- 必威体育下载

姓名
邮箱
手机号码
标题
留言内容
验证码

Abstract

ZnO nanopowders are mechanically mixed with a certain quantity of Co3O4 nanopowders to obtain 10at.% Co doped Co3O4/ZnO composites. The nanocomposites are annealed in argon atmosphere at different temperatures between 100 ℃ and 1200 ℃. The structure and the grain size of the nanocomposite are investigated by X-ray diffraction 2 scans. With annealing temperature increasing up to 700 ℃, Co3O4 phase gradually disappears, and ZnO grain size begins to increase significantly. After annealing at above 1000 ℃, Co3O4 phase completely disappears, and CoO phase (rock-salt crystal structure) appears. Positron annihilation lifetime measurements reveal a large number of Zn vacancies and vacancy clusters existing in the interface region of the Co3O4 /ZnO nanocomposites. These defects are gradually recovered after annealing at above 700 ℃, and their number is under the detection limit after annealing at 900 ℃. The same conclusion can be drawn from the coincidence Doppler broadening (CDB) measurements.

Keywords:

Authors and contacts

References

[1]
[2]
[3]
[4]
[5]
[6]
[7]
[8]
[9]
[10]
[11]
[12]
[13]
[14]
[15]
[16]
[17]
[18]
[19]
[20]
[21]
[22]
[23]
[24]
[25]
[26]
[27]
[28]
[29]
[30]
[31]
[32]
[33]
[34]
[35]
[36]
[37]
[38]
[39]
[40]
[41]
[42]
[43]

Cited By

[1]
[2]
[3]
[4]
[5]
[6]
[7]
[8]
[9]
[10]
[11]
[12]
[13]
[14]
[15]
[16]
[17]
[18]
[19]
[20]
[21]
[22]
[23]
[24]
[25]
[26]
[27]
[28]
[29]
[30]
[31]
[32]
[33]
[34]
[35]
[36]
[37]
[38]
[39]
[40]
[41]
[42]
[43]

