Synthesis of Phosphonic Acid Ligands for Nanocrystal Surface Functionalization and Solution Processed Memristors
作者:Jonathan De Roo、Zimu Zhou、Jiaying Wang、Loren Deblock、Alfred J. Crosby、Jonathan S. Owen、Stephen S. Nonnenmann
DOI:10.1021/acs.chemmater.8b03768
日期:2018.11.13
2-hexyldecyl, 2-[2-(2-methoxyethoxy)ethoxy]ethyl, oleyl, and n-octadecyl phosphonic acid and used them to functionalize CdSe and HfO2 nanocrystals. In contrast to branched carboxylic acids, postsynthetic surface functionalization of CdSe and HfO2 nanocrystals was readily achieved with branched phosphonic acids. Phosphonic acid capped HfO2 nanocrystals were subsequently evaluated as memristors using
在这里,我们合成了2-乙基己基,2-己基癸基,2- [2-(2-甲氧基乙氧基)乙氧基]乙基,油基和正十八烷基膦酸,并用它们来官能化CdSe和HfO 2纳米晶体。与支链羧酸相反,使用支链膦酸很容易实现CdSe和HfO 2纳米晶体的合成后表面功能化。随后使用导电原子力显微镜将膦酸封端的HfO 2纳米晶体评估为忆阻器。我们发现2-乙基己基膦酸是一种优异的配体,结合了高的胶体稳定性和紧凑的配体壳,可产生创纪录的低工作电压,有望应用于柔性电子产品。