Giant enhancement of band edge emission based on ZnO/TiO(2) nanocomposites.
Giant enhancement of band edge emission based on ZnO/TiO(2) nanocomposites.
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DOI：
10.1364/oe.15.013832
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发表时间：
2007-10
期刊：
影响因子：
3.8
通讯作者：
H. Lin;Y. Chou;C. L. Cheng;Y. F. Chen
中科院分区：
文献类型：
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作者：
H. Lin;Y. Chou;C. L. Cheng;Y. F. Chen
在ZnO纳米棒与TiO(2)纳米颗粒的复合材料中，ZnO纳米棒的带边发射增强了120倍，而ZnO纳米棒的缺陷发射被淬灭到噪声水平。通过详细的研究发现，这种显著的增强主要是由于ZnO纳米棒和TiO(2)纳米颗粒带边跃迁之间的荧光共振能量转移。我们的发现为创造高效的固态发射器开辟了新的可能性。
Enhancement of band edge emission of ZnO nanorods up to a factor of 120 times has been observed in the composite consisting of ZnO nanorods and TiO(2) nanoparticles, while the defect emission of ZnO nanorods is quenched to noise level. Through a detailed investigation, it is found that the large enhancement mainly arises from fluorescence resonance energy transfer between the band edge transition of ZnO nanorods and TiO(2) nanoparticles. Our finding opens up new possibilities for the creation of highly efficient solid state emitters.