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Photoluminescence spectra of ZnO films doped with Li and Cl atoms

机译:用Li和Cl原子掺杂ZnO膜的光致发光光谱

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ZnO films doped with Li and Cl atoms have been prepared by organometallic chemical vapor deposition method. In photoluminescence spectra of the doped ZnO films, strong emission appears at 376 nm which is slightly longer than that of free-excitons. As excitation intensity increases, a peak wavelength of the emission is shifted toward a shorter value. The emission near band-gap edge is assigned to radiative recombination via Li-Cl pairs.
机译:通过有机金属化学气相沉积方法制备掺杂有Li和Cl原子的ZnO膜。在掺杂的ZnO膜的光致发光光谱中,强发射出现在376nm处,略长于自由激子​​。随着激励强度的增加,发射的峰值波长被移位为较短的值。带间隙边缘附近的发射被分配给通过Li-Cl对辐射重组。

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