| 电化学沉积CdSe纳晶薄膜的性能及沉积机理 |
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| 引用本文： | 王维波,林瑞峰,林原,萧绪瑞,陈旭光,杨勇.电化学沉积CdSe纳晶薄膜的性能及沉积机理[J].影像科学与光化学,1998,16(2):177-181. |
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| 作者姓名： | 王维波 林瑞峰 林原 萧绪瑞 陈旭光 杨勇 |
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| 作者单位： | 1. 中国科学院感光化学研究所, 光电化学中心, 北京100101;2. 厦门大学固体表面物理化学国家重点实验室, 厦门361005 |
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| 基金项目： | 国家自然科学基金(批准号:29403026)和中国科学院感光化学所光化学开放实验室资助 |
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| 摘 要： | 电化学沉积是半导体薄膜制备的一种简便方法,常用于Ⅱ-族化合物半导体薄膜的制备.通过电沉积条件的适当改变可成功地在导电衬底上制备半导体纳晶薄膜1].CdSe薄膜作为一种透光性好、导电性好的半导体材料,可进行光学性能和光电性能方面的研究,而半导体纳晶多孔电极的光电化学特性与体材料之间有很大不同.本文采用电化学沉积法制备了CdSe纳晶薄膜并研究了其性能,通过扫描隧道显微镜(STM)形貌分形分析进一步研究其沉积机理.
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| 关 键 词： | CdSe纳晶薄膜 电化学沉积 扫描隧道显微镜 分形维度 |
| 收稿时间： | 1997-08-18 |
THE PROPERTIES OF THE ELECTROCHEMICAL DEP-OSITED CdSe NANOCRYSTALLINE THIN FILMS AND THE MACHANISM OF DEPOSITION |
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| WANG Weibo,LIN Ruifeng,LIN Yuan,XIAO Xurui,CHEN Xuguang,YANG Yong.THE PROPERTIES OF THE ELECTROCHEMICAL DEP-OSITED CdSe NANOCRYSTALLINE THIN FILMS AND THE MACHANISM OF DEPOSITION[J].Imaging Science and Photochemistry,1998,16(2):177-181. |
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| Authors: | WANG Weibo LIN Ruifeng LIN Yuan XIAO Xurui CHEN Xuguang YANG Yong |
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| Affiliation: | 1. The Center of Photoelectrochemistry, Institute of Photographic Chemistry, The Chinese Academy of Sciences, Beijing 100101, P. R. China;2. State Key Laboratory for Physical Chemistry of the Solid Surface, Xiamen University, Xiamen 361005, P. R. China |
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| Abstract: | Nanocrystalline CdSe thin films were prepared by electrochemical deposition. SEM and XRD measurements indicate that this thin film was composed of CdSe nanocrystalline particles. A blue shift in the absorption onset is seen for the thin film with quantum size effects. Laser scanning microzone photocurrent spectra were used to observe the effects of microstructure on photoelectrochemical properties of CdSe film. From the fractal characteristic of STM images recorded at different stages of electrochemical deposition. Fractal dimension was calculated to be 1.50. Kinetic clusters aggregation model was suggested for electrochemical deposition of CdSe nanocrystalline thin film in terms of kinetic theories of fractal growth. |
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| Keywords: | CdSe nanocrystalline electrochemical deposition scanning tunnelling microscopy fractal dimension |
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