火花侵蚀ZnO纳米粉体的发光性能

2018 IEEE 38th International Conference on Electronics and Nanotechnology (ELNANO) Pub Date : 2018-04-01 DOI:10.1109/ELNANO.2018.8477466

A. Gilchuk, O. Scherbyna, Yu.M. Romanenko, D. Zozulina, A. Perekos, Y. Bacherikov, R. Kurichka

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引用次数: 0

摘要

氧化锌纳米材料具有许多实际应用，特别是在微电子领域。采用火花侵蚀法制备ZnO纳米粉体。根据x射线衍射(XRD)、扫描电子显微镜(SEM)和透射电子显微镜(TEM)的数据，粉末由平均粒径为25 nm的ZnO颗粒团块组成。光致发光研究表明，火花侵蚀ZnO纳米粉体在350 ~ 700 nm范围内具有较宽的光致发光峰。它由至少7条线组成，可归因于供体-受体复合，杂质和缺陷，如锌和氧空位，间隙锌和表面位错。因此，火花侵蚀ZnO纳米粉末表现出自激活的光致发光特性。

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Luminescent Properties of Spark Eroded ZnO Nanopowder

ZnO nanomaterial has many practical applications in particular in microelectronics. ZnO nanopowder was obtained by spark erosion method in water. According to the X-Ray diffraction (XRD), scanning electron microscopy (SEM) and transmitting electron microscopy (TEM) data powder consists of agglomerates of ZnO particles with average size of 25 nm. Photoluminescent study shows that spark eroded ZnO nanopowder has a wide photoluminescence (PL) peak between 350 and 700 nm. It consists of minimum 7 lines which can be attributed to the donor-acceptor recombination, impurities and defects such as zinc and oxygen vacancies, interstitial Zn and surface dislocations. Therefore, the spark eroded ZnO nanopowder demonstrates a self-activated photoluminescence.

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2018 IEEE 38th International Conference on Electronics and Nanotechnology (ELNANO)

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