无机材料学报

• 研究论文 • 上一篇    下一篇

室温生物诱导合成硒化铅纳米半导体

王娜1, 苏慧兰1, 董群1, 张荻1, 赖奕坚2   

  1. 1. 上海交通大学金属基复合材料国家重点实验室, 上海 200030; 2. 上海交通大学分析测试中心, 上海 200030
  • 收稿日期:2006-04-17 修回日期:2006-08-28 出版日期:2007-03-20 网络出版日期:2007-03-20

Bio-induced Fabrication of PbSe Nano-semiconductors at Room Temperature

WANG Na1, SU Hui-Lan1, DONG Qun1, ZHANG Di1, LAI Yi-Jian2   

  1. 1. State Key Laboratory of Metal Matrix Composites, Shanghai Jiaotong University, Shanghai 200030, China; 2. Instrumental Analysis Center, Shanghai Jiaotong University, Shanghai 200030, China
  • Received:2006-04-17 Revised:2006-08-28 Published:2007-03-20 Online:2007-03-20

摘要: 以醋酸铅和硒代硫酸钠作为反应物, 蛋壳薄膜作为生物活性载体, 设计一种在生物活性材料参与下室温原位合成硒化铅纳米团簇的新方法. 利用蛋膜上特定周期性分布的大分子与无机前驱体离子之间的螯合作用和电荷作用, 引导和控制硒化铅微晶在蛋膜载体上的形成、聚集和分布, 成功制得结晶完善且在蛋膜上均匀分布的具有规则形状的硒化铅纳米团簇. 紫外-可见光谱和荧光光谱分析表明所制备的硒化铅纳米粒子具有均匀的小尺寸, 表现为明显的量子尺寸效应.

关键词: 硒化铅, 纳米团簇, 蛋膜, 生物诱导合成

Abstract: Lead selenide nanoclusters and nanocubes were successfully in situ prepared through a room-temperature biosubstrate-induced approach employing the Pb(Ac)2 solution, Na2SeSO3 solution as the reactants, and the eggshell membrane (ESM), which contains many unique and periodically distributed functional groups, as the live biomaterial. Results show that under the complexation and electronic roles of these macromolecules with inorganic precursor ions, PbSe nanocrystallites firstly process oriented-formation, controlled-congregation and periodic-distribution on the mantle of ESM fibers, then they are self-assembled into the uniform nanoclusters with well crystalline, which are orderly distributed on the surface of ESM. The results of UV-Vis and PL analysis also indicate PbSe nanoparticles prepared are with fine, uniform size and nice distribution.

Key words: lead selenide, nanoclusters, eggshell membrane, single crystal

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