化学
纳米晶
兴奋剂
格子(音乐)
纳米结构
半导体
纳米技术
胶体
化学物理
凝聚态物理
物理化学
光电子学
物理
材料科学
声学
作者
Dingan Chen,Ranjani Viswanatha,Grace L. Ong,Renguo Xie,Mahalingam Balasubramaninan,Xiaogang Peng
摘要
Controlled doping is a critical step toward various unique nanostructures. This report shall demonstrate that doping chemistry of colloidal nanocrystals is much more complex than what has been proposed in the existing experimental and theoretical reports. Four individual processes, namely "surface adsorption", "lattice incorporation", "lattice diffusion", and "lattice ejection", will be identified, each of which possesses its own critical temperature. A given type of host nanocrystals can be switched from being impossible to dope to becoming successfully doped. The key is to program the reaction temperature to accommodate all elementary processes.
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