| 复合纳米粒子SnO2/CdS的制备及性能研究 |
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| 引用本文： | 徐斌,程虎民,王艳芹,马季铭. 复合纳米粒子SnO2/CdS的制备及性能研究[J]. 物理化学学报, 1999, 15(10): 925-929. DOI: 10.3866/PKU.WHXB19991012 |
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| 作者姓名： | 徐斌 程虎民 王艳芹 马季铭 |
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| 作者单位： | Department of Chemistry,Peking University,Beijing 100871 |
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| 基金项目： | 国家自然科学基金!资助项目 ( 2 96730 0 3) |
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| 摘 要： | 由湿化学方法制备了包覆型SnO2 /CdS复合纳米粒子 .用ICP、XRD及TEM测定了样品的组成和平均晶粒尺寸 ,并通过HRTEM直接观察到样品的包覆结构 .与纯SnO2 纳米粒子相比较 ,SnO2 /CdS复合纳米粒子在波长为 36 0 - 5 80nm范围内有更强的吸收 ;由该复合纳米粒子制得的电极呈现出良好的光电转换特性 ,其最大IPCE值达 40 .9% ,远大于纯SnO2 纳米电极的IPCE( 0 .6 5 % ) ,而且光响应范围也从纯SnO2 的 30 0 - 4 0 0nm拓展到 30 0 - 5 5 0nm .
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| 关 键 词： | SnO2-CdS 复合纳米粒子 光电转换 |
| 收稿时间： | 1998-12-23 |
| 修稿时间： | 1999-04-20 |
Preparation and Properties of Nanosized Composite Particle SnO2/CdS |
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| Xu Bin,Cheng Humin,Wang Yanqin,Ma Jiming. Preparation and Properties of Nanosized Composite Particle SnO2/CdS[J]. Acta Physico-Chimica Sinica, 1999, 15(10): 925-929. DOI: 10.3866/PKU.WHXB19991012 |
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| Authors: | Xu Bin Cheng Humin Wang Yanqin Ma Jiming |
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| Affiliation: | Department of Chemistry,Peking University,Beijing 100871 |
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| Abstract: | A new coated type of SnO 2/CdS nanosized composite particles was prepared by wet chemical method. The composition, structure and size of the product were determined by XRD, ICP, TEM and HRTEM. Compared with pure SnO 2 particle, it has stronger absorption in the range of longer wavelength (360～580nm) and shows good photo electrochemical character. The maximum value of IPCE was 40.9%, much greater than that of pure SnO2 electrode, 0.65%. The range photoelectric response has been broadened from 300～400nm to 300～550nm. |
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| Keywords: | SnO 2/CdS Composite nanoparticle Photoelectric conversion |
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