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Open AccessArticle

Raman Spectra and Microstructure of Zinc Oxide irradiated with Swift Heavy Ion

1
Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
2
School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100000, China
*
Author to whom correspondence should be addressed.
Crystals 2019, 9(8), 395; https://doi.org/10.3390/cryst9080395
Received: 9 July 2019 / Revised: 23 July 2019 / Accepted: 29 July 2019 / Published: 31 July 2019
(This article belongs to the Special Issue Zinc Oxide Nanomaterials and Based Devices)
Zinc oxide (ZnO) materials irradiated with 350 MeV 56Fe21+ ions were studied by Raman spectroscopy, Photoluminescence spectra (PL) and Transmission electron microscope (TEM). After 56Fe21+ ion irradiation, a strong oxygen vacancy (Vo) related defect absorption peak at 576 cm−1 and an interstitial zinc (Zni) -related defect at 80 cm−1~200 cm−1 formed, and with the increase of dose, the absorption peak was obviously enhanced. Through theoretical calculation, different Raman incident light test methods wereused to determine the oxygen vacancy defect (Vo). There were no significant variation tendencies in the other Raman characteristic lines. Our results demonstrate an energy loss process contributing to the defect structure during irradiation. TEM images showed a lot of fundamental defects. But we see no distinct amorphization in the samples in the electron diffraction images, indicating that the higher energy and irradiation dose hardly affected the structure and performance of zinc oxide. View Full-Text
Keywords: swift heavy ion; irradiation; TEM; Raman swift heavy ion; irradiation; TEM; Raman
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Song, Y.; Zhang, S.; Zhang, C.; Yang, Y.; Lv, K. Raman Spectra and Microstructure of Zinc Oxide irradiated with Swift Heavy Ion. Crystals 2019, 9, 395.

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