Department of Physics, CIL, Assam University, Silchar, India.
J Fluoresc. 2011 May;21(3):1165-70. doi: 10.1007/s10895-010-0794-y. Epub 2011 Jan 8.
Copper nanoparticles have been prepared through the reduction of cupric ions by ethanol with linoleic acid as a capping agent. The morphology and structure of these nanoparticles have been investigated using transmission electron microscopy. The X-diffraction study shows that the nanoparticles are crystalline and mainly composed of face-centered cubic (fcc) copper with a narrow size distribution having an average size of 5 nm. Fluorescence spectra of these copper nanoparticles have been analysed which show two emission peak at 450 nm and 625 nm corresponding to the large energy band and small energy band respectively, when illuminated at 250 nm of an optical source.
通过乙醇还原铜离子，并用亚油酸作为包覆剂制备了铜纳米粒子。使用透射电子显微镜研究了这些纳米粒子的形态和结构。X 射线衍射研究表明，这些纳米粒子是结晶的，主要由面心立方（fcc）铜组成，具有窄的尺寸分布，平均尺寸为 5nm。分析了这些铜纳米粒子的荧光光谱，当用 250nm 的光源照射时，它们在 450nm 和 625nm 处分别显示出对应于大能带和小能带的两个发射峰。