[1]	Gao Xu-Dong, Yang De-Cao, Wei Wen-Jing, Li Gong-Ping.Simulation study of electron beam irradiation damage to ZnO and TiO₂. Acta Physica Sinica, 2021, 70(23): 234101.doi:10.7498/aps.70.20211223
[2]	Luo Chang-Wei, Qiu Meng-Lin, Wang Guang-Fu, Wang Ting-Shun, Zhao Guo-Qiang, Hua Qing-Song.Ions beam induced luminescence study of variation of defects in zinc oxide during ion implant and after annealing. Acta Physica Sinica, 2020, 69(10): 102901.doi:10.7498/aps.69.20200029
[3]	Zhang Li-Li, Xia Tong, Liu Gui-An, Lei Bo-Cheng, Zhao Xu-Cai, Wang Shao-Xia, Huang Yi-Neng.Electronic and optical properties of n-pr co-doped anatase TiO₂from first-principles. Acta Physica Sinica, 2019, 68(1): 017401.doi:10.7498/aps.68.20181531
[4]	Xu Jia-Nan, Chen Huan-Ming, Pan Feng-Chun, Lin Xue-Ling, Ma Zhi, Chen Zhi-Peng.Electronic structures and ferroelectric properties of Ba-doped ZnO. Acta Physica Sinica, 2018, 67(10): 107701.doi:10.7498/aps.67.20172263
[5]	Zhang Li-Juan, Zhang Chuan-Chao, Liao Wei, Liu Jian-Dang, Gu Bing-Chuan, Yuan Xiao-Dong, Ye Bang-Jiao.Influence of deuteration on the KH2PO4 crystal micro-defects characterization by using positron annihilation spectroscopy. Acta Physica Sinica, 2015, 64(9): 097802.doi:10.7498/aps.64.097802
[6]	Li Ming-Jie, Gao Hong, Li Jiang-Lu, Wen Jing, Li Kai, Zhang Wei-Guang.Electrical properties of single ZnO nanobelt in low temperature. Acta Physica Sinica, 2013, 62(18): 187302.doi:10.7498/aps.62.187302
[7]	Liu Wei-Jie, Sun Zheng-Hao, Huang Yu-Xin, Leng Jing, Cui Hai-Ning.Electronic structures and optical properties of rare earth element (Yb) with different valences doped in ZnO. Acta Physica Sinica, 2013, 62(12): 127101.doi:10.7498/aps.62.127101
[8]	Zhang Fu-Chun, Zhang Wei-Hu, Dong Jun-Tang, Zhang Zhi-Yong.Electronic structure and magnetism of Cr-doped ZnO nanowires. Acta Physica Sinica, 2011, 60(12): 127503.doi:10.7498/aps.60.127503
[9]	Zhou Kai, Li Hui, Wang Zhu.Defects in proton-irradiated Zn-doped GaSb studied by positron annihilation and photoluminescence. Acta Physica Sinica, 2010, 59(7): 5116-5121.doi:10.7498/aps.59.5116
[10]	Bi Yan-Jun, Guo Zhi-You, Sun Hui-Qing, Lin Zhu, Dong Yu-Cheng.The electronic structure and optical properties of Co and Mn codoped ZnO from first-principle study. Acta Physica Sinica, 2008, 57(12): 7800-7805.doi:10.7498/aps.57.7800
[11]	Duan Man-Yi, Xu Ming, Zhou Hai-Ping, Chen Qing-Yun, Hu Zhi-Gang, Dong Cheng-Jun.Electronic structure and optical properties of ZnO doped with carbon. Acta Physica Sinica, 2008, 57(10): 6520-6525.doi:10.7498/aps.57.6520
[12]	Li Hui, Xie Er-Qing, Zhang Hong-Liang, Pan Xiao-Jun, Zhang Yong-Zhe.Optical properties of ZnO and MgxZn1－xO nanoparticles prepared by flame spray synthesis. Acta Physica Sinica, 2007, 56(6): 3584-3588.doi:10.7498/aps.56.3584
[13]	Duan Man-Yi, Xu Ming, Zhou Hai-Ping, Shen Yi-Bin, Chen Qing-Yun, Ding Ying-Chun, Zhu Wen-Jun.First-principles study on the electronic structure and optical properties of ZnO doped with transition metal and N. Acta Physica Sinica, 2007, 56(9): 5359-5365.doi:10.7498/aps.56.5359
[14]	Li Yong, Sun Cheng-Wei, Liu Zhi-Wen, Zhang Qing-Yu.Study of ZnO film growth by reactive magnetron sputtering using plasma emission spectra. Acta Physica Sinica, 2006, 55(8): 4232-4237.doi:10.7498/aps.55.4232
[15]	Liu Xue-Chao, Shi Er-Wei, Song Li-Xin, Zhang Hua-Wei, Chen Zhi-Zhan.Magnetic and optical properties of Co doped ZnO powders synthesized by solid-state reaction. Acta Physica Sinica, 2006, 55(5): 2557-2561.doi:10.7498/aps.55.2557
[16]	Chen Zhi-Quan, Kawasuso Atsuo.Vacancy-type defects induced by He-implantation in ZnO studied by a slow positron beam. Acta Physica Sinica, 2006, 55(8): 4353-4357.doi:10.7498/aps.55.4353
[17]	Yang Chun, Li Yan-Rong, Yan Qi-Li, Liu Yong-Hua.Effects of atomic defects of α-Al2O3(0001) on ZnO adsorption. Acta Physica Sinica, 2005, 54(5): 2364-2368.doi:10.7498/aps.54.2364
[18]	Yang Chun, Yu Yi, Li Yan-Rong, Liu Yong-Hua.Temperature effect on the adsorption, diffusion and initial growth mode of ZnO/Al2O3(0001) from first principles. Acta Physica Sinica, 2005, 54(12): 5907-5913.doi:10.7498/aps.54.5907
[19]	Yuan Hong-Tao, Zhang Yao, Gu Jing-Hua.A study on the in-situ growth of highly oriented ZnO whisker. Acta Physica Sinica, 2004, 53(2): 646-650.doi:10.7498/aps.53.646
[20]	Guo Zeng-Bao.. Acta Physica Sinica, 2002, 51(10): 2344-2348.doi:10.7498/aps.51.2344

Catalog

Vol. 60, Issue 10 - 2011-05-20

Metrics

Abstract views:8539
PDF Downloads:534
Cited By:0

Search

Article

留言板

Abstract

Authors and contacts

References

Cited By

Catalog

Metrics

Authors

Referees

About Journal

About

Search

Article

留言板

Abstract

Authors and contacts

References

Cited By

Catalog

Metrics

Publishing process

Authors

Referees

About Journal

About