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    請使用永久網址來引用或連結此文件: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/27605

    題名: Photoluminescence study of ZnCdSe/ZnSe quantum dot systems
    作者: Lee, J. R.;Lu, C. R.;You, C. H.;鄭振益;Jen, J. Y.
    貢獻者: 淡江大學物理學系
    日期: 2005-11-01
    上傳時間: 2009-12-31 10:29:29 (UTC+8)
    出版者: Elsevier
    摘要: The optical properties of the populated ZnCdSe/ZnSe quantum dots have been studied by photoluminescence spectra measured with different laser excitation apertures at temperatures from 22 to 300 K. The differences of spectral features between small and large excitation spot suggest the existence of quantum dot size fluctuation in the system. The temperature evolution of photoluminescence spectral features revealed that two types of quantum dots with different densities and sizes coexist in ZnCdSe/ZnSe system. The energy spacings of the two kinds of quantum dot emissions are about 50 meV at various temperatures. The thermally activated lateral transfer processes of carriers populated in the two sorts of quantum dots are investigated by temperature dependences of spectral intensities.
    關聯: Journal of Physics and Chemistry of Solids 66(11), pp.1920-1923
    DOI: 10.1016/j.jpcs.2005.09.026
    顯示於類別:[物理學系暨研究所] 期刊論文


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