采用化学水浴法制备了结构为CdS/CdS的薄膜,并结合电子束真空蒸发法,在两层CdS之间沉积一层Dy单质制备了结构为CdS/Dy/CdS的Dy掺杂薄膜.XRD和SEM测试表明,未掺杂的薄膜为沿(111)晶面择优生长的立方相闪锌矿结构,但是含有Dy掺杂层的CdS薄膜则为立方相和六方相的混合结构,并且掺Dy后CdS的晶粒尺寸和晶格常数变大.XPS分析表明,两种样品均富Cd,掺Dy有助于降低薄膜中O和C的含量,进而抑制薄膜中氧化物的形成;未掺杂时薄膜表面和内部Cd、S的原子比分别为1∶0.63和1∶0.71,掺Dy后分别提高到1∶0.81和1∶0.83,更接近CdS的化学计量比,而且组分更加均匀.
参考文献
| [1] | Shen, C.;Chu, J.;Qian, F.;Zou, X.;Zhong, C.;Li, K.;Jin, S. .High color rendering index white LED based on nano-YAG:Ce ~(3+) phosphor hybrid with CdSe/CdS/ZnS core/shell/shell quantum dots[J].Journal of Modern Optics,2012(13/14):1199-1203. |
| [2] | L. Weinhardt;Th. Gleim;O. Fuchs;C. Heske;E. Umbach;M. Bar;H.-J. Muffler;Ch.-H. Fischer;M. C. Lux-Steiner;Y. Zubavichus;T. P. Niesen;F. Karg .CdS and Cd(OH)_(2) formation during Cd treatments of Cu(In,Ga)(S,Se)_(2) thin-film solar cell absorbers[J].Applied physics letters,2003(4):571-573. |
| [3] | Mahdi, M.A.;Hassan, J.J.;Ng, S.S.;Hassan, Z.;Ahmed, N.M. .Synthesis and characterization of single-crystal CdS nanosheet for high-speed photodetection[J].Physica, E. Low-dimensional systems & nanostructures,2012(7/8):1716-1721. |
| [4] | H. Metin;R. Esen .Annealing studies on CBD grown CdS thin films[J].Journal of Crystal Growth,2003(1/2):141-148. |
| [5] | Bacaksiz, E;Tomakin, M;Altunbas, M;Parlak, M;Colakoglu, T .Structural, optical and magnetic properties of Cd(1-x)CoxS thin films prepared by spray pyrolysis[J].Physica. B, Condensed Matter,2008(19/20):3740-3745. |
| [6] | Hani Khallaf;Guangyu Chai;Oleg Lupan;Lee Chow;S. Park;Alfons Schulte .Characterization Of Gallium-doped Cds Thin Films Grown By Chemical Bath Deposition[J].Applied Surface Science: A Journal Devoted to the Properties of Interfaces in Relation to the Synthesis and Behaviour of Materials,2009(7):4129-4134. |
| [7] | Acosta DR;Magana CR;Martinez AI;Maldonado A .Structural evolution and optical characterization of indium doped cadmium sulfide thin films obtained by spray pyrolysis for different substrate temperatures[J].Solar Energy Materials and Solar Cells: An International Journal Devoted to Photovoltaic, Photothermal, and Photochemical Solar Energy Conversion,2004(1/2):11-20. |
| [8] | 李泓霖,张仲,吕英波,黄金昭,张英,刘如喜.第一性原理研究稀土掺杂ZnO结构的光电性质[J].物理学报,2013(04):399-405. |
| [9] | 安晓晖,李蓉萍,田磊,何志刚,吴蓉,李忠贤.掺Gd-CdTe薄膜的XPS研究[J].稀土,2012(05):27-31. |
| [10] | Bitnar B.;Durisch W.;Mayor JC.;Sigg H.;Tschudi HR. .Characterisation of rare earth selective emitters for thermophotovoltaic applications[J].Solar Energy Materials and Solar Cells: An International Journal Devoted to Photovoltaic, Photothermal, and Photochemical Solar Energy Conversion,2002(3):221-234. |
| [11] | 丁志杰,郭雨,潘守华,郭腾,陈君华.掺铈纳米TiO2的制备及其光催化性能研究[J].稀土,2012(06):35-40. |
| [12] | 田磊,李蓉萍,冯松,安晓晖,任愿,夏中秋,邹凯,刘永生.La掺杂对CdS薄膜性能的影响[J].真空科学与技术学报,2013(01):73-76. |
| [13] | 陈海燕,杨晓玲,罗庇荣,刘应开.CdS及其稀土掺杂纳米带的制备与发光性质的研究[J].功能材料,2010(01):115-117. |
| [14] | 李忠贤,李蓉萍,吴蓉.Dy掺杂ZnTe薄膜的结构及光学特性[J].稀土,2011(01):50-53. |
| [15] | 吴蓉,李蓉萍,何志刚,安晓晖,李忠贤.Dy掺杂对ZnSe薄膜微结构的影响[J].稀土,2011(03):60-63. |
| [16] | Kadam LD.;Patil PS. .Thickness-dependent properties of sprayed cobalt oxide thin films[J].Materials Chemistry and Physics,2001(1/3):225-232. |
| [17] | Ramaiah KS.;Hill AE.;Tomlinson RD.;Bhatnagar AK.;Pilkington RD. .Structural and optical investigations on CdS thin films grown by chemical bath technique[J].Materials Chemistry and Physics,2001(1/3):22-30. |
| [18] | 文美兰.X射线光电子能谱的应用介绍[J].化工时刊,2006(08):54-56. |
| [19] | 刘高斌,郭江,冯庆,刘亚静,王万录,廖克俊.硫化镉薄膜的XPS研究[J].光电子技术,2002(03):141-144. |
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