
[物][分化] 光电子能谱法;电光子分光光谱
Analyzed were the characteristics of interface of both ZnO varistor and pure ZnO ceramic by X-ray photoelectron spectroscopy (XPS).
采用X射线光电子能谱(XPS)对比分析纯氧化锌陶瓷和氧化锌压敏电阻的界面特性。
Xray photoelectron spectroscopy(XPS)is one of the most powerful and useful tool for chemical composition analysis on both wood and fiber surfaces.
表面光电子能谱分析是固体木材及纤维表面化学组成分析最有效及最灵敏的工具之一。
With the technique of x-ray photoelectron spectroscopy(XPS) surface chemistry and adsorption mechanism of calcite from the laterite in Guizhou have been stu***d.
应用X射线光电子谱(XPS)技术,研究了贵州岩溶地区红土中方解石及氧化铁矿物表面化学特征及吸附机理。
The surface of Ni-Cr alloy after bacterial corrosion was examined with X-ray photoelectron spectroscopy(XPS) to find out different element contents.
运用X-射线光电子能谱技术(XPS),分析镍铬合金在电化学腐蚀后表面元素成分的变化。
X-ray diffraction(XRD), Atom force microscopy(AFM), X-ray photoelectron spectroscopy (XPS) and Current-Voltage(I-V) were adopted to characterize ZnO thin films.
用X射线衍射(XRD)、 原子力显微镜(AFM)、光电子能谱(XPS)和电流—电压(I-V)测试方法对生长的薄膜进行了表征。
X-ray photoelectron spectroscopy(XPS) and other surface analytical techniques were used to study the surface characteristics for three kinds of hydrated calcium silicates of different crystallinities.
本文运用X光电子能谱法(XPS法)及其它表面分析方法,对三种结晶程度不同的水化硅酸钙的表面特性进行了研究。
Then, the films were characterized with X ray photoelectron spectroscopy(XPS), X ray diffraction(XRD), ultraviolet visible light absorption spectroscopy, and atomic force microscopy(AFM).
用X光电子能谱、X射线衍射、紫外可见吸收光谱、原子力显微镜等手段对制备的薄膜进行了表征。
Surface properties of PVC were characterized by the contact angle, surface tension, X-ray photoelectron spectroscopy(XPS) and electron spin resonance(ESR).
等离子体改性前后PVC的表面特性通过接触角、表面张力、X-光电子能谱(XPS)、电子自旋共振(ESR)表征。
Three types of PAN - based and two types of rayon-based carbon fibers manufactured at home and abroad were analysed by X-ray photoelectron spectroscopy (XPS).
用互光电子能谱仪分析了日本、美国、前苏联和我国上海、吉林厂家生产的三种PAN基、两种粘胶基碳纤维的表面结构。
X-ray diffraction (XRD) and X-ray Photoelectron Spectroscopy (XPS) were used to analyze the material phase and the chemical structure on the surface of unbonded and bonded soil samples.
应用X射线衍射(XRD)及X射线光电子能谱(XPS)对土壤施用土壤粘合剂前后的物相及表面化学结构进行分析;
The adsorption behave of TATB in the two-component polymer solution of AS and F2314 have been explored by means of Gel Permeation Chromatography(GPC) and X-ray Photoelectron Spectroscopy (XPS).
采用凝胶渗透色谱(GPC)和X射线光电子能谱(XPS)研究了TATB炸药在AS/F2314两种组分的聚合物混合溶液的吸附行为。
So, let's start with talking about photoelectron spectroscopy.
那么,我们开始讲光电子能谱。
Intra molecule charge transfer is stu***d by changing the X ray power during X ray photoelectron spectroscopy experiment.
用光电子谱研究了X光辐照下酞菁铜分子内的电荷转移情况。
Both infrared spectroscopy (IR) and x-ray photoelectron spectroscopy (XPS) show that carboxylic acid groups have been introduced onto the carbon black surface.
红外光谱及X光电子能谱表明,臭氧氧化在碳黑表面引进了羧基基团。
Since that time, PES we've been able to actually measure these bond strengths by PES, photoelectron spectroscopy.
自从那时,我们就能够用,测量键的强度,光电子能谱。
What we're going to start with is discussing photoelectron spectroscopy, which is a spectroscopy technique that will give us some information about energy levels in multielectron atoms.
首先,我们将讨论,光电子能谱,通过这种技术,我们能够得到多电子原子的能级信息。
X-ray photoelectron spectroscopy and X-ray diffraction were used to analyze the chemical structure of the DLC films containing Ti.
通过X射线光电子能谱及X射线衍射表征了薄膜的化学结构。
X-ray photoelectron spectroscopy (XPS) indicated that the higher reaction activity of alkyl halide, the more alkyl substitution degree on hydroxyl group of chitosan.
