稀土三元配合物粉末和凝胶共发光效应的光声光谱研究

来源 :化学物理学报 | 被引量 : 0次 | 上传用户:xiaolaohu_521
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
合成了Eu(TTA) 3 ·Phen和Eu0 .8Y0 .2 (TTA) 3 ·Phen固体配合物微晶粉末及其掺杂的SiO2 凝胶样品 .在30 0~ 80 0nm测定并解释了其光声光谱 .在配体吸收处 ,Eu0 .8Y0 .2 (TTA) 3 ·Phen的光声强度低于Eu(TTA) 3 ·Phen的光声强度 ;而对于配合物掺杂的凝胶样品 ,则情况相反 .Y3 + 的引入改变了配合物的弛豫过程 ,且配合物在粉末和凝胶状态下 ,弛豫历程不尽相同 .结合荧光光谱研究了标题化合物的发光特性 ,并建立了能量传递模型 . Eu (TTA) 3 · Phen and Eu0 .8Y0.2 (TTA) 3 · Phen solid complex microcrystalline powders and their doped SiO2 gel samples were synthesized and their photoacoustic properties were measured and explained at 30 0 ~ 80 0 nm The photoacoustic intensity of Eu0.8Y0.2 (TTA) 3 · Phen was lower than the photoacoustic intensity of Eu (TTA) 3 · Phen at the absorption of the ligand, whereas for the gel-doped samples, On the contrary, the introduction of Y3 + changed the relaxation process of the complexes, and the complexes showed different relaxation processes in powder and gel state.The luminescence properties of the title compounds were studied by fluorescence spectroscopy, and the energy transfer model .
其他文献
许多高考试题是立足于基础,源于教材,高于教材的,尤其是对圆锥曲线性质考查的一些试题来自于教材例、习题,通过推广引申,课本例习题可得到更一般的性质,这也是考试命题的重要
解析几何中有很多定值问题,笔者最近从一道有关圆的初中平面几何题出发,通过猜想、类比、推理,发现了有心二次曲线的一个定值. There are many fixed value problems in ana
The authors study the asymptotic behaviour of solutions of the heat equation and a number of evolution equations using scaling techniques. It is proved that in
The equipartition of energy applied in binary mixture of granular flow is extended to granular flow withnon-uniform particles. Based on the fractal characterist
The authors study the regularity of solutions of the GFD-Stokes problem and of some second order linear elliptic partial differential equations related to the P
The liquid crystallinity of poly(N-vinylcarbazole) was studied by using powder X-ray diffraction, polarized optical microscopy, and differential scanning calori
Four strains of Cylindrotheca (B156, B164, B196, and B200) wereharvested at three phases in the growth curve and their total lipid and fatty acid composition we
A convex n-body C is said to be exposable to a set D of a few directions if there is a linear transformation L: En → En such that L(C) and each body isometric
用(EHT)紧束缚能带计算方法计算了( -TiAl及其掺杂合金的原子间成键强度,并依据键强度建立了判断掺杂原子取代位置的模型.掺杂原子的位置应根据取代前后的键强度相近的取代方
A novel method for preparing silver nanoelectrode ensembles (SNEEs) and gold nanoelectrode ensembles (GNEEs) has been developed. Silver colloid particles were