Evolvement of soft templates in surfactant/cosurfactant system for shape control of ZnSe nanocrystals

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• 作者：Bo Hou^a ; Yongjun Liu^b ; Yanjuan Li^a ; Bo Yuan^b ; Mingfen Jia^a ; Fengzhi Jiang^a ; ^b ; ^{fengzhij@ynu.edu.cn}
• 关键词：ZnSe QDs ; Soft template ; Shape control ; Freeze-fracture
• 刊名：Materials Science and Engineering ; B
• 出版年：2012
• 期刊代码：76_09215107
• 类别：ch
• 出版时间：25 March, 2012
• 卷：177
• 期：5
• 页码：411-415
• 文件大小：920 K

摘要

The evolution of soft templates in the synthesis of ZnSe nanocrystals realized through a surfactant/cosurfactant system was investigated and a micelle formation process model was proposed. Through freeze-fracture electron microscopy, it was proven that template micelles were formed in the zinc precursors. Furthermore, it was found that a long stirring period was essential for achieving the lowest energy state of the soft templates which were used for synthesizing monodisperse ZnSe quantum dots.