材料科学
纳米颗粒
傅里叶变换红外光谱
共价键
螯合作用
透射电子显微镜
化学工程
吸收(声学)
发光
光化学
分析化学(期刊)
纳米技术
光电子学
有机化学
化学
复合材料
冶金
工程类
作者
Weimin Huang,Peng Jiang,Chenyang Wei,Dazhong Zhuang,Jianlin Shi
标识
DOI:10.1557/jmr.2008.0243
摘要
Dopamine covalently chelated ZnO nanoparticles were synthesized by a nonaqueous one-step chemical process at a temperature as low as 60 °C. The formation of ZnO/dopamine hybrid structure was proved by x-ray powder diffraction (XRD), transmission electron microscopy (TEM), and Fourier transform infrared (FTIR) techniques. Detailed absorption, luminescence, and time-resolved decay studies were performed for these ZnO/dopamine hybrid nanoparticles. We observed an enhanced green emission, which could be assigned to a new band-gap emission based on the fast of nanosecond lifetime of the green emission. Our results demonstrated that the change of optical properties of ZnO nanoparticles after covalently chelated by dopamine ligands is closely associated with the formation of new band structure.
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