通过生物分子模板法制备了不同形貌的硫化铅纳米材料,对比实验发现半胱氨酸的添加量及铅-半胱氨酸前驱体的形貌对最终产物的生成有很大影响.通过控制半胱氨酸的加入量,制备了树枝状、分级结构及多臂硫化铅纳米材料,这些形貌的成功制备将对功能性纳米器件的组装有重要意义.所采用的生物分子模板法具有简单、环境友好等优势,有利于其它半导体纳米材料的大规模制备.
PbS nanostructures with various morphologies were successfully fabricated through a biomolecule-assisted method. It was found that the morphology of PbS nanostructures was greatly influenced by the addition of cysteine and the morphology of Pb-cysteine precursor. Dendritic, hierarchical and multi-armed PbS nanostructures were obtained by adjusting the amount of cysteine molecules. These well-defined nanostructures will be essential for the assembly of functional nanodevices. Furthermore, the bio-inspired strategy is quite simple and environmental friendly. As their scalability for mass production is feasible, the extension of this method to other important semiconductor materials will be open for further exploration.
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