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キーワード:
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要旨:
The 2E(D)→ 2T2(D) emission of substitutional Cu2+ in ZnO has been observed in the 3700–5800-cm−1 spectral range under 50-keV electron-beam excitation at cryogenic temperatures. The excitation mechanisms of this cathodoluminescence are discussed and compared with concurrent photoluminescence experiments.