Intense green luminescence from Eu2+ -doped ZnO microstructures

被引：19

作者：

Sugimoto, Hideo ^{[1
]}

Ebisawa, Katsuyuki ^{[1
]}

Okuno, Tsuyoshi ^{[1
]}

机构：

[1] Univ Electrocommun, Dept Appl Phys & Chem, Chofu, Tokyo 1828585, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS | 2007年 / 46卷 / 33-35期

关键词：

photoluminescence; ZnO; Eu; nanostructures; needles; energy transfer;

D O I：

10.1143/JJAP.46.L839

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We fabricated Eu2+-doped ZnO microstructures by thermal evaporation. Their structures were micrometer-size grains with smooth surfaces or nanometer-size needles. Morphology depended on the temperature region where structures were grown. A strong green luminescence at room temperature is demonstrated. This is attributed to the efficient energy transfer from the ZnO matrix to Eu2+ ions and their 5d-4f transitions.

引用

页码：L839 / L841

页数：3

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