对烷基化壳聚糖进行X射线光电子能谱分析表明,随着卤代烷试剂反应活性的增高,发生在壳聚糖羟基上的烷基取代反应增多。
The background of X ray Photoelectron spectroscopy (XPS) spectrum, which was often neglected in the past, may provide valuable information on surface morphology and depth profile.
光电子谱中的背景信号包含样品的信息,但过去往往被忽略。
The prepared product was characterized by X-ray diffraction(XRD), scanning electron microscopy(SEM), transmission electron microscope(TEM) and X-ray photoelectron spectroscopy(XPS).
利用X射线衍射(XRD)、扫描电镜(SEM)、透射电镜(TEM)和X射线光电子能谱(XPS)对制备的产品进行了表征。
The effectiveness of coating boron particles coated with HTPB was characterized by using FT-IR, X-ray photoelectron spectroscopy and transmission electron microscope.
经过红外光谱、X-光电子能谱、透射电镜等对包覆效果进行了表征。
The X-ray photoelectron spectroscopy (XPS) results indicated the presence of less than 0.1% of iron atoms at the nanoparticles surface.
X(射线光电子分光镜检查(XPS)结果表明,存在于纳米颗粒表面的铁原子不到0.1%。
XRD(X- Ray Diffraction) and XPS(X-Ray Photoelectron Spectroscopy) indicated that the inner core was metallic silver.
X射线衍射和光电子能谱分析表明,内核为单质银。
The coating phase structure and chemical composition were analyzed by X-ray Diffraction (XRD) and X-ray Photoelectron Spectroscopy (XPS) respectively;
利用X射线衍射仪、X射线光电子能谱仪(XPS)对涂层的相结构及涂层的化学成分进行了分析和讨论;
Through analyzing experimental results of X ray photoelectron spectroscopy (XPS), it is found that there exists neither strong hydrogen bond nor outstanding acid base interaction at these interfaces;
通过对实验结果分析,认为在该界面上不可能存在着强氢键和明显的酸碱作用;
There are four surface state bands in the gap. Among them, two occupied surface state bands have been confirmed by valence band spectra of synchrotron radiation photoelectron spectroscopy.
在带隙附近存在四个表面态带,其中的两个占有表面态带已由价带的同步辐射光电子能谱实验得到证实。
Based on the study of X-ray photoelectron spectroscopy of lead glass, it is found that the binding energy peaks of oxygen and silicon slightly shifted after implantation.
通过对铅玻璃和石英玻璃的X射线光电子能谱的详细研究,发现硼离子注入后氧和硅的结合能峰稍有位移。
Scientists in Germany used X-ray photoelectron spectroscopy to get a detailed image of the surface of a treated tooth.
德国的科学家利用X射线光电光谱得到了牙齿在氟化物处理后的表面细节图像。
光电子能谱(Photoelectron Spectroscopy)是一种基于光电效应原理的表面分析技术,主要用于研究材料的元素组成、化学状态及电子结构。当高能光子(如X射线或紫外光)照射样品时,材料中的电子被激发逸出成为光电子,通过测量这些光电子的动能分布,可推导出样品的电子结合能信息(来源:美国国家标准与技术研究院,NIST化学与化学技术数据部门)。
该技术包含两种主要类型:
技术原理可表述为: $$ E{text{结合能}} = h u - E{text{动能}} - phi $$ 其中$h u$为入射光子能量,$E_{text{动能}}$为测得光电子动能,$phi$为仪器功函数。该公式揭示了光电子能谱的能量守恒本质。
现代应用覆盖纳米材料表征、环境污染物检测及新能源材料开发等领域。例如在锂离子电池研究中,XPS可精确测定电极材料表面SEI膜的化学成分演化(来源:斯坦福大学材料与能源科学研究所)。
光电子能谱(Photoelectron Spectroscopy,简称PES)是一种通过分析物质表面被激发出的光电子能量分布,来研究材料元素组成、化学状态及电子结构的技术。以下是详细解释:
1. 基本原理
当高能光子(如X射线或紫外线)照射材料表面时,光子能量被电子吸收,若能量高于电子结合能,电子会脱离原子成为光电子。通过测量这些光电子的动能,可推算其结合能,公式为:
$$
E{text{结合能}} = h
u - E{text{动能}} - Phi
$$
其中,( h
u )为入射光子能量,( Phi )为仪器功函数。
2. 主要类型
3. 应用领域
4. 技术优势与局限
补充说明
光电子能谱常与电子能谱(如AES)联用,进一步扩展分析维度。若需具体仪器参数或实验案例,可参考文献数据库或专业光谱学手册。
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