采用磁控溅射法在载玻片上制备了不同Cr掺杂浓度的ZnO薄膜,并对其紫外发光性能做了初步研究.XRD结果表明,所制备的样品具有纤锌矿结构,呈c轴择优取向生长;透射谱表明,改变Cr掺杂浓度可以使ZnO薄膜的吸收边向短波方向移动,并且薄膜的禁带宽度连续可调;光致发光(PL)谱表明,所有样品的PL谱由发光中心位于370nm的紫外发光峰组成,且该峰的峰位蓝移,与吸收边缘移动的结果吻合.2.0%(原子分数,下同)的Cr掺杂可以提高ZnO的紫外发光强度,而过量的Cr掺杂反而会降低其紫外发光强度.
参考文献
| [1] | 赵俊锋,陈建华,王旭红,沈晓冬,陆春华.Ni掺杂ZnO晶体结构和红外光谱特性的研究[J].材料导报,2009(06):29-31. |
| [2] | 郭米艳,张萌,肖宗湖.YZO薄膜的Sol-gel制备及其性能[J].材料导报,2009(02):83-86. |
| [3] | Liping Zhu;Jiesheng Li;Zhizhen Ye;Haiping He;Xiaojun Chen;Binghui Zhao .Photoluminescence Of Ga-doped Zno Nanorods Prepared By Chemical Vapor Deposition[J].Optical materials,2008(2):237-240. |
| [4] | Xue H;Xu X L;Chen Y et al.Influence of Ag-doping on the optical properties of ZnO films[J].Applied Surface Science,2008,255(05):1806. |
| [5] | Choi Mu Hee;Ma Tae Young .Erbium concentration effects on the structural and photoluminescence properties of ZnO:Er films[J].Materials Letters,2008,62(12-13):1835. |
| [6] | X.B. Wang;C. Song;K.W. Geng;F. Zeng F. Pan .Photoluminescence and Raman scattering of Cu-doped ZnO films prepared by magnetron sputtering[J].Applied Surface Science: A Journal Devoted to the Properties of Interfaces in Relation to the Synthesis and Behaviour of Materials,2007(16):6905-6909. |
| [7] | Li Luyan;Liu Hui;Luo Xiaoguang et al.Ferromagnetism in polycrystalline Cr-doped ZnO films:Experiment and theory[J].Song Solid State Commun,2008,146(09):420. |
| [8] | Elanchezhiyan J;Bhuvana K P;Gopalakrishnan N et al.Realization of room temperature ferromagnetism in Zn1-x-CrxO thin films growth by RF magnetron sputtering[J].Journal of Alloys and Compounds,2009,468(1-2):7. |
| [9] | Tetsuya Yamamoto;Hiroshi Katayama-Yoshida .Unipolarity of ZnO with a wide-band gap and its solution using codoping method[J].Journal of Crystal Growth,2000,214-215(02):55. |
| [10] | Parmod Sagar;P.K. Shishodia;R.M. Mehra;H. Okada;Akihiro Wakahara;Akira Yoshida .Photoluminescence and absorption in sol-gel-derived ZnO films[J].Journal of Luminescence: An Interdisciplinary Journal of Research on Excited State Processes in Condensed Matter,2007(2):800-806. |
| [11] | Yang Zhang;Ziyu Zhang;Bixia Lin;Zhuxi Fu;Jin Xu .Effects of Ag Doping on the Photoluminescence of ZnO Films Grown on Si Substrates[J].The journal of physical chemistry, B. Condensed matter, materials, surfaces, interfaces & biophysical,2005(41):19200-19203. |
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