1. Department of Physics, Yunnan Normal University, Kunming, 650092, China

    D. D. Hou & Y. K. Liu

  2. Center of Super-Diamond and Advanced Films (COSDAF) and Department of Physics and Material Science, City University of Hong Kong, Hong Kong SAR, China

    Y. K. Liu, J. A. Zapien, Y. Y. Shan & S. T. Lee

Authors
  1. D. D. Hou
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  2. Y. K. Liu
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  3. J. A. Zapien
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  4. Y. Y. Shan
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  5. S. T. Lee
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Corresponding author

Correspondence to Y. K. Liu.

Additional information

This work was supported by National Natural Science Foundation of China (No. 10764005), Natural Science Foundation of Yunnan Province (No. 06A0025Q, 2007PY01-41), Educational Council of Yunnan Province (No. 5Z0098A, 06Y091), and the Research Grants Council of the Hong Kong SAR, China [Project No. CityU 3/01C (8730016)], and Strategic Research Grant of the City University of Hong Kong [Project No. 7001175].

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Hou, D.D., Liu, Y.K., Zapien, J.A. et al. High-quality single-crystal CdSe nanoribbons and their optical properties. Optoelectron. Lett. 4, 161–164 (2008). https://doi.org/10.1007/s11801-008-8021-7

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  • DOI: https://doi.org/10.1007/s11801-008-8021-7

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