采用脉冲激光沉积(PLD)法在Si(111)衬底上制备稀土Eu3+掺杂的ZnO薄膜材料,分别在纯氧和真空气氛中进行退火处理.XRD图谱中仅观察到尖锐的ZnO(002)衍射峰,表明ZnO∶Eu3+,Li+薄膜具有良好的c轴取向.薄膜的结构参数显示:在纯氧气氛中退火的样品具有较大的晶粒尺寸且应力较小,表明在纯氧中退火的样品具有较好的结晶质量.通过光致发光谱发现,在纯氧中退火的样品的IUV/IDL比值较大,说明在纯氧中退火的样品缺陷去除更充分,结晶质量更好.当用395 nm光激发样品时,仅发现Eu3+位于595 nm附近的5Do→7F1磁偶极跃迁峰.并没有发现Eu3+在613 nm附近的特征波长发射,表明掺杂的Eu3+占据了ZnO基质反演对称中心格位.
参考文献
| [1] | Shao Jingzhen;Dong Weiwei;Tao Ruhua.Characterization of mo-doped ZnO thin films prepared by sol-gel method[J].量子电子学报,201128(02):247-252. |
| [2] | Service R F.Will UV lasers beat the blues[J].SCIENCE,1997276:895-895. |
| [3] | Shind S S;Bhosale C H.N-doped ZnO based fast response ultraviolet photoconductive detector[J].Solid-State Electronics,201268:22-26. |
| [4] | Yun E J;Jung J W;Lee B C.Effects of O2 fraction on the properties of Al-doped ZnO thin films treated by high-energy electron beam irradiation[J].Journal of Alloys and Compounds,2010496:543-547. |
| [5] | Dong Weiwei;Tao Ruhua;Fang Xiaodong.Recent advances on ZnO-based films synthesized by pulsed laser deposition[J].量子电子学报,200623(01):1-9. |
| [6] | Ji Shulin;Yin Liangliang;Liu Guodong.Synthesis of rare earth ions-doped ZnO nanostructures with efficient host-guest energy transfer[J].J Phys Chem C,2009113(37):16439-16444. |
| [7] | Huang C Y;Lee Y J;Lin T Y.Direct formation of InN-codoped p-ZnO/n-GaN heterojunction diode by solgel spin-coating scheme[J].OPTICS LETTERS,201439(04):805-808. |
| [8] | Yang Lei;Tang Yuanhong;Hu Aiping.Raman scattering and luminescence study on arrays of ZnO doped with Tb3+[J].PHYSICA B,2008403(13-16):2230-2234. |
| [9] | Xue Daoqi;Zhang Junying;Yang Chun.PL and EL characterizations of ZnO:Eu3+,Li+ films derived by solgel process[J].Journal of Luminescence,2008128(04):685-689. |
| [10] | Wei X Q.Structural and optical properties of ZnO thin films fabricated on sapphier substrate by PLD[J].International Journal of Modern Physics B-Cosmology and Nuclear Physics,200721(11):1851-1860. |
| [11] | Bachir S;Azumak K;Kossanyi J.Photoluminescence of polycrystalline zinc oxide co-activated with trivalent rare earth ions and lithium.Insertion of rare-earth ions into zinc oxide[J].Journal of Luminescence,199775(01):35-49. |
| [12] | Deng H D;Li G C;Dai Q F.Size dependent competition between second harmonic generation and twophoton luminescence observed in gold nano-particles[J].NANOTECHNOLOGY,201324(07):075201. |
| [13] | Jin Yunjiang;Yu Qingxuan;Liu Shujian.Effect of the structures on the enhancement of ultra-violet photoluminescence intensity in Ag doped ZnO film[J].量子电子学报,200825(01):43-48. |
| [14] | Fu Z X;Guo C X;Lin B X.Cathodoluminescence of ZnO films[J].Chinese Physics Letters,199815(06):457-459. |
| [15] | Alvarez Q J;Mart(i)nez E;Pérez T E.Temperature dependent thermal conductivity of polycrystalline ZnO films[J].Journal of Applied Physics,2010107(06):063713. |
| [16] | Wei Xianqi;Wang Yongjie;Zhang Zhong.Effect of annealing on optical properties of ZnO thin films[J].红外与毫米波学报,201130(03):224-228. |
| [17] | Mondia J P;Sharma R;Schfer J.An electro-dynamically confined single ZnO tetrapod laser[J].Applied Physics Letters,200893(12):121102. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%