Nanocrystal size control by bath temperature in electrodeposited CdSe thin films
Xu, DS; Guo, GL; Guo, YG; Zhang, YL; Gui, LL
AbstractThe bath temperature dependence of the structure, composition and surface morphology of CdSe thin films electrodeposited on indium-doped tin oxide (ITO) coated glass substrates from a DMSO solution containing CdCl2 and elemental Se has been investigated. X-Ray diffraction (XRD) and optical absorption results demonstrated that by lowering the bath temperature in the range of 180-130degreesC, the nanocrystal sizes of the as-prepared films continuously decreased and crystal quality was improved. Quantitative analysis of the XPS results indicated that the calculated O:Se ratios also decreased with a lowering of the bath temperature. After annealing in an argon atmosphere at 500degreesC for 30 min, the XRD pattern presents a preferred (002) orientation of the hexagonal wurtzite structure, in contrast to the zinc blende structure for the as-deposited films. Also, this preferred orientation was strongly dependent on the bath temperature used in the electrodeposition process. Interestingly, the morphology of the crystalline grains deposited at lower bath temperatures changed from a cauliflower pattern for the as-deposited film to a globular pattern for the annealed film, and the average grain sizes of the annealed film are about 1 mum.
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WOS IDWOS:000180805300038
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Cited Times:15[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorXu, DS
Affiliation1.Peking Univ, Coll Chem & Mol Engn, State Key Lab Struct Chem Unstable & Stable Speci, Beijing 100871, Peoples R China
2.Qingdao Univ, Coll Chem Engn & Technol, Dept Appl Chem, Qingdao 266071, Peoples R China
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Xu, DS,Guo, GL,Guo, YG,et al. Nanocrystal size control by bath temperature in electrodeposited CdSe thin films[J]. JOURNAL OF MATERIALS CHEMISTRY,2003,13(2):360-364.
APA Xu, DS,Guo, GL,Guo, YG,Zhang, YL,&Gui, LL.(2003).Nanocrystal size control by bath temperature in electrodeposited CdSe thin films.JOURNAL OF MATERIALS CHEMISTRY,13(2),360-364.
MLA Xu, DS,et al."Nanocrystal size control by bath temperature in electrodeposited CdSe thin films".JOURNAL OF MATERIALS CHEMISTRY 13.2(2003):360-364.
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