纳米晶体中稀土离子的发光性质及其变化机理研究
付作岭;董晓睿;盛天琦;侯利;张蕾
【期刊名称】《中国光学》 【年(卷),期】2015(000)001
【摘要】In recent years , the luminescence properties of the rare earth ions-doped nanocrystals become more and more popular because the rare earth luminescent nanocrystals have important applications in photolumines -cence, high-definition display, optoelectronic nano-devices, biological labeling, laser and scintillator etc..In this project , a series of different particle size , dispersion , controllable morphology rare earth ions-doped oxide ( fluoride ) micro-/nano-crystals were synthesized by soft chemistry synthesis method such as hydrothermal , sol-gel method et al..The luminescence properties were investigated by excitation spectra , emission spectra , diffuse reflectance spectra and high-resolution laser spectra in order to observe the changes of luminescent phe-nomenon with different size and chemical bond .The essential reason of the impact of luminescence behavior was also investigated by summary and classification .At the same time , theoretical calculations of optical prop-erties were performed by using density functional theory and complex crystal dielectric theory of chemical bond method with the combination of spectral experimental data , which can successfully explain the spectral shift rule and energy
纳米晶体中稀土离子的发光性质及其变化机理研究
