使用化学浴沉积(CBD)在硫酸镉-硫脲的氨溶液中,成功地制备出了高质量的CdS薄膜.用扫描电境(SEM)、X射线衍射(XRD)及紫外-可见-近红外光谱仪对其进行了测试分析,结果表明,NH3摩尔浓度对生成CdS薄膜的表面致密性影响很大,当NH3摩尔浓度比较大时,无法生成连续致密的胶体颗粒薄膜,反应体系中S2-和Cd2+溶液的摩尔浓度增加,CdS胶体粒度增大.在相同NH3摩尔浓度下,随着S2-和Cd2+摩尔浓度比值([S2-]/[Cd2+])的增大,CdS胶体粒子粒度减小;透过光谱的峰位随着胶体粒子尺寸的减小向短波方向移动,当NH3摩尔浓度变化时,在一定的范围内改变CdS膜的透过率.将化学浴沉积(CBD)过程的研究从薄膜厚度优化改进为胶体粒子尺寸优化,促进了CBD技术的发展.
参考文献
| [1] | Houser O;Beisalski E .[J].Chem Zeitung,1910,34:1079. |
| [2] | Chu T L;Chu S S;Ferekides C et al.[J].Journal of Applied Physics,1991,70:7608. |
| [3] | Stolt L;Hedstrm J;Kessler J et al.[J].Applied Physics Letters,1993,62:597. |
| [4] | Sharma SN;Sharma RK;Sood KN;Singh S .Structural and morphological studies of chemical bath-deposited nanocrystalline CdS films and its alloys[J].Materials Chemistry and Physics,2005(2/3):368-375. |
| [5] | Blanco A;Lepez C;May R .[J].Applied Physics Letters,1998,73:1781. |
| [6] | Zhang H;Ma X;Xu J et al.[J].Journal of Crystal Growth,2004,263:372. |
| [7] | Zhang H.;Ma XY.;Xu J.;Niu JJ.;Sha J.;Yang DR. .Directional CdS nanowires fabricated by chemical bath deposition[J].Journal of Crystal Growth,2002(1/2):108-112. |
| [8] | Ortega-Borges R;Lincot D .[J].Journal of the Electrochemical Society,1993,140:3464. |
| [9] | Dona J M;Herrero J .[J].Journal of the Electrochemical Society,1994,144:4081. |
| [10] | Froment M;Lincot D .[J].Electrochimica Acta,1995,40:1293. |
| [11] | Breen ML.;Schwartz DK.;Apblett AW.;Woodward JT. .Direct evidence for an ion-by-ion deposition mechanism in solution growth of CdS thin films[J].Chemistry of Materials,1998(3):710-717. |
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